Basler Electric Series PRP320 overview
Adjustable power factor trip level Adjustable time delay Operates on 120, 208, 240 or 480 volts 3 reset modes: local manual, remote manual and automatic Resets ...
Product details
Manufactured byBasler Electric
Product groupClass 300 Equipment
Key FeaturesAdjustable power factor trip level Adjustable time delay Operates on 120, 208, 240 or 480 volts 3 reset modes: local manual, remote manual and automatic Resets with input voltage interruption N.O. and N.C. relay switching contacts available Low input burden Reliable solid state design Ruggedly constructed Available from stock
Typical ApplicationsIncreased loading or decreased excitation can cause a synchronous motor to pull out of synchronization with its rotating field, resulting in high line current and possible physical damage to the motor. To protect synchronous motors against such conditions, Basler Electric Company has developed the Model PRP 320 Synchronous Motor Pullout Relay for 60 Hz applications, and the Model PRP 340 Synchronous Motor Pullout Relay for 50 Hz applications.
DescriptionThe PRP 320's output relay actuates when the power factor decreases and remains below a preset value for a preselected period of time. The relay actuation can be used to remove a synchronous motor from the line or to operate an alarm. The trip point of this relay can be set from 0.95 to 0.80 lagging power factor and the time delay can be set from 0.25 to 1.5 seconds. Both controls are front panel mounted for convenient access. Once the relay has tripped, it can be locally reset using a pushbutton switch or it can be manually reset from a remote location if a pushbutton switch employing normally closed contacts is installed. The device can also be connected to automatically reset when normal operating conditions are restored. An external jumper controls selection of the reset mode. Regardless of the reset mode selected, the PRP 320 will always reset with an interruption of input voltage. The solid state circuit employs quality components selected through conservative derating to assure long-term trouble-free performance. The unit is assembled in a rugged, flanged steel case and is easily installed.
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Manufactured by
Basler Electric
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Product group
Class 300 Equipment
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