Product introduction
The Transformer On Load Tap Switch Tester is an indispensable tool for transformer maintenance in power systems. By precisely measuring and analyzing the time parameters and dynamic resistance waveforms during the OLTC switching process, it effectively evaluates the mechanical performance of the tap changer, the condition of electrical contacts, and the health of the transition resistors. It enables timely detection of potential faults such as contact erosion or wear, mechanical jamming, spring fatigue, resistor aging, and timing deviations, providing strong technical support for the safe and stable operation of transformers. Regular OLTC testing is a key part of preventive maintenance and condition-based maintenance strategies.
As a professional OLTC test equipment manufacturer and supplier in China, UHV focuses on delivering high-precision measurement performance, stable waveform acquisition, and reliable field operation capability for power utilities and transformer maintenance applications worldwide.
Product Parameters
Technical parameters
| output current | ≥1A,3 channel |
| data sampling | sampling channel：6 channel |
| sampling frequency：10kHz/s | |
| Measuring range | transition resistance：0.5Ω～20Ω |
| transition time：≤250ms | |
| resolution | resistance：0.01Ω |
| time：0.1ms | |
| measurement precision | transition resistance：±(5%+3 digital) |
| transition time：±(0.1%+1 digital) | |
| Storage model | U disk storage,machine storage 1G |
| Dimensions | 350mm×230mm×200mm |
| hostweight | 5kg |
Conditions of Use
| Environment temperature | -10℃～50℃ |
| environment humidity | ≤85%RH |
| Working power supply | AC220V±10% |
| power supply frequency | 50±1Hz |
Advantages:
Comprehensive function: This tester can measure transition time, transition waveform, transition resistance, three-phase synchronization, and other parameters of on-load tap changers, providing users with comprehensive switch performance analysis.
Easy to operate: The instrument adopts a large-screen dot-matrix LCD display and a hierarchical Chinese menu, making it intuitive and easy to operate. Users only need to follow the on-screen prompts and press the corresponding function keys to perform measurements.
High level of intelligence: The instrument features intelligent testing and result analysis functions, which can automatically identify waveform faults and mark them, making it convenient for users to further analyze and compare waveforms.
Strong anti-interference capability: The all-aluminum alloy chassis is equipped with power noise filters and anti-interference circuits, enabling reliable measurement in environments with poor power quality and strong electromagnetic interference.
Data storage and printing function: The instrument is equipped with a non-volatile data storage system, which can store multiple sets of waveforms and test data, and allows archiving, retrieval, and analysis at any time. At the same time, the instrument includes a built-in printer for direct printing of test results.
Details
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