HGY Transformer Characteristics Comprehensive Tester User Manual
HGY Transformer Characteristics Comprehensive Tester is specially designed for relay protection professionals to test the volt-ampere characteristics, transformation ratio, and polarity of current transformers. It can also be used for transformer polarity discrimination tests. It is a multifunctional test instrument with a high performance-price ratio.
This instrument adopts a booster with low-consumption materials and special winding methods. A microprocessor performs data acquisition, analysis, and storage. A built-in micro printer can print test data and curves. When measuring CT transformation ratio, it can automatically calculate the ratio value. One person can complete all test work. This machine has the advantages of light weight, portability, and easy operation. Its performance is unique and it is the current instrument.
1. HGY Transformer Characteristics Comprehensive Tester Technical Parameters
1. Input voltage: AC 220V or 380V, 50HZ, automatic identification of input voltage.
2. Working environment temperature: 0～40℃
3. Output voltage:
When input AC 220V, output 0～550V;
When input AC 380V, output 0～1000V.
Current: maximum instantaneous current is 240A when measuring transformation ratio.
When testing volt-ampere characteristics, it is 1.
4. Digital voltmeter measurement range: 0～999.9V; resolution: 0.1V.
When used as current display: 0～999.9mA; resolution: 0.1mA.
5. Digital ammeter measurement range: 0～1 (240A), resolution: 0.01A.
6. Error: I≤3%, U≤3%.
7. When measuring CT transformation ratio, it can automatically calculate the ratio value and print the data and calculation results.
8. When testing volt-ampere characteristics, it stores and prints 20 sets of current and voltage values and the volt-ampere characteristic curve.
9. External dimensions: length×width×height = 470×340×260mm3
10. Weight: 21kg.
2. HGY Transformer Characteristics Comprehensive Tester Panel Diagram (Figure 1) and Description
Figure 1
1——Voltage acquisition input terminal, connect to the remote end of AC output.
2——AC current output, connect to CT secondary side.
3——Output fuse (1).
4——Output switch.
5——Voltage regulation.
6——Four-digit LCD screen voltage display (V) [also used for CT secondary side current display (mA) during transformation ratio test]
7——Four-digit LCD screen current display (A) [also used for CT primary side current display (×10A) during transformation ratio test].
8——Printer.
9——Data reset button.
10——Data storage button.
11——Print button.
12——Reset indicator light.
13——Storage indicator light.
14——Transformation ratio current output, connect to CT primary side.
15——Transformation ratio current input, connect to CT secondary side.
16——Switch for volt-ampere characteristic test and transformation ratio test.
17——Polarity discrimination input, connect to CT secondary side.
18——Polarity discrimination output, connect to CT primary side.
. 19——Polarity discrimination current display meter, zero position when not testing.
20——Polarity discrimination on/off button, press to turn on, release to turn off.
21——Whole machine grounding socket.
22——DC fuse (1A).
23——Power socket.
