Transformer Oil & Insulating Oil: Functions, Types, and Monitoring
Selecting the right transformer oil is vital for the operational safety of energy infrastructure. As a highly refined insulating oil, it performs two critical tasks in power transformers and converters: providing electrical insulation for the windings and ensuring the efficient dissipation of operational heat.
Types of Transformer Oils: Mineral Oil vs. Ester
Today, operators have a wide range of insulating fluids at their disposal:
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Mineral Oils: The proven standard, valued for its high chemical stability and cost-effectiveness.
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Synthetic and Natural Esters: These are increasingly gaining importance as environmentally friendly, flame-resistant alternatives (e.g., MIDEL)—particularly in water protection areas or environments with high fire safety requirements.
By completely permeating the solid insulation (paper/pressboard), the insulating oil prevents partial discharges and protects the system from thermal overheating.
Condition Assessment via Professional Oil Sampling
Regular oil sampling is the most important tool for asset management. It serves not only as a quality assurance measure for the oil itself but also as an early warning system for the entire transformer.
High-quality insulating oil is a prerequisite for a long equipment service life. If oil quality deteriorates due to oxidation or moisture ingress, the dielectric strength decreases, which massively increases the risk of costly failures and plant downtime.
Modern Oil Analysis: DGA and Standards (DIN EN 60422)
Chemical laboratory testing today goes far beyond simple physical tests. To precisely determine the “state of health” of the equipment, specialized procedures are used:
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Dissolved Gas Analysis (DGA): This method is the gold standard of diagnostics. Similar to a blood test, gases dissolved in the oil are analyzed. The composition of these gases allows for precise conclusions regarding thermal faults, arcing, or partial discharges inside the housing.
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Furan Analysis: This provides information on the degree of depolymerization of the paper insulation and, consequently, the remaining service life of the transformer.
Compliance with Standards for Maximum Safety
The monitoring of insulating oil in electrical equipment is subject to strict guidelines. DIN EN 60422 defines the limit values and test intervals for mineral oils in transformers. Standard-compliant sampling is the foundation for legally sound expert reports and well-founded condition assessments.
Conclusion: Proactive oil management through regular analysis ensures asset availability, optimizes maintenance costs, and significantly extends the service life of your transformers.
Density Meter | Digital Hydrometer
The portable density meter is ideal for beginners. It measures sample density directly and easily on-site. Using the built-in pump, the device draws samples from the storage container and instantly displays the results—either as density or as concentration in units like °Brix, %v/v alcohol, or %w/w H₂SO₄ (sulfuric acid). Thanks to its lightweight and compact design, the measuring device is also suitable for hard-to-reach samples, such as batteries in tight shelves or wine samples from stacked barrels.
Technical Highlights of the Density Meter Compared to the Glass Hydrometer
- Minimal Sample Volume: Only 2 ml of sample is needed, helping to avoid sample waste.
- Direct Sample Collection On-Site: The built-in pump draws samples directly from the container, simplifying the process.
- Integrated Conversion Table: Results are displayed directly in preferred units, eliminating the need for extra calculations.
- Wide Measurement Range: This device can replace a full set of hydrometers.
- Automatic Temperature Compensation: Results are precise and reliable within seconds.
- Efficient Data Management and Easy Transfer: Stored results can be automatically transferred, eliminating manual note-taking.
- Consistent Results: The results are reliable and consistent, regardless of user experience.
- Lightweight and Robust Design: This allows for easy transport and safe storage.
This device is the lightest of its kind on the market. Its slim design allows it to fit into narrow spaces, such as wine cellars or battery production facilities. A protective case, rubber housing, and shoulder strap make the device ideal for safe on-site use. It is leakproof (IP54) and reliably resists sample splashes. The chemical resistance of sample-contacting parts has been thoroughly tested, protecting the device from the effects of solutions and acids for a long-lasting lifespan.
Smart Features for an Optimized Workflow
The device includes a backlit display and an illuminated measuring cell, making it easy to use even in dark environments. Sample IDs can be saved and assigned to sampling locations. Stored results can be conveniently printed or exported via the IrDA interface, enabling quick and efficient data processing.
We are happy to advise you on topics related to: Lead Batteries | Battery cells | Battery testing
DC Ground Fault | GFL1515 | Battery Ground Fault
GFL1515: Essential for Detecting DC Ground Faults in DC Systems
The GFL1515 is an essential measuring device for detecting DC ground faults in various DC systems. This GFL1515 Detector is crucial for identifying faulty grounding, especially where electrical cables are damaged or show leakage to the ground.
