Project Description
Product Features:
The current transformer error field tester adopts the recursion method to measure the current transformer error, which is convenient for the on-site verification of the metering device
The current transformer error field tester has a standard voltage transformer equivalent to the same transformation ratio of the current transformer under test. Its accuracy can reach 0.02 level, which is equivalent to a 0.05S current transformer. The transformation ratio and no-load error of the converter. Then combine the test results of impedance and admittance to calculate the error of the transformer
Adopt the different frequency power supply test close to the power frequency to prevent on-site power frequency electromagnetic radiation and series interference.Directly rectify the field data and judge whether it is qualified or unqualified.
The LTHG-2003 current transformer field calibrator is developed with high-end testing technology, large-scale electronic circuit design and in line with relevant national regulations.
It solves the problems of high working intensity and cumbersome operation for field verification of current transformers and voltage transformers.
At the same time, the product is reliable and powerful.
Wide measurement range, can measure current transformers with standard transformation ratios and current transformers with non-standard transformation ratios
The accuracy of the transformer calibrator attached to the instrument can be verified by the transformer calibrator calibration device
The weight of the whole machine is less than 5.0Kg, and the volume of the whole machine: 323mm×275mm×135mm. Small size, light weight, and really easy to carry
| Measurement error | ||
|---|---|---|
| Rated current | ratio difference (±%) | angle difference (±′) |
| 5% | 0.1 | 4 |
| 20% | 0.05 | 4 |
| 100% | 0.05 | 2 |
| 120% | 0.05 | 2 |
| 200% | 0.05 | 2 |
| stability | 0.05 | 2 |
| Range of transformation ratio: | 5A/5A～25000A/5A（5A/1A～5000A/1A） | ±0.2% |
|---|---|---|
| Error measurement range: | 5A/5A～5000A/5A（5A/1A～5000A/1A） | |
| Accuracy: | ±0.05% |
| DC Resistance: | 0.0-0.1Ω | ±3％ | 0.1-50Ω | ±1% |
|---|---|---|---|---|
| CT secondary load: | 1Ω－25Ω | ±2％ | ||
| Working conditions: | AC 220V ±10%/50Hz | ±2% | ||
| Ambient temperature: | 0－40℃ | |||
| environment humidity: | <85% at 25℃ | |||
| Total Weight: | ≤5Kg | |||
| Whole machine volume: | 33cm×28cm×14cm |
