Product Introduction
The on-load tap changer is the only moving part connected to the transformer circuit, therefore, its testing is receiving increasing attention. The "Code for Acceptance and Preventive Testing of Power Equipment" requires checking the operating sequence of the on-load tap changer and measuring the switching time. This instrument is mainly used to measure the transition waveform, transition time, instantaneous transition resistance values, and three-phase synchronicity of the transformer's on-load tap changer.
The MOEORW-W4505 transformer on-load tap changer tester is highly intelligent, featuring a fully Chinese menu and simple operation. Its small size, light weight, and strong anti-interference capabilities significantly reduce the workload of on-site personnel, making it an ideal instrument for power generation and supply units and the transformer manufacturing industry to ensure safe production and improve product quality.
Product Parameter (specification)
| Output current | 1.0A, 0.5A , 0.1A |
| Measurement range |
Transition resistance: 0.3Ω～20Ω (1.0A);5Ω～40Ω (0.5A);20Ω～100Ω (0.1A) Transition time: 0～320ms |
| Open circuit voltage | 24V |
| Measurement accuracy |
Transition resistance: ±(5% of reading ±0.1Ω); Transition time: ±(0.1% of reading ±0.2ms) |
| Sampling rate | 20kHz |
| Storage method | Local storage |
| External dimensions |
Main unit: 360*290*170 (mm); Cable box: 360*290*170 (mm) |
| Instrument weight | Main unit 6 kg, cable box 4.5 kg |
| Test cable length | Standard configuration 13 meters, custom length available. |
Usage conditions
| Ambient temperature | -10℃～50℃ |
| Ambient humidity | ≤85%RH |
| Operating power supply | AC220V±10% |
| Power supply frequency | 50±1Hz |
Product features and applications
- The instrument has a large output current and is lightweight;
- When testing Yn, Y, and D type transformers , the resistance values are displayed directly without conversion.
- Measurements can be performed with or without windings;
- The waveform display automatically adjusts the resistance, time value, and amplitude based on the sampled values.
- It has a complete protection circuit and high reliability;
- A 7-inch high-brightness touchscreen color LCD monitor with clear display even in bright sunlight, full touchscreen operation, and free switching between Chinese and English.
- Built-in high-capacity lithium battery, can be used without external power supply (optional).
- It can automatically save 500 sets of data internally.
- The instrument can be controlled via Android phones or tablets. By following the official WeChat account and downloading the dedicated app, users can control the instrument, store and upload test data for easy access.
Prodection details
Power field test
- Substation transformer commissioning test
- Transformer preventive testing
- On-site on-load tap changer fault diagnosis
- Condition assessment of old switches
Manufacturing Inspection
- Transformer factory inspection
- On-load tap changer production verification
- Switch quality spot checks and type tests
Inspection and maintenance scenarios
- Transformer overhaul switch operation verification
- that have been out of service for a long time before commissioning
- Quick troubleshooting of switch contact oxidation, broken strands, and aging
Applicable Equipment Types
- Y/Yn/D type power transformer
- Neutral point led-out/not led-out transformer
- On-load tap changer with/without winding
Company Qualifications
FAQ
Q: Are you a factory or a trading company?
A: We are a professional manufacturer of testing equipment.
Q: How is the after-sales service?
A: The warranty period is 12 months. After the warranty period, we also provide lifetime service paidrepair or service.
Q: How is the after-sales service?
A: The warranty period is 12 months. After the warranty period, we also provide lifetime service paidrepair or service.
Q: What about transportation?
A: It depends on your requirements. We can ship to your airport by air, to your seaport by sea, or to your office by courier.
We also accept cooperation with your shipping agent.
Q: Are your keyboard, interface, software, and manuals in English?
A: Yes, if you are using the English version of the keyboard, interface, software, and manual and require other languages, please contact us for confirmation.
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