| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1year |
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Relay Protection Test Item Index
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Relay protection type |
Test Item |
Proposed test module |
Remarks |
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Signal relay |
Corresponding test items
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DC Test
AC and DC Test
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If the intermediate relay is required AC/DC hybrid input, please test in 'The AC And DC Test 'module. If Rated current of the signal relay is too small, please use the voltage loop output of tester to do experiments.
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Time relay |
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Intermediate relay |
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Coincidence relay |
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Other DC voltage and current relay |
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Current relay |
Corresponding test items
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AC Test
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The sequence component relay can be tested in the special sequence module of 'AC Test'. The inverse time relay can be tested in the "It characteristics" module.
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Over (under) voltage relay |
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Sequence component relay |
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Synchronous check (or phase comparison) relay |
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Inverse time current relay |
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Differential relay
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DC magnetic feature |
Differential Relay, Differential Harmonic, AC/DC Test, Harmonic Test
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Please refer to 'Appendix 5' for correct wiring in the test
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Harmonic braking feature |
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Proportional braking feature
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Differential Relay, AC Test |
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Power (directional) relay |
Corresponding test items
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Power Direction &Impedance, AC Test
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Before testing the power (direction) relay, the type of connection and the action boundary of the protection should be determined in advance.
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Impedance relay |
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Synchronous relay |
Corresponding test items |
Synchronization Test, AC Test |
UA, UC of tester is fixed as the system side and the side to side voltage output for 'Synchronization Test' module. |
|
Frequency relay |
Corresponding test items |
High-Low Frequency Test |
When the 'automatic frequency conversion' method is chosen in the single machine, the frequency slip value can be measured. |
ABOUT US
Huazheng, established in 2008, is a enterprise which is engaged in the research, development,
sale and service of transformer tester, transformer oil tester, relay tester, high voltage tester, circuit breaker tester. We are a cooperative supplier of the State Grid of China, and we have also
established cooperative relationships with customers in countries and regions such as USA, Brazil, Chile, Vietnam, Indonesia, Korea, Turkey, Dubai, South Africa, etc.We have obtained ISO and
CE certificates. And developed impeccable inspection organization to make sure all of our
products quality comply with international standards(like IEC/ASTM/EN).
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