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HZDW-33 Integrated Transformer Test System

Summary

The transformer comprehensive test system complies with relevant national standards including GB 1094.2, GB/T 501, GB/T 4776, GB/T 5169, and GB 4285.

The test bench is primarily designed for DC resistance and turns ratio testing of power transformers and distribution transformers, as well as no-load and load characteristic tests, induced overvoltage withstand tests, power frequency withstand voltage tests, and temperature rise tests.

The measurement section of the system is controlled by a high-grade single-chip microcomputer. Test data for parameters such as no-load and short-circuit are sampled synchronously by the microcontroller, eliminating errors associated with voltage, current, and power meters, as well as manual calculations that occur in traditional testing methods.

Characteristic

The transformer test system integrates test wiring, display, data collection, analysis and processing, measurement control, storage, printing, and protection into a single unit. The entire test process can be fully automated, offering outstanding advantages in both efficiency and precision.

The system is fully operated by computer, displaying parameters such as three-phase voltage and current. All test data are displayed in real time (locked) on the screen, eliminating errors caused by parallax, conversion, calculation, and other factors during the testing process, thereby making the test more accurate.

In particular, the system completely resolves the difficulty of operators having to read multiple meters and record multiple sets of data simultaneously, ensuring the accuracy and reliability of test data.

Data processing is automatic storage, all the test data are filled in the corresponding database in real time, to avoid the process of manual transfer and recording, to ensure the authenticity and reliability of the data.

Product Parameter

DC resistance test

1. Technical indicators

output:

High pressure CH 1:5A,1A,0.1A, 0.01A

Low-pressure CH2:20A, 10A, 5A, and 2A

range:

(High pressure CH 1- -5A): 0 Ω -- 4 Ω (high pressure CH 1- -1A): 20m Ω-- 20 Ω

(High pressure CH1---0.1A): 200m Ω -- 200 Ω

(High pressure CH1---0.01A): 2 Ω -- 2000 Ω

(Low pressure CH2- -20A): 0 Ω -- 0.1 Ω

(Low pressure CH2- -10A): 2m Ω -- 0.4 Ω

(Low pressure CH2- -5A): 4m Ω -- 0.8 Ω

(Low pressure CH2- -2A): 10m Ω -- 2 Ω

Accuracy: (high pressure CH 1): 0.2% ± 1 μ Ω

(Low voltage CH2): 0.2% ± 0.2 μ Ω

Minimum resolution: 0.1 μ Ω

Data interval: 10 seconds, 30 seconds, 60 seconds

Operating temperature: -20~40℃

Ambient humidity: 80% RH, without condensation

Working power supply: AC: AC220V± 10%, 50Hz ± 1Hz

Volume: length 410mm width 440mm height 210mm

Net weight: 15.7kg

Turns-ratio group test

Power analyzer

working power supply:

Operating voltage: 85-264V (AC) / 120-300V (DC)

Frequency: 47-440 Hz 3, capacity: 0-40VA

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