Protective Relays

Product Details:

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.ŸTransducer Output- (4 mA-20mA) (optional).
• External  Test, Reset, Fault & Healthy indication suitable for Mining application

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.

Product Details:

Features:

• Microcontroller based design
• Wide setting ranges 
• Auxiliary voltage 85 -275 AC/DC
• Rugged and Compact design 
• 8 character back lit LCD display 
• Display of the fault  current 

Product Details:

Features :

• True RMS measurements
• Accuracy class 1.0
• 2 –Line, 16 Char back-lit LCD display.
• Display of line currents ( Ir, Iy, Ib)
• Pick-up and tripping of overload through the LED indication
• CT ratio-Site selectable from 5/5 to 3000/5A for 5A
• Site selectable from 1/1 to 600/1A for 1A
• Compact and ideal for an industrial environment
• Display of Loss of phase & unbalance trip
• 2 Set of potential free output contacts

Product Details:

Features:

• Three phase , low-set, non - directional Over current relay with inverse definite minimum time (IDMT) or definite time characteristics
• Three phase, high-set, non-directional Over current relay with instantaneous or definite time function
• Low-set non -directional Earth fault Relay with inverse definite minimum time (IDMT) or definite time characteristics
• High-set non-directional Earth Fault Relay with instantaneous time or definite time functionŸModular Integrated Draw Out System for field adaptability and tropicalised design (MIDOS)
• Password protection
• 2 line 16 characters industrial grade LCD with back-lit module for numerical display of setting values and measured values which is user friendly
• Trips for default/previously selected curve if the fault occurs during settings of the relay
• Membrane key pad for easy operation, dust proof front panel
• Enabling /Disabling o f High-Set
• LED indications for power , pick-up, phase fault trip or Earth Fault trip or IDMT and High-set
• RS-485 communication port with modbus protocol
• Relay test facility with relay trip & without relay trip
• Separate heavy duly output contacts provided  or time delayed phase fault with high-set  and time delayed Earth Fault with high-set

Product Details:

Focusing on the quality of the products, we are engaged in manufacturing, supplying, exporting and trading AC Voltage Relay. These are voltage monitoring and supervision relay for the polyphase system that are extensively used for monitoring both under voltage and over voltage conditions.

Features :

• Site selectable system voltage
• Continuous display of the measured voltage parameter
• 16 character 2 line LCD display with back-lit
• Accurate reading for balanced and unbalanced load
• The wide range of auxiliary input for both AC & DC
• Independent contacts for both Under & Overvoltage
• Self-reset & site selectable reset gap
• Built-in fixed instantaneous Under & Overvoltage highest trip
• User-friendly setting modes using keypads
• Low power consumption
• Tropicalized design using microcontroller & Ideal for industrial environment

Product Details:

Prok dv's make Digital microprocessor/microcontroller based Earth Leakage Relays (ELR) with Core Balance Current Transformer (CBCT / ZCT) are used to detect leakage currents in electrical power systems.

ELR transmits a signal to activate the trip coil of the MCCB/ACB/OCB/CONTACTOR in the event of earth leakage resulting in automatic isolation of the load. ELR have been widely used and accepted because of field adaptability and are economic.

Additional Information:

• Delivery Time: 1-5 Days in Tamil Nadu

Product Details:

Features :

• Current ratings 1 Amps to 63Amps continuous duty when the load on EB/DG
• While monitoring the Generator supply, it allows only a limited load and functions as Load limiter as per desired current (Factory set)
• Whenever Load Current exceeds the present limit, power is automatically switched off and on automatically after 9 seconds and trips again if the overload still exists this cycle(3sec ON & 6sec OFF) is repeated every 9 sec, ACCL will enter into LOCKOUT mode after 5 ON & OFF cycles if overloading of DG still exists.
• On resumption of EB mains, ACCL automatically changes from DG to EB and allows full current. ACCL comes out of LOCKOUT mode when EB resumes
• The unit can be Reset manually by RESET switch
• The ON/OFF cycles can be set according to customer requirements (optional)
• If the unit has entered LOCKOUT mode due to OV/UV, the unit has to be reset manually.

Product Details:

Features :

• Microcontroller based, hence accurate and precise.
• Protection of Generator / Prime movers against reverse power
• Visual indication of power, pick-up and relay tripping.
• Display of reverse power on the LCD.
• Continuous display of sensing voltage, current, frequency and power factor with the lead/lag indication.
• Wide Auxiliary voltage range from 85–275V AC/DC.
• Cost-effective and highly reliable compact design.
• Test Facility, allowing the user to check the NO and NC contacts of the relay.

Product Details:

Features:

• Visual 7 segment digital display.
• On/off switch with lamp indication provided for power supply status.
• Potentiometer provision for trimming to compensate the lead resistance.
• Panel mounting with aesthetic value.
• Robust & Rugged i.e. suitable for industrial environment.
• Greater degree of accuracy & consistent reliability

Product Details:

Features :

• Negative phase sequence detection.
• Low power consumption.
• Selectable percentage unbalance settings.
• Auto/Manual reset operation.
• Fail-safe system.
• Accurate, reliable and tropicalized.
• Din Rail/surface mounting type.