Rapid Pressure Rise Relay

Rapid pressure rise relays are designed to respond to rates of pressure change above predetermined safe limits set by the transformer manufacturer.

The purpose of this device is to detect a fault in a transformer quickly, while the pressure is still increasing and before the destructive effects of overpressure triggers the pressure relief device. The RPRR switches a set of contacts to indicate that it has detected a fault.

The RPRR is designed not to respond to normal pressure variations caused by temperature variation, mechanical shock and vibration or pump surges.

Options:
- Horizontal and vertical application

- Oil and gas

- Threaded and flange mounting.
- Plug-in connector & terminal box connections

- C5M option