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产品名称: PFV3多功能相故障继电器



PFV3多功能相故障继电

Introduction:
It is a Phase Failure with Under & Over Voltage Relay. It is best suitable for protection of balanced 3 phase loads or 3 phase Motor / Pump loads only or for monitoring 3 phase MAINS supply. 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 11 pin Plug-in base mounting & flash mounting enclosure.
Features:
· Under & Over Voltage (Adjustable).
· Monitors Aux.Voltage for Under & Over Voltage.
· Monitors all 3 phases of voltage for severe unbalance & phase loss.
· External Aux.Supply.
· Auto Reset.
· Panel Flush Mounted Enclosure.
Application Areas:
Measures 3-Phase supply for Unbalance Voltage, Loss of Phase, Phase Sequence, Under Voltage & Over Voltage. Best suitable for balance 3 phase loads or motor loads only. Phase failure &UV/OV Relays can be best used for a host of Auxiliary Systems & Plant control panels & machinery.
Technical Specifications:
Sr.
Parameter
Specifications
1 Supply Voltage System 240 / 380 / 400 / 415 V AC ± 20%, 50 / 60 Hz; Auxiliary Built-in
2 Output Contacts 1 CO
3 Trip Setting (Volts) Phase unbalance 40 V ± 6 V (fixed); Under Voltage 190 V (fixed); Over Voltage 260 V (fixed); Water Level N.A.
4 Trip Time Delay On Phase Failure 3.5 secs ± 1.5 sec.; On UV/OV 10 secs.
5 Resetting Mode
6 Weight 430 gms.
7 Dimensions (mm) Overall (L x W x D) 96 x 96 x 76 (flush mounting); Mounting (L x W) 92 x 92 (cutout)

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