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voltage relay

Definition

The appropriate product category Measuring / Motor Protective Relays: A relay that detects when the voltage in an AC circuit reaches a preset voltage. There are two basic types of voltage relay operation: overvoltage detection and undervoltage detection. Voltage relays are used to detect rapid increases in voltages due to generator failure, low voltages caused by power interruptions or short circuits, etc.

Glossary of Industrial Automation

Power Supplies / In Addition
- Measuring / Motor Protective Relays
  - voltage relay

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