Zhengzhou Great Electric Co.,Ltd.
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0.02 Class 60A CT PT Test Equipment Low Current CT Test System
System Configuration
Low-Current CT Tester
Two-Stage Standard Current Transformer
CT Test Power source
Technical Parameter
Low-Current CT Tester (Bridge)
| Display: | LED |
| Measure item: | Ratio errors & Phase errors of the low-Current CT |
| Rated current: | 1mA, 2mA, 5mA, 20mA, 50mA |
| Multiplier: | 0.5, 1, 1.5, 2, 3 |
| Accuracy class: | ±2% |
| Operation range: | (1%-200%).In |
| Frequency: | 50/60Hz |
| Ratio error range: | ±0.0001% ~ ±19.99%(Three positions: 1.999‰, 19.99‰, 199.9‰) |
| Minimum resolution:0.0001%. | |
| Phase error range: | 0.01' ~ ±900'(three positions: 9.00', 90.0', 900') |
| Minimum resolution: 0.01' | |
| Alarm Function: | Provided the sound & light alarm function when the polarity abnormal or ratio inconsistent. |
| Provided load for object CT: | 0Ω, 5Ω, 10Ω, 20Ω, 30Ω, 50Ω, 100Ω, 200Ω, 250Ω, 500Ω (COSφ=1.0) |
| Input load on standard side: | 10Ω (COSφ=1.0) |
| Communication Interface: | Provided the RS232 serial communication interface |
| Power supply: | AC 220V±10% |
| Power consumption: | < 20VA |
Two-Satge Standard Current Transformer
| Frequency: | 50Hz/60Hz |
| Primary Current (A): | 0.6,1,1.5,2.5,3,4,5,6,7.5,8,10,15,20,30,50,60 |
| Secondary Current (mA): | 1, 1.5,2,2.5,3,10/3,4,5,20/3,7.5,8,10,15,50/3,20,25,30,100/3,50 |
| Rated Current Ratio: | Arbitrary combination of Pri,Current and Sec.Current |
| Accuracy Class: | 0.02% |
| Operation Range: | (5%-300%).In |
| Secondary Burden: | 10Ω |
| Power Factor: | COSΦ=1.0 |
| Voltage Level: | AC 600V |
| Insulation: | Air |
| Operating Condition: | Temperature: -5 oC ～ +40 oC |
| Relative Humidity (RH): up to 85% (max 90%) | |
| Dimension (mm) : | 460x380x160 |
| Weight ( kg ): | ～15kgs |
CT Test Power Source
| Input Voltage: | AC 220V±10% 50/60Hz |
| Output Current: | AC 5A, 50A, 100A |
| Rated Capacity: | ～500VA |
| Output Voltage: | Provided the Coarse adjustment & Fine adjustment |
| Adjustment Model: | Manual adjustment |
Feature
1) high accuracy and stability
2) specially used for test of low current CT
3) small size and weight, suitable for carrying
4) operation mode: manual
5) ratio error test, phase angle test, polarity test
Optional design for bridge