BZC-20A Transformer DC Resistance Tester

Product Introduction

The DC resistance tester is mainly used for measuring the DC resistance of large and medium-sized transformers, engines, motors, etc. The instrument is set with multiple current levels to meet various measurement needs.
In order to meet the need for rapid measurement of transformer DC resistance,BZC-20A Transformer DC Resistance TesterAdopting new power technology, it has the characteristics of small size, light weight, high output current, good repeatability, strong anti-interference ability, and protection function. The whole machine is controlled by a high-speed microcontroller, with a high degree of automation and automatic discharge and discharge alarm functions. The instrument has high testing accuracy, easy operation, and can achieve rapid measurement of transformer direct resistance. The DC resistance of transformers is a necessary measurement item for semi-finished and finished products in transformer manufacturing, factory testing, installation, major repairs, changes to tap changers, handover testing, and preventive testing by power departments. It is possible to check the welding quality of the winding joints and whether there is a turn to turn short circuit in the winding. It can also detect whether the various positions of the voltage tap changer are in good contact, whether the actual position of the tap changer matches the indicated position, whether the lead wire is broken, and whether there are broken wires when multiple wires are wound together.

Product features

1、 Functional Features
1. The whole machine is controlled by a high-speed microcontroller, with a high degree of automation and easy operation.
2. The instrument adopts a new power technology, with multiple current levels and a wide measurement range, suitable for measuring the DC resistance of large and medium-sized transformers.
3. Protection function *, can reliably protect against the impact of back electromotive force on the instrument, and has more reliable performance.
4. It has an audible discharge alarm, clear discharge indication, and reduces misoperation.
5. Intelligent power management technology ensures that the instrument operates in a low-power state, effectively saving energy and reducing heat generation.
6. Seven inch high brightness touch color LCD, clear display under strong light, full touch screen operation, free switching between Chinese and English.
7. The instrument comes with a perpetual calendar clock and power down storage, which can store 1000 sets of test data for easy access at any time
8. The instrument is equipped with RS232 and USB interfaces, which can communicate with computers and store data on USB drives
9BZC-20A Transformer DC Resistance TesterComes with a panel type micro printer that can print measurement results in Chinese
10. The instrument can use Android phone or tablet, follow WeChat official account, download special APP, control the instrument through special software, store and upload test data for easy reference.

2、 Technical parameters

Test current:<20mA, 1A, 2.5A, 5A, 10A, 20A
Measuring range:
100 a
10 A
1mΩ～4Ω 5A
2mΩ～8Ω 2.5A
5mΩ～20Ω 1A
10Ω-20KΩ <20mA
Accuracy: ± (0.2%+2 words)
Small resolution: 0.1 μ Ω
LCD display: Resistance display with 4 significant digits
Data storage: 1000 sets
Environmental temperature: 0 ℃~40 ℃ Relative humidity:<90% RH, no condensation
Power supply: AC 220V ± 10V, 50Hz ± 1 Hz fuse tube 5A
High power consumption: 500W
Dimensions: 400 × 225 × 350 (mm)
Weight: Main unit 15.1KG Wire box: 5.75KG