产品名称：PGD1 多功能相故障继电器

PGD1 多功能相故障继电器

Introduction: It is a Negative Sequence Voltage Sensing Phase Failure Relay with Water Level Control. It is best suitable for Dry run & Phase Loss Protection of 3 phase Submersible Pumps or open well pumps loads only. It offers protection against Phase Failure, Phase Unbalance, Phase Sequence Reversal, Under Voltage & Over Voltage faults. It is useful for incoming side, Mains Supply monitoring, General voltage faults, AMF/Transfer Switch Panels & Pump Control Panels. It is available in DIN Rail mounting enclosure.

Features: · Monitors all 3 phases of Voltage Supply. · Water Level Sensing by Single SS electrode. · Built-in Auxillary Voltage. · Auto Reset. · Sleek DIN Rail mounted enclosure.

Application Areas: NA

Technical Specifications:

Sr. Parameter Specifications 1 Supply Voltage System 415 V AC 3 Phase ±20%; Auxiliary Built-in 2 Output Contacts 1 CO 3 Trip Setting (Volts) Phase unbalance 40 V ± 6 V (fixed); Under Voltage N.A.; Over Voltage N.A.; Water Level Single Level Electrode 4 Trip Time Delay On Phase Failure 3.5 secs ± 1.5 sec.; On UV/OV N.A. 5 Resetting Mode   6 Weight 320 gms. 7 Dimensions (mm) Overall (L x W x D) 76 x 30.5 x 117.5; Mounting (L x W) 68 centre to centre