Fault Detection Through Signal Injection
The GFL1515 detects unintentional DC ground faults by injecting a low-frequency signal into the faulted polarity. Using current clamps and a portable receiver, operators can follow this signal to pinpoint the physical location of the DC ground fault.
Online Measurements with High Voltage Tolerance
The GFL1515 enables measurements even in online DC systems. While the device’s output current remains low, its output voltage can reach up to 1000V, allowing it to function safely without interference. Per the NERC PRC 002-6 standard, the battery and DC power system must be checked for unintentional grounding every four months. If a ground fault is found, the GFL1515 allows for precise fault localization without disconnecting the live circuit.
Method for Fault Localization
The GFL1515 uses several methods to locate faults accurately, based on these principles:
Signal Generator and Return Circuit
The signal generator connects to the DC system with two test leads, injecting a low-frequency current signal. This signal flows through the circuit, exits at the faulted grounding point, and finally returns to the generator. This return circuit assists in signal tracing in the next step.
Signal Receiver for Directional Tracking
The signal receiver tracks the signal’s direction, which always points toward the fault. Using one clamp on two busbars, or two clamps on separate busbars, the device works efficiently with strong anti-interference capability, even in online systems.
Signal Strength and Phase Angle Changes
The strength and phase angle of the signal change significantly before and after the grounding fault. These changes help pinpoint the exact fault location with accuracy.
We are happy to provide further guidance on the topics: Battery Ground Fault | Ground Fault DC | DC Ground Fault.
Battery Condition Analyzer | BTA 200 | Stationary Batteries
Introduction to the BTA 200 Battery Condition Analyzer
The BTA 200 Battery Condition Analyzer is an advanced device specifically designed for the precise monitoring of battery health. Stationary batteries, especially those used in critical applications such as emergency power supply systems, benefit greatly from this device. The BTA 200 combines modern technologies to ensure that batteries function optimally.
Measuring Internal Resistance
One of the key functions of the BTA 200 is the measurement of internal resistance in batteries. This measurement is crucial as it assesses the condition of the battery electrodes and the stability of the cell structure. In emergency power systems, where a stable energy supply is essential, internal resistance measurement plays a central role. It helps to detect potential issues early, allowing for corrective measures before failures occur.
Conductivity Testing for Improved Efficiency
In addition to internal resistance measurement, the BTA 200 can also test the conductivity of the battery. This function enables the evaluation of the battery’s electrical performance. A good conductivity rating ensures that the battery operates efficiently and provides a reliable energy supply. This is particularly important since consistent performance is critical for the efficiency of energy systems that rely on stationary batteries.
Connection Cable Testing for Secure Connections
Another important feature of the BTA 200 is its connection cable testing. The device checks whether the battery’s cable connections are functioning correctly. Poor connections can lead to voltage drops and disrupt energy transfer. Such issues could result in significant failures in critical applications. The BTA 200 ensures that the connection cables do not cause power losses, improving the overall reliability.
AC Signal Discharge for More Accurate Measurements
Using the advanced method of AC signal discharge, the BTA 200 can measure the battery’s internal resistance even more accurately. This method allows for the assessment of resistance under varying operational conditions. As a result, more precise measurements are obtained, particularly for batteries subjected to different loads.
User-Friendly Operation
Another outstanding feature of the BTA 200 is its user-friendly interface. The device is equipped with a TFT touchscreen as well as a keypad, making it easier to operate. Thanks to this intuitive interface, it is simple to navigate the various functions and perform tests. This greatly facilitates monitoring and testing, for instance, in centralized battery systems.
Data Management and Analysis for Informed Decisions
Finally, the BTA 200 offers comprehensive data management and analysis capabilities. Specialized software enables efficient management of all collected data. These can be analyzed and reports can be generated to support informed decisions in battery management. This helps to optimize the performance of battery systems and enhance their reliability.
Conclusion
In summary, the BTA 200 Battery Condition Analyzer is a versatile and powerful device. It offers a range of features specifically tailored for the analysis and monitoring of stationary batteries. With its precise measurements, user-friendly interface, and efficient data analysis, the BTA 200 is an essential tool for battery management in critical systems such as emergency power supply, telecommunications networks, and data centers.
