Transformer Testing
GD300C Power Analyzer
Measures RMS voltage, average voltage, RMS current, active power, power factor and frequency of single- or three-phase power transformers, per JB/T 501 and GB 1094, at 0.5 accuracy class.
Overview
Measures RMS voltage, average voltage, RMS current, active power, power factor and frequency of single- or three-phase power transformers, per JB/T 501 and GB 1094, at 0.5 accuracy class.
Standards & Compliance
Cited in this product’s specification
- JB/T 501-91
- GB 1094-96
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-300C electrical parameter measuring instrument meets JB/T 501-91 and GB 1094-96. It measures the RMS voltage, average voltage, RMS current, active power, power factor and frequency of single-phase or three-phase power transformers at the same time, at 0.5 accuracy class.
Display: a 240x64 dot-matrix backlit LCD displays 18 electrical parameters simultaneously - single- or three-phase RMS voltage, average voltage, RMS current, active power, power factor and frequency - with a multi-screen menu for easy operation.
Computation and calibration: it automatically calculates parameters such as P0, I0, Pkn, ekt, ek75°C and Zk, and automatically corrects voltage amplitude, waveform and temperature. CT/PT ratios are key-settable to display primary values directly.
Interfaces: it includes a printer port and a serial RS232 computer interface, with strong anti-interference, overload alarm, and reliable over-voltage and over-current protection for field calibration environments.
Technical Specifications
| Measurement parameters | RMS voltage, average voltage, RMS current, active power, power factor, frequency (18 parameters) |
|---|---|
| Accuracy class | 0.5 |
| Display | 240x64 dot-matrix backlit LCD |
| Auto-computed parameters | P0, I0, Pkn, ekt, ek75°C, Zk |
| Interfaces | Printer port, RS232 computer interface |
| Standards | JB/T 501-91, GB 1094-96 |
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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