Monitoring Relay RNPP-301->Overload Relay

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Monitoring Relay RNPP-301

Category :

Electronic and electrical->Electric Machinery->Overload Relay

Product Specification

Size	90x65x70 mm
Color	white
Packing	carton boxes (or special requirement needed)
Minimum Order	50 pcs
Payment Term	T/T or any other
Delivery:	usually not more than 30 days
Price per unit:	35 USD (EXW Saint-Petersburg)

Product Detail

The relay is designed for the essential loads. The relay has six independent base parameter controls:
four independent adjustments for essential parameters: the minimum voltage, the maximum voltage, peak phase voltage imbalance value, automatic reset delay for the minimum voltage;
the minimum voltage threshold;the maximum voltage threshold;
the phase/line voltage imbalance value;
the time delay for U=Umin;
trip delay covering all types of the mains voltage faults;
the automatic reset delay.
The relay provides:
RMS phase/line voltage trip;
mode operation switching from the phase voltage monitoring to the line voltage monitoring;
the magnetic starter terminals control possibility;
the separate indication for each type of faults. The mains voltage indication;
self-powered by the three-phase voltage to be monitored (save operation when at least one phase is present (in the three-phase systems with neutral).
Three-phase relays are applicable for three-phase receiver protection against untolerable variations in mains voltage, against phase loss and phase imbalance, phase coincidence and incorrect phase sequence. They are efficiently adapted for protection of refrigerating and air-conditioning installations, compressor plants and other equipment with an electric motor load. They are also used in the devices that call for continuous monitoring of mains voltage existence/ quality and all-the phases-presence, e.g. in the automatic throw-over circuit-breakers.


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