We offer you advice on the topics of: Stationary Batteries | Battery Analyzer | Battery Diagnostics
Transformer oil drip trays | 10 litre oil drip tray
High-Performance Transformer oil Drip Trays with 10-Litre Capacity
Product Description
The 10-litre transformer oil drip trays are essential for anyone who regularly changes oil in transformers or electric coils. These portable trays are specifically designed to simplify the oil change process. At the same time, they help keep your work area clean. Their slim design makes them particularly suitable for low oil drain taps with limited ground clearance.
These trays are constructed from robust and durable plastic. They can withstand temperatures up to 60°C. Additionally, they offer excellent resistance to a wide range of solvents. This includes acids, alkalis, alcohol, oil, petrol, chemicals, and antifreeze. Their impact-resistant design ensures a long service life. Plus, the 10-litre capacity provides ample space for used oil.
The trays feature a concave drainage surface. They come equipped with three openings, each fitted with secure caps to prevent accidental spills. The bright red color of the caps makes it easy to identify the outlet openings, even in busy work environments. Furthermore, three sturdy carrying handles are integrated into the design. This allows for safe and easy transport when the tray is full.
Instructions for Use
- Before starting the oil change, loosen both red wing screws to expose the outlet openings.
- Position the transformer oil drip tray under the oil drain of the transformer or e-coil. Make sure the depression covers the oil drain point.
- Once the tray is full, dispose of the waste oil safely at an authorized waste oil collection point. This helps prevent environmental pollution.
The state-of-the-art 10-litre drip tray makes changing oil effortless and efficient. Additionally, it is designed to be environmentally friendly.
We offer you advice on the topics of: Transformer oil | Oil sampling | Drip tray
Moisture measurement in oil | ST-200 Sensor
The ST-200 Moisture measurement in oil Sensor is a high-precision tool for measuring moisture in oil online. It uses WGM Support technology, giving it exceptional sensitivity to changes in water content. This allows accurate, real-time monitoring of oil quality, which is essential for reliable equipment performance.
The sensor is highly sensitive to water contamination. It can detect dissolved, free, and emulsified water. Its wide test range of up to 1015 allows accurate readings in varied conditions. Unique grounding technology enhances reliability and durability, while the sensor’s advanced design makes cleaning easy.
The ST-200 meets international standards and is suited for commercial and industrial environments. It provides continuous, 24/7 oil quality monitoring to keep essential equipment safe. By enabling preventive maintenance, it helps avoid costly downtime and reduces expenses due to oil quality issues. Additionally, it lowers oil change and disposal costs, promoting environmentally friendly operations.
The Moisture measurement in oil is widely used in industries such as oil production, refineries, power plants, power transmission, construction machinery, aviation, transportation, steel and metallurgy, oil storage, and manufacturing. It works with many types of oil, including lubricants, hydraulic oils, gear oils, engine oils, fuel oils, insulating oils, turbine oils, and both light and heavy oils.
The ST-200 pairs easily with the ST-200 indicator meter for precise monitoring of moisture and temperature. Warning points are flexible, and the built-in AC/DC module provides a stable 24V DC power supply. Together, these features form a complete solution for maintaining and monitoring oil quality in various industrial applications.
We would be happy to advise you on the following topics: Moisture Sensor | oil quality sensor | oil moisture and water activity.
Oil Testing | DÖPEV | Oil Sampling Control
DÖPEV – the display oil sampling device with a twist for oil sampling according to DIN EN 60475 (VDE 0370-3).
Failures due to faulty transformer oil analysis can lead to negative and detrimental developments. They can evidently have serious effects on the power supply and the service life of the transformer. Sampling the oil from oil-filled transformers in operation is an efficient method for determining the condition of the solid and oil insulation. In addition to that, it provides information about the operating condition of the transformer.
And it does so without having to open or deactivate the transformer. Improper oil sampling or contamination can have an immense influence on the measured values of the individual test methods. Ultimately, this can lead to false conclusions about the quality of the insulating liquids. To ensure consistent performance and long transformer life, regular oil testing in installations is essential.
Taking oil samples without contamination
The overall aim is to remove the oil from a transformer without contamination. To further carry out an oil test in the laboratory and analyse the sample. Your result of the “gas in oil analysis” or the other “dielectric measurement methods” can only be as good as you have taken your oil sample. With the new oil sampling system DÖPEV you take the oil sample free of contamination. As well as according to the standard and without contact with the outside air.
