Transformer Testing
GD-810 Transformer On-Load Tap-Changer Tester
Measures transition time, transition waveform, transition resistance and three-phase synchronism of on-load tap-changers on transformers with or without a neutral point, without lifting the core.
Overview
Measures transition time, transition waveform, transition resistance and three-phase synchronism of on-load tap-changers on transformers with or without a neutral point, without lifting the core.
Standards & Compliance
Benchmark standards for this equipment category
Systems in this category are commonly specified against these standards, linked to the issuing body. Final configuration and acceptance criteria follow the standard and edition you nominate.
- IEC 60076-1 — Power transformers - General
- IEC 60076-3 — Insulation levels and dielectric tests
- IEC 60076-5 — Ability to withstand short circuit
- IEEE C57.12.90 — Test code for liquid-immersed distribution and power transformers
- GB 1094 — Power transformers
- GB 50150 — Hand-over test of electrical equipment
Application Scenarios
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Get a QuoteDetailed Description
Overview: the GD-810 features a large-screen LCD with human-machine dialogue operation, and prints and stores test results. It is suitable for on-load transformers with or without a neutral-point lead-out, and requires no core lifting.
Measurement capability: it measures the transition time, transition waveform, transition resistance and three-phase synchronism of on-load tap-changers.
Technical parameters: it uses a three-phase test supply with 0.5 A output current, a sampling frequency of 10-20 kHz and a single-waveform storage time of 6.4 seconds. The synchronism error is 0.2 ms and the power supply is AC220V±10%, 50Hz±2%.
Technical Specifications
| Test supply | Three-phase, output current 0.5A |
|---|---|
| Sampling frequency | 10-20kHz |
| Single waveform storage time | 6.4s |
| Transition resistance (Y/O-type transformer) | ≤40Ω |
| Transition resistance (Y-type transformer) | ≤20Ω |
| Synchronism error | 0.2ms |
| Power supply | AC220V±10%, 50Hz±2% |
Frequently Asked Questions
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Reviewed by the Application Engineering Team at Nanjing Gaodian Electric Power Equipment
Specifications are taken from the manufacturer’s technical documentation. Final configuration and acceptance criteria follow the standard and edition you nominate — tell us your test list and we will confirm the ratings.
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