IEC60076 Z-type Transformer Turns Ratio Meter Substation Field Transformer Test Kit
Product Description
IEC60076 Z-type Transformer Turns Ratio Meter Substation Field Transformer Test Kit
Why choose GDBC-901B transformer turns ratio tester?
The ratio test not only verifies the nameplate value, but also checks whether the tap changer position corresponds to the actual voltage ratio, determines whether there is a turn to turn short circuit in the winding, and provides a basis for whether the transformer can operate in parallel. Two transformers are connected in parallel, and if the ratio deviation exceeds the limit, it will generate circulating current, increase heating, and in severe cases, may trigger protection actions. This experiment is listed as a routine item in the handover and preventive procedures, and the accuracy and reliability of the test data directly affect whether the equipment can be safely put into operation.
GDBC-901B turns ratio tester is designed around actual on-site usage requirements: three-phase voltage synchronous output ensures data consistency, multiple wiring modes cover conventional and special equipment, built-in battery power supply adapts to non power environments, automatic data storage and report generation simplify post organization work.
For teams that require frequent ratio testing, this is a practical tool that can improve on-site efficiency and data reliability.
Functions
Voltage conversion ratio test for three-phase/single-phase power transformers
Voltage ratio test of three-phase/single-phase voltage transformers
Three phase/single-phase transformer and transformer turns ratio test
Three phase power transformer group testing
Phase angle difference test for three-phase/single-phase voltage transformers
Automatic identification and testing of tap positions for on load tap changers
On site printing of test results
Upload test data to PC and generate WORD report
Test setup
Test result
| Parameter | Value |
|---|---|
| Turns ratio measurement range | 1 – 10,000 |
| Accuracy (1 – 1,000) | ±0.2% |
| Accuracy (1,000 – 10,000) | ±0.5% |
| Repeatability | Better than 0.05% |
| Vector group measurement range | 1 – 12 points |
| Phase angle measurement range | 0 – 360°, error <0.5° |
| Test voltage output | Three-phase simultaneous, AC 0-120V, max 200mA per phase |
| Test voltage waveform distortion | <1% |
| Excitation current measurement range | 0 – 200mA, error <1% |
| Connection modes | DY, YD, DD, YY, ZN |
| Data storage capacity | 200 sets |
| Battery capacity | 12V/15000mAH, >10 hours runtime |
| Charger input | AC 100-230V, 45-65Hz |
| Dimensions | 400×350×200mm |
| Weight | <10kg |
| Operating environment | 0 – 50°C, humidity <90% |
| Three phase voltage synchronous output, higher testing efficiency | |
| Instrument simultaneously outputs three-phase test voltage to the primary side of the transformer, synchronously applies three-phase high voltage, and synchronously samples low-voltage induced voltage. After completing the wiring once, click on 'Run' to calculate and display the three-phase transformation ratio, error, and group simultaneously. Compared to the single-phase sequential testing method, the phase to phase switching step is omitted, reducing the additional differences introduced by time-sharing measurement. |
| Supports five wiring modes, covering both conventional and specialized transformers | |
| Instrument offers five wiring options: DY, YD, DD, YY, and ZN, suitable for three-phase transformers of different connection groups. When testing Z-type transformers, choose the ZN method, and the instrument processes data according to the voltage phase relationship of this wiring type, without the need to consult formulas or modify external wiring. One instrument covers both conventional transformers and special equipment. |
| Built in lithium battery power supply, eliminating the trouble of finding sockets on site | |
Instrument is equipped with a 12V/15000mAH lithium-ion battery, which can work continuously for more than 10 hours when fully charged. Outdoor box mounted transformers, remote pole mounted transformers, or situations without power sockets can all be used normally. The battery level is displayed as a percentage on the independent indicator screen of the panel, and the remaining battery level is clear at a glance. |
| Test parameter preset, data automatically collected | |
| Before the experiment, input the device number, rated primary/secondary voltage, wiring method, voltage regulation ratio and other information at once. After shifting the multi tap transformer, continue testing, and the results will be automatically stored in order with clear data correspondence. Built in 200 sets of data storage capacity, supporting on-site printing of results. Connect to the computer through a USB interface and generate a WORD format test report using the accompanying software, eliminating the need for manual input and layout. |
Handover test and preventive test of transformers in substations and power plants
Factory inspection of transformer manufacturers
On site debugging of power installation companies
Daily maintenance and testing of electrical equipment in industrial and mining enterprises
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Ratio and phase angle difference testing of voltage transformers
Contact Us
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