ÖPEV-k and DÖPEV: undoubtedly the perfect oil analysis set
These periodic examinations are generally an important part of the maintenance of transformers for a safe power supply. Not only the sampling, but also the handling of the oil sample plays a major role. Sampling and handling are made very easy and effective with the ÖPEV-k and the DÖPEV. Basically, this allows you to carry out an insulating oil test in no time at all. The ÖPEV-k oil sampling device guarantees absolute ease of use for safe oil sampling from oil-filled transformers. In combination with the DÖPEV display oil sampling device, oil sampling becomes even easier.
By means of three ball valves on the DÖPEV you can regulate the oil sample. Furthermore, you can constantly control the temperature of the oil. The oil analysis device DÖPEV can be connected to the oil drain device ÖPEV-k and creates the perfect oil analysis set. With this set you can take the oil sample from the transformer comfortably and contamination-free. And in the next step, transport it to the oil test in the laboratory.
We offer you advice on the topics: Insulating oil sample | Oil testing | Oil analysis device
Distribution transformers | ÖPEV-k | Transformer oil drain tap
Oil filled distribution transformers are a very important part of the power supply, regardless of their size. By performing targeted inspections, maintenance, and servicing, it is possible to extend their service life. However, to properly analyze the contained insulating oil and draw a possible diagnosis, it is necessary to extract the oil correctly. If the insulating oil the transformer contains is faulty, this can in fact lead to serious consequences.
ÖPEV-k oil drain device for transformers
This therefore means that accurate results of insulating oil analysis are critical to the condition of the transformer. The results of an oil sampling additionally determine the further course of action with the oil transformer. In general, the ÖPEV-k is ideally suited for oil sampling, namely on an oil local network transformer. Or on distribution transformers that have a difficult or poorly accessible oil drain valve. On some transformers it is very complicated to take an oil sample. For example, on concrete or complete stations.
But ÖPEV-k guarantees absolute ease of use for safe oil sampling at the transformer. Adapters for the nominal width 22 NW and 31 NW are available as accessories. Consisting of stainless steel, the ÖPEV-k and the adapters thus come in a robust and compact design. The oil drain device ÖVEP-k is screwed onto the drain tap of the transformer with the adapter (for example NW 22). The shaft is then used to open the drain valve of the transformer and the ÖVEP-k fills with oil.
In total, there is an oil sampling tap and a vent valve on the ÖVEP-k. Consequently you can connect a hose to the oil transformer drain tap of the OVEP-k to remove the oil sample without contamination. WGM Support also offers a remote sampling kit to control the oil sample. In summary, the ÖPEV-k is the ideal and indispensable tool for effortless oil draining from oil distribution transformers.
We offer advice on the topics of: ÖPEV-k | DÖPEV | Oil sampling | Insulating oil analysis
Micro Ohm Meter | DLRO2 | Ohmmeter
The Micro Ohm Meter DLRO2 is a rugged, portable 2 A micro ohm meter. It delivers fast, accurate and repeatable measurements – even in locations full of electrical noise. The DLRO2 joins a host of products that proudly carry the Ducter™ brand as the latest addition. Ducter™ testers are as well known and proven as Megger insulation resistance testers. Users in the power supply sector or industry get a high level of safety thanks to CAT III-600 V/CAT IV-300 V in accordance with IEC61010. In addition, the device is equipped with self-protection in case of accidental connection up to 600 V without tripping a fuse.
This saves valuable time that would otherwise be spent repairing or obtaining a replacement fuse. When working outdoors, IP54 protection ensures that neither rain nor dust will prevent testing. The DLRO2 is at home in a wide variety of applications, measuring low-resistance values on railroads and aircraft as well as industrial components. Thanks to dedicated long test leads to optimize output, even applications where long test leads are required are no problem for the DLRO2. The long test lead feature delivers up to 1 A of test current into 4 ohms of resistance.
This makes the DLRO2, with its optional test leads on cable reels, the ideal instrument for testing wind turbines and aircraft lightning protection applications. For testing smaller inductive loads, the DLRO2 can apply 2 A for at least 15 seconds, made possible by the integrated high-capacity batteries and a separate inductive load function. The batteries can be fully charged within 2.5 hours, minimizing downtime. Note: The DLRO2 is not intrinsically safe/ ATEX certified and must not be used in explosive environments.
