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.

Applications:

• Earth Fault Protection for Generators / Alternators.
• Earth Fault Protection for Transformers & Feeders.

Features:

• Consistent Reliability with Accuracy.
• Fixed or Variable Current sensitivity by Dip switch selection.
• LED’s for visual indication of Fault.
• High Barrier connector at rear for easy termination and safety standards.
• Tamper proof polycarbonate cover in the front.
• Test & Reset Facility for Testing Healthiness of the relay.

Applications:

• Frame Leakage protection for L.T. Control panels and Switch boards.
• Earth Leakage protection for Feeders / Motors / Generators / Transformers / Mobile Operating Equipments.
• Protection for hazardous sensitive environments like Oil Refineries / Cement Plant / Steel Plant / Chemical Platforms / Pulp Industries and General Electrical Distribution.
• Protection for Mining & Control Engineering.

Features:

• Digital Microprocessor / Microcontroller based compact design.
• Continuous monitoring and display of set value and measured value of leakage Current.
• 8 character 2 line LCD displays with back-lit.
• Test & Reset facility.
• CBCT / ZCT connection monitoring facility.
• True RMS measurement of leakage Current.
• Trip Circuit Failure indication.
• Immune to harmonics and transients.
• Serial RS 485 communication port with Modbus Protocol (optional).
• Tropicalized and Rugged design.
• Transducer Output (4 mA-20mA) (optional).
• External  Test, Reset, Fault & Healthy indication suitable for Mining application.

• Frame leakage protection for LT Control panels and Switch boards.
• Earth Leakage protection for Feeders / Motors / Generators / Transformers / Mobile Operating Equipments.
• Protection for hazardous sensitive environments like Oil  Refineries / Cement Plant / Chemical Plant / Steel Plant / Pulp Industries and General Electrical Distribution.
• Protection for Mining and Control Engineering.

Features:

• Compact.
• IDMT (4 IEC curves), Definite time & Instantaneous.
• Wide setting ranges.
• Fully digital acquisition & processing of data.
• Wide operating Voltages.
• LCD display of operated Current & Fault Current.
• Rugged and Tropicalized design.

Applications:

• Earth Fault Protection for Generators / Alternators.
• Earth Fault Protection for Transformers & Feeders.

Static Under Voltage UV and Over Voltage OV Relay VD Series

Prok dvs make static over voltage (ov) and under voltage (uv) relay with phase failure (single phasing) and phase reversal relay for protection against under voltages, over voltages, phase failure, phase reversal and unbalance voltages caused due to transients such as inductive load switching and commutation voltage spikes etc.

Prok DVS make static over voltage (ov) and under voltage (uv) relay with phase failure (single phasing) and phase reversal relay available in five models i. E. Vd-02, vd-03, vd-04, vd-05 and vd-06 for various applications. They are provided with fixed or variable voltage settings, auto reset, definite time delay fixed or variable settings.

Features:

• Solid state circuitry.
• Negative phase sequence voltage detection.
• Definite fixed or variable time delay.
• Low power consumption.
• Auto reset.
• Fail safe system.
• Led indication for healthy and fault indication.
• Din rail mounting.

• Protection of synchronous and induction motors of any hp rating.
• Protection of generators, AMF switch boards.
• Transformer feeder panel.
• Distribution boards.
• Voltage regulators.
• Protection for ups and single phase applications.

Features:

• True RMS measurements.
• Accuracy class 1.0.
• Confirms to IEC 62052-11, 62053-21.
• Compact size & Ideal for Industrial environment.
• Accurate reading for Balanced and Unbalanced loads.
• Gives tamper indication.
• Accurate under rapid Current fluctuation.
• No mechanical wear and tare.
• Accurate, Reliable and Tropicalized design.
• No Auxiliary Supply is essential.

Applications:

• Electrical panels - HT and LT panels.
• Generator panel and Captive Power plant.
• Furnaces and Ovens.
• Special OEM application.
• Test benches and Laboratory equipments.