Product Introduction
MOEORW-W501 transformer short-circuit impedance tester is specially used for low-voltage load impedance test of 35kV and above power transformers. It can complete single-phase / three-phase / zero-sequence impedance measurement with one wiring, automatically convert test data to rated temperature and rated current conditions, calculate impedance error percentage, and intuitively reflect transformer winding health status. Equipped with a 7-inch high-brightness color touch screen, Chinese-English bilingual menu, built-in printer and large-capacity memory, it supports mobile phone APP remote control and data upload, realizing intelligent, efficient and standardized field test.
Product Parameter (specification)
|
Voltage measurement range |
15～900V, accuracy:±(reading×0.2%+3 words) |
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Current measurement range |
1A～100A, accuracy:±(reading×0.2%+3 words) |
|
Power measurement accuracy |
±(reading×0.5% +3 words) (COSΦ＞0.15) |
|
Frequency measurement range |
45～55Hz, accuracy:±0.1% |
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Short-circuit impedance measurement range |
0～100%, accuracy±0.5% |
|
Built-in power supply |
2000W AC adjustable power supply (0-220V/10A) |
|
Working power supply |
AC220V±10%, 50Hz±1Hz |
|
Operating temperature |
-10℃～40℃ |
|
Relative humidity |
≤85%RH |
|
Host dimensions |
360×290×170mm |
|
Host weight |
4.9Kg |
|
Storage capacity |
200 sets of test data |
|
Interface configuration |
USB, 232 communication, printer interface |
Product Feature
- Built-in 2000W adjustable power supply, no external voltage regulator required, automatic voltage regulation, easy field use.
- 7-inch high-brightness touch color screen, clear display under strong light, full touch operation, simple and intuitive.
- Support single-phase / three-phase / zero-sequence impedance measurement, automatic data calculation and error analysis.
- Equipped with high-speed thermal printer, built-in 200 sets of data storage, support U disk data export.
- Chinese-English bilingual switching, compatible with mobile phone APP remote control and data upload management.
- With external PT/CT transformation ratio setting function, suitable for large-capacity transformer testing.
- Automatic temperature correction function, convert test results to rated temperature standard data.
- Small size, light weight, standard 8m test cable, easy to carry and on-site wiring.
- Over-current, over-voltage protection function, stable and reliable operation, long service life.
Product Application
- Delivery test and factory inspection of power transformer manufacturers.
- Handover test and acceptance test of power construction and transformation projects.
- Routine preventive test of power supply companies, power stations and large industrial users.
- Winding deformation diagnosis after transformer is impacted by short-circuit current.
- Transformer state evaluation after transportation, installation and maintenance.
- Third-party testing and electrical performance certification of power equipment.
Company Qualifications
FAQ
Q1: Does the instrument need an external voltage regulator?
A: No, MOEORW-W501 has a built-in 2000W adjustable power supply, which can automatically adjust the voltage and meet the test requirements without an external voltage regulator.
Q2: Can it test three-winding transformers?
A: Yes, select the corresponding measurement position (high-low, high-medium, medium-low) according to the wiring requirements, short-circuit the corresponding winding and keep other windings open for testing.
Q3: How to save and export test data?
A: The instrument can automatically save data to the internal memory (up to 200 sets), and insert a U disk to export data to the U disk for storage and query.
Q4: What is the judgment standard of test results?
A: Impedance error within ±2%: normal operation; ±2%～±5%: regular inspection; exceeding ±5%: stop operation for maintenance.
Q5: Can it be used for field testing of large transformers?
A: Yes, it supports external PT/CT, set the transformation ratio to expand the test range, suitable for on-site testing of large and medium-sized transformers.
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