We are happy to advise you on the topic: Microohm Test Equipment | Low Ohm Measurement | Micro Ohm Meter
Forklift Battery | BLE 600 | Batteries
BLE 600: A Versatile Battery Management Device
The BLE 600 is a compact 3-in-1 device designed for charging, discharging, and activating lead acid or nickel-cadmium (NC) batteries. It is ideal for forklift batteries and battery charging systems used in uninterruptible power supplies (UPS), emergency lighting systems, and central battery systems. Thanks to its small size, the BLE 600 is a portable and convenient tool for regular maintenance of single cells, especially older ones, with voltages of 1.2V, 2V, 4V, 6V, 8V, and 12V.
Flexible Functionality for Battery Maintenance
The BLE 600 can perform its three functions—charging, discharging, and activating—either separately or simultaneously. This flexibility enables users to effectively maintain forklift batteries while streamlining overall service. When used together, the charging and discharging functions can charge and discharge the batteries in one or multiple circuits using a low constant current. The device can even perform these operations multiple times individually.
Regeneration and Monitoring Capabilities
The activation function repairs damaged material on the battery electrode plate, correcting any malfunctions and thereby regenerating the battery. This process increases the capacity of the forklift battery. Additionally, as a battery load simulator, the BLE 600 checks the battery’s discharge status and can conduct capacity tests to accurately determine the actual capacity of the battery systems.
By regenerating forklift batteries, the BLE 600 enhances their efficiency and optimizes resource usage. It also allows for long-term monitoring of battery conditions, continuously checking the traction battery to prevent serious damage over time. The device features a user-friendly interface with both touchscreen and keyboard controls. Furthermore, it includes a direct USB drive for easy data transfer to a PC. Software updates can be completed quickly, and users can download reports in Excel format at any time.
We offer you advice on the following topics: Stationary batteries | Battery | Battery charging / discharging.
Battery Impedance Tester | Battery Test | BITE 3
The Megger BITE 3 battery impedance tester measures key parameters for assessing the condition of lead-acid batteries with a capacity of up to 2,000 amp-hours. The measured values include cell impedance, cell voltage, and cell junction resistance. Additionally, the BITE 3 performs an internal ohmic test.
For the first time in a device of this kind, the BITE 3 also measures trickle charge current and superimposed AC current. An integrated spectrum analyzer displays the harmonic content of the AC current. The device’s firmware is internet-capable and can be updated; it also supports multiple languages.
The BITE 3 is particularly user-friendly, making it ideal for the regular inspection of lead-acid batteries. It measures internal impedance, junction resistance, cell voltage, as well as trickle charge current and ripple current. These values, together with temperature, specific gravity, and other battery parameters, enable a comprehensive assessment of battery condition—from terminal to terminal—and, to some extent, of the charger (specifically, the superimposed AC current and its harmonic components).
Megger recommends incorporating the BITE 3 as part of a comprehensive battery maintenance program:
- For lead-acid batteries, a semi-annual inspection is advisable,
- For VRLA batteries, a quarterly check is recommended.
Overall, the BITE 3 is among the easiest and most reliable devices for monitoring batteries and chargers.
We will be happy to advise you on the subject: Battery measurement | Battery testing | Battery capacity test.
Cable location | vLoc3 | Cable measurement
vLoc3 line locator series consists of 7 different features and functions: vLoc3-Pro, vLoc3-5000, vLoc3-Cam, vLoc3-9800, vLoc3-ML, vLoc3-RTX-Pro and vLoc3-DM. The vLoc3 series line locator receivers are, in short, the perfect measurement devices for locating underground networks.
vLoc3-Pro is a locating system for locating underground lines and cables. It enables 3-dimensional line location. And is mainly used in the field of cable measurement technology. It also provides all the necessary information for accurate cable testing and cable fault location. Two sets of 3D antennas detect interference fields. The degree of interference is shown on the display in three different colors. In addition to the familiar classic locating mode, the cable fault locator also has other innovative features. Thanks to the vector screen, the user no longer even has to walk over the cable to check it. This leads to more safety, for example in road traffic.
Moreover, the device contains eight passive locating modes and a sheath fault location function. As well as an SD mode and a frequency range of 98Hz – 200KHz. If the receiver swings too fast, the device alerts the user. Thereby it avoids mislocations. The measuring device also indicates cables laid too flat, field disturbances or interference fields caused by above-ground routes.
vLoc3-5000: The vLoc3-5000 receiver combines Signal Select™ (SiS), Signal Direction (SD), Bluetooth, real-time colour coding and an internal precision GPS module.
vLoc3-Cam: The vLoc3-Cam is the easiest tool when it comes to finding probes (pig transmitters) and camera heads.
vLoc3-9800: The vLoc3-9800 locator is a simple tool for locating underground utilities to prevent damage while gathering information for analysis.
vLoc3-ML is the advanced version of the vLoc3-Pro cable locator. It is the 2-in-1 device for marker and line location and enables precise location of disc and ball markers.
