Microprocessor-based Protection Equipment
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Product Details
The QBZ-IA microprocessor-based protection equipment is a universal time overcurrent and earth fault protection device intended for use in medium-voltage systems, either with an isolated/compensated neutral point or for networks with a resistance-earthed neutral point.
Technical Parameters
No. | Item | Parameters |
1 | Auxiliary Power Supply | 220V AC/DC |
2 | Power Consumption | 3W in stalble mode or 5W in action mode |
3 | Output Relay Capacity | 250V AC/1500VA/continuous current 6A |
4 | Rated Current | 5A |
5 | Rated Frequency | 50Hz |
6 | Power Consumption In Current Circuit | 0.1VA |
Main Features
Definite time overcurrent relay.
Inverse time overcurrent relay with selectable characteristics.
Circuit breaker failure protection.
Up to 8 fault event records with time tag.
Very large range of setting value,accurate measure value and time setting step.
Setting value with password control.
User-defined password.
Wide voltage range of AC/DC auxiliary power supply.
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