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> Qualitrol rapid pressure rise relay 900-003-01
Qualitrol rapid pressure rise relay 900-003-01
New/used (very clean and no oil residue makes me think its never been used) , old stock. Qualitrol Rapid Pressure Rise Relay 900-003-01.
The Qualitrol Rapid Pressure Rise Relay (RPRR) is used worldwide as the
standard to provide transformer protection signals to the protective relay
system during the occurrence of a potentially destructive overpressure event.
The device looks at the rate of pressure increase, and sends a signal if a rate
exceeding a safe threshold is detected. The 900 is designed for mounting