We are happy to advise you on the topics: Cable location | Cable measurement technology | Cable fault location.
VLF Measuring M-VLF60 | Cable Diagnostics
VLF Meter M-VLF60 | Cable Testing | VLF Testers – Testing medium voltage cables with the M-VLF60 is easier today than it was many years ago. A VLF test finds faults in your cable system at much lower voltage than a conventional DC test. Thus, no traveling cells are generated. The M-VLF60 is a compact and, thanks to its robust design, extremely field-proof test system for medium voltage cables. No external PC is required on site. Fast commissioning and the possibility of true continuous operation qualify the unit as an ideal tool for routine cable testing.
With the portable VLF meter M-VLF60 you can test the following cables XLPE, PE & EPR. The VLF tester series finally allows utilities and industry an economical alternative to DC testing. To protect the operator and the equipment, the device has two independent discharging devices and an integrated 12kV reverse voltage protection (50 Hz). Thus, the software allows easy report generation. Also, the fast programming of test sequences. VLF stands for Very Low Frequency, 0.1 Hz and below.
Thus, it is an alternating voltage at low frequency. A VLF test system is simple to operate and the test is easy to perform. Conventional AC voltage test equipment has been used for decades for many types of installations. The test voltage is applied for the desired duration. This is because the DUT holds the voltage and either passes or fails. It is a pass/fail test. Why VLF testing? Because DC tests damage the insulation of the cable. That way, VLF testing shows the damage of the insulation without harming the cable.
We offer you advice on the topics of: VLF meter devices | cable diagnosis | VLF diagnosis.
VLF Measuring M-VLF34 | Cable Test
VLF Meter M-VLF34 | Cable Testing – The field of work of the M-VLF34 is cable testing and cable diagnosis. The high voltage generator is a very compact and very light VLF test instrument. With the variable VLF system, it is possible to select the two polarities accordingly the mode DC testing and the AC output frequency. Cable sheath testing or sheath fault location are part of the selection range. M-VLF34 is a portable generator that generates high voltage to eliminate cable faults.
For the 0.1Hz VLF test system is suitable for medium voltage cable testing. VLF meter type M-VLF34 is a portable system for cable diagnosis and testing. A high output current up to 85mA is considered the special strength of the device. The powerful output is able to drive capacitive loads up to 15 microfarad. Weighing only 45kg, the high voltage generator is a compact VLF unit, making it perfect for mobile use. Due to its light weight, the site of operation can be easily reached.
With a maximum output voltage, it is possible to test a cable with a length of up to 8 km. M-VLF34 can also be extended to a cable diagnostic system due to its full modularity. Also, the system offers different operating modes. A built-in discharging device is available for discharging the DUTs. The M-VLF34 has a manual and automatic test diagnostic sequence. No external PC is required on site. Due to the fact that the VLF measuring device is not thermally limited, it can be operated continuously over the entire operating time.
We offer you advice on the following topics: VLF measuring devices | cable diagnostics | VLF diagnostics.
Time Domain Reflectometer | TDR2000-3 | TDR Meter
Time Domain Reflectometer: The TDR2000 series has a large, high-resolution, color WVGA display with easily adjustable performance features. Directional control keys along with soft keys make operation intuitive and easy for the user.An AUTO selection option ensures that the most effective parameters are selected based on the required range, supporting rapid diagnosis of TDR tracking. The ability to manually override the Auto function allows fine-tuning and detection of hard-to-detect errors.
The dual tracking and dual cursor capability allows complete flexibility; the operator has complete control and instant distance indication between the two points. The tracking comparison feature also allows for in-depth inspection between tracking conditions. Extra high resolution along with daylight backlighting and user-determinable color schemes give the graphical display a dynamic quality that helps the operator identify key tracking events.
Trace storage: 100 internal trace memories are available for storing and recalling test results. The tracings can be recalled and displayed for analysis or can be compared to an active display to aid in fault location.Alternatively, the stored results can be downloaded to a computer via a USB interface using TracXpert software and the supplied USB cable. Step TDR function:The dead zone effect of a standard pulse TDR can mask defects near the end, making them undetectable. The addition of a step function on the TDR2050 fixes this problem. Step TDR technology means that the signal is impressed at full strength and remains there until a fault is detected. This makes the step TDR technology perfect for detecting faults near the end that are missed by standard pulse TDR.
