Prok Devices Private Limited
Prok Devices Private Limited
Rajaji Nagar, Bengaluru, Karnataka
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Static Earth Fault Relay

Leading Manufacturer of static earth fault relay, static efr, definite time / instantaneous static earth fault relay and definite time & instantaneous static efr from Bengaluru.
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Static Earth Fault Relay
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Static Earth Fault Relay

Understanding the demands of customers as a manufacturer, supplier, exporter and trader, we are providing Static Earth Fault Relay. Our offered relays are current sensing devices that are tropicalized and manufactured employing advanced machinery and technology. Can be installed with various earth fault protective schemes, the relays offered by us finds their application in generators, alternators, transformers and feeders.

Features:


  • Static Device
  • Compact, Reliable with Aesthetic Value
  • Rugged, Robust and Tropicalised design
  • Consistent repeat accuracy
  • Wide Current Operating range
  • LED Indication for Healthy & Fault Status
  • Manual Reset & Low Burden on CT Secondary

Specifications:
Auxiliary Voltage110V/230V/415V/550V, AC 50 Hz 48/110/220 VDC
Frequency50Hz
Neutral or Summation CT Rated Current-In1A or 5A (Factory Set)
Burden on CT<0.2VA
Sensitivity Settings Plug Setting Range(PS)`PS Range : (10%-80%) of In. in steps OF 10%
Definite Time Settings in Sec0.15 to 3.0 Sec (6 Steps)
Steps : 0.15, 0.25, 0.50, 1.00, 2.00 and 3 Sec.
IDMT CurvesNot Applicable
Time Setting Multiplier (TMS)Not Applicable
High Set Enable/Disable OptionNot Applicable
High SetNot Applicable
Time for High Set OperationNot Applicable
CBCT / ZCT / ZCT / ZCT / ZCT size for EFRCircular: 40 mm,65 mm,100 mm,150 mm,200 mm,250 mm and 300 mm with Secondary 1A only
Contact Capacity (A)8A-250V AC
8A-30V DC
Contact typeNC-C-NO One change over (optional - Two change over)
Operating Temperature (°C)-5°C to +55°C
StandardIEC - 60255
Relay Setting ModeSetting through DIP switch: PS and Definite time
Display/IndicationLED for indicating the status: Green LED-Healthy and Red LED-Trip
Relay Test FacilityAvailable through push button
Mounting TypeFlush Din/Surface
Dimensions in mmFlush: 96 x96 x70, Din: 75x95x75 (W x H x D)
Panel cut out in mm (Flush type)90x90+0.1 mm

Applications:

  • Earth Fault Protection for Generators/Alternators
  • Earth Fault Protection for Transformers and Feeders

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STATIC EFR
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STATIC EFR

Prok dv's make Definite Time / Instantaneous Static Earth Fault Relay (EFR) is a current sensing device which is tropicalised, professionally designed and tested for protection of Generators, Transformers and Feeders. Prok dv's make Static Definite Time & Instantaneous Earth Fault Relay (EFR) can be employed with various earth fault protective schemes.

Yes! I am Interested
Request CallBack
Definite Time / Instantaneous Static Earth Fault Relay
Ask For Price

Definite Time / Instantaneous Static Earth Fault Relay

Prok dv's make Definite Time / Instantaneous Static Earth Fault Relay (EFR) is a current sensing device which is tropicalised, professionally designed and tested for protection of Generators, Transformers and Feeders

Yes! I am Interested
Request CallBack
Definite Time / Instantaneous Static Earth Fault Relay
Ask For Price

Definite Time / Instantaneous Static Earth Fault Relay

Prok dv's make Definite Time / Instantaneous Static Earth Fault Relay (EFR) is a current sensing
device which is tropicalised, professionally designed and tested for protection of Generators, Transformers and Feeders.

Yes! I am Interested
Request CallBack
Definite Time & Instantaneous Static EFR
Ask For Price

Definite Time & Instantaneous Static EFR

Prok dv's make Static Definite Time Instantaneous Earth Fault Relay (EFR) can be employed with various earth fault protective schemes, which are explained in brief with figures. The magnitude of the earth fault current depends on the fault impedance and invariably the fault impedance for earth fault is higher than that for phase faults, hence the earth fault current is low compared to the phase fault currents. The fault impedance depends on the system parameter and also on type of earthing.

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