We will be happy to advise you on the subject of: Time Domain Reflectometer | Fault Detection | Function TDR.
PD150 Fault indication system partial discharge
Online partial discharge: The PD150 is a fault alarm system for partial discharges in the control cabinet. With the PD 150 fault alarm system, partial discharge activities within a live switch cabinet can be detected remotely. Partial Discharge is commonly found on aging MV & HV cable accessories. Insulation faults are an important factor in degradation and reduction of the lifetime of an electrical apparatus. This translates into raised exploitation costs and questionable reliability, while economic performance and reliability are key criteria in the evaluation of an electricity supplier.
One of the challenges is to address those secondary substations which are too often overlooked due to their high volume spread in a large territories. The PD-Annunciator is the next generation of partial discharge monitoring system for local or remote deployment at reasonable cost. Its unique design allows for quick and easy DIN rail installation, or directly held on metallic cabinets with its strong magnets. Need to monitore multiple switchgear cabinets?
PD-Annunciator is daisy-chainable for clean installation that requires minimal cabling. The easily available RJ45 cables are in fact all that’s needed to connect modules one another for data communication and power supply. Up to 3 sensors are connected to PD Annunciator. In case of detected PD activity, a local alarm would turn on the corresponding LED indicator and send this same alarm status to SCADA. Next Generation of Online partial discharge: PD-Annunciator is perfectly suited for substation environment, field applications, remote locations, etc. – 20+ years experience in the partial discharge detection and analysis field.
Breakdown Analyzer | ÖLPG | Oil Tester
The ÖLPG Oil Tester is a portable “Breakdown Analyzer” designed for on-site oil testing. This device fully automates the breakdown voltage or dielectric strength test for insulating oil, making the process both fast and cost-effective. A critical test for transformer oil quality is the breakdown voltage test: lower resulting voltage indicates lower oil quality. Ultra-light transformer oil testers like the ÖLPG are powerful and ideal for on-site testing, enabling operators to assess insulating oil quality directly, without sending samples to a lab. Immediate action can be taken based on results if necessary.
A quick procedure and shutdown time of less than five µs enable efficient testing. High-contrast display facilitates handling and navigation, while the Breakdown Analyzer also supports non-destructive testing of synthetic, ester, and silicone oils. Breakdown voltage in insulating oils is determined easily by sampling oil directly from the transformer or current transformer, then subjecting it to the fully automated test. Results provide operators with a clear assessment of oil quality, guiding decisions on retention or replacement.
Automatically generated test reports are ready for download as PDFs onto a USB stick. Rapid voltage cut-off ensures safe, non-destructive testing for synthetic, ester, and silicone oils. Pre-defined, fully automated test sequences adhere to current international standards, guaranteeing compliance with legal testing requirements. In conclusion, the ÖLPG Oil Tester represents a significant advancement in oil testing technology. Offering a reliable and efficient solution for operators in need of accurate and timely results.
We offer you advice on the topics of: Dielectric breakdown voltage | dielectric strength | oil tester
Mobile Particle Counter | PZMG 100
The PZMG100 is a mobile particle counter which can be used to quickly and easily check oil cleanliness and oil condition in hydraulic and lubrication systems during a service call. Samples can be taken directly via a pressure line or via the integrated pump. A measurement can be performed manually or automatically at a predefined time interval. Portable particle counters are preferably used for the on-site analysis of operating oils in hydraulic systems. Precise measurement of particle shapes and particle sizes in different versions. The mobile particle counter cleans the oil and measures its quality. High-quality particle counters from WGM Support for particle measurement during maintenance with the possibility of flow visualization.
We offer you advice on the following topics: Mobile particle counter | Operating oils | Hydraulic oil
Corrosive Sulphur | CS100 | Corrosive Sulphur Kit
The CS100 Corrosive Sulphur Kit provides a practical and cost-effective alternative to expensive laboratory tests. Its purpose is to detect corrosive copper sulphide deposits accurately. These deposits frequently cause multiple issues, which often lead to transformer failures. Standard inspections rarely reveal these deposits, as technicians must unwind copper wire and de-oil the paper to see the shiny sulphide deposits clearly. Usually, copper wires display dark or multicolored surfaces, and their discoloration can vary greatly along the entire length of the conductor. Until recently, costly laboratory tests were the only reliable method for detecting corrosive sulfur in transformer oil.
Sulfur exists in transformer oil in different forms and various compounds. Copper sulfides can appear with very diverse characteristics. Because of this, technicians suspect that undetected copper sulfides likely cause numerous malfunctions in transformers and reactors. The portable CS100 Kit offers a rapid, convenient, and affordable testing option.
Common copper corrosion tests refer to established procedures, such as ASTM D1275 Method B and IEC 62535 (the CCD test).
The IEC 62535 procedure, known as the CCD test and formerly named Cigre A2.32.TF01, tests copper conductors by accelerated oxidation at high temperatures. During this process, technicians wrap copper conductors in kraft paper and then perform a visual inspection. This step aims to identify corrosive sulfur compounds, which could contaminate the cellulose insulation with copper sulphide.
The ASTM D1275 Method B also uses accelerated oxidation, but on an electrolytic copper strip at 150°C for 48 hours. Afterward, a visual assessment checks for sulfur compounds that might contaminate copper surfaces. This method provides additional insights, allowing for a more comprehensive understanding of copper contamination risks.
We offer you advice on the following topics: Corrosive sulphur | Insulating Oil | Transformer oil
Tan Delta Meter | TDM 1515 | Tan Delta Measurement
Tan Delta Meter | Tan Delta Measurement
The Tan Delta Meter TDM1515 delivers accurate dissipation factor measurement of insulating oils. It measures the dielectric dissipation factor in transformer oil, insulating fluids, and other materials. The device supports advanced dielectric analysis, enabling users to evaluate tan delta resistivity, specific resistance oil, and capacitance. These measurements provide clear insights into fluid losses and help assess the condition of the insulation.
The TDM1515 serves as a versatile Tan Delta Analyser for Oil. It includes an integrated oil test cell that handles dissipation factor measurement oil without requiring additional components. The Tan Delta Tester Oil features several advanced components, including high-frequency induction heating, a precise temperature sensor, a measuring bridge, and AC and DC power sources. A standard capacitor and digital IC circuits improve performance and measurement reliability.
High-frequency induction heating ensures quick and even warming of the oil test cell. The system allows users to adjust the heating easily for precise control. The built-in drain system simplifies oil removal, making the process safe and efficient during Transformer oil Tan Delta testing.
In AC test mode, the TDM1515 uses the AC-DC-AC conversion method to prevent voltage and frequency instability. It maintains stable operation, even when the voltage generator is active. The integrated SF6 three-pole capacitor shields insulating oil dissipation factor and capacitance measurements from temperature and humidity interference.
The TDM1515 excels in professional Tan Delta Measurement applications. It provides reliable results for transformer oil tester tasks and long-lasting performance, making it an essential tool for professionals in dissipation factor measurement of insulating oils.
We offer you advice on the following topics: TDM1515 | Dielectric Dissipation Factor | Transformer Oil
Karl Fischer Water Content Determination | KF-750
Karl Fischer Titration KF-750 | Determination of the water content: Karl Fischer Titration has its place in every laboratory. Karl Fischer Titration KF-750 The KF-750 is a coulometric titrator. The water content and the water content determination according to Karl Fischer Titration impresses with its very good accuracy. With this KF titrator, nothing can actually go wrong when determining the water content according to Karl Fischer. The display, which is large and easy to read, shows every step in the process in a dialog. The pre-parameterized methods thus additionally facilitate the work. In addition, the versatility of the two KF titrators makes the instruments efficient and easy to operate. The KF measuring station is suitable for almost all areas such as the pharmaceutical, chemical, food or petroleum industries.
The coulometric KF titrator is the ideal instrument for determining even the lowest water content in samples. In the coulometry of a titration solution, the determination of the concentration titer is not necessary, making it easier to operate than in volumetric titration. Many experienced analysts still feel the smell of pyridine in their nose with horror when they hear the name Karl Fischer. However, modern reagents and easy-to-operate analytical instruments cleaned up thoroughly with such ideas. Today, coulometric and volumetric Karl Fischer titrators allow practically all applications to be performed simply, quickly and accurately. Because of its selectivity and accuracy, Karl Fischer titration has become the most important method for water and moisture determination. With the KF-750, titration can also be followed “live” in the form of a measurement curve. At the touch of a button, it is possible to switch between classic and graphical display.
We offer you advice on the topics of: Determination of water content | Karl Fischer Titration | Karl Fischer Method