Earth Leakage Current give rise to generation of heat and result in progressive failure of
insulation, which leads to earth faults sparking flashovers, deterioration of earthing and finally
results into catastrophic fires which destroys costly equipments, gadgets and precious lives.
It is therefore essential to detect earth leakage current well before they cross the threshold
limits and isolate the circuit in the event of leakages.

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.

Prok dv’s brand earth leakage relay MPEL series uses the state of the art microcontroller based protection device to detect low level leakage due to degradation of insulation of phase conductors or high impedance faults.
The main feature of MPEL is the continuous display of earth leakage currents of the power system. The unit is immune to external disturbance like harmonics and transients.

INSTALLATION PROCEDURE FOR EARTH LEAKAGE RELAY CBCT :

1. Check the sensitivity of Earth Leakage Relay and also the inner diameter of core balance current transformer.
2. The Serial No. of the ELR and CBCT should match for better performance (the performance shall be guaranteed if the serial no. of the ELR and CBCT are matched).
3. Check the Auxiliary Supply of ELR and proper Voltage i.e. the rated Auxiliary Voltage.
4. The ELR have one pair of potential free change over contact for tripping purpose. Use rated current and rated voltage (refer the specification of our product). One pair of change over contact i.e., N/O Contact and N/C Contact can be used depending upon the tripping management.

Prok dv's make Earth Leakage Relay (ELR) MPEL series uses the state-of-the-art, Digital
microprocessor/micro controller based protection device to detect low level leakage due
to degradation of insulation of phase conductors or high impedance faults.The main feature
of Digital microprocessor/microcontroller Earth Leakage Relay (ELR) continuous display of
earth leakage currents of the power system. The unit has immunity to external disturbance
like harmonics and transients.

The rise of leakage current in Electrical Power Distribution are quite dangerous , resulting in Electrical hazards and catastrophe. Leakage Current are due to deterioration of insulations, negligence of wire man, Bad wiring, Inferior / substandard usage of Electrical Materials , ageing or endurance of Electrical environment . First and foremost importance should be given for the proper earthing of electrical net work-system. Most of the Industries, Commercial establishment and domestic application the earthing of electrical system is ignored and improper maintenance of the same.

The Earth Leakage Current are very low and are sensitive leakage current can be detected by Earth Leakage Relay and core balance current transformer. ELR detects the Leakage Current in the circuit and isolate the power supply by switching off the tripping device (circuit breaker / contactor etc).

Earth Leakage Current give rise to generation of heat and result in progressive failure of
insulation, which leads to earth faults sparking flashovers, deterioration of earthing and finally
results into catastrophic fires which destroys costly equipments, gadgets and precious lives.
It is therefore essential to detect earth leakage current well before they cross the threshold
limits and isolate the circuit in the event of leakages.

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.

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.
Prok dv's make Earth Leakage Relay (ELR) MPEL series uses the state-of-the-art, Digital
microprocessor/micro controller based protection device to detect low level leakage due
to degradation of insulation of phase conductors or high impedance faults.The main feature
of Digital microprocessor/microcontroller Earth Leakage Relay (ELR) continuous display of
earth leakage currents of the power system. The unit has immunity to external disturbance
like harmonics and transients.

Prok dv's make Earth Leakage Relay (ELR) MPEL series uses the state-of-the-art, Digital
microprocessor/micro controller based protection device to detect low level leakage due
to degradation of insulation of phase conductors or high impedance faults.The main feature
of Digital microprocessor/microcontroller Earth Leakage Relay (ELR) continuous display of
earth leakage currents of the power system. The unit has immunity to external disturbance
like harmonics and transients.

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.

Earth Leakage Current give rise to generation of heat and result in progressive failure of
insulation, which leads to earth faults sparking flashovers, deterioration of earthing and finally
results into catastrophic fires which destroys costly equipments, gadgets and precious lives.
It is therefore essential to detect earth leakage current well before they cross the threshold
limits and isolate the circuit in the event of leakages. Conventional over current and short
circuit protection device are not designed detect earth leakage currents.

Prok dv's make Static Earth Leakage Relay (ELR) with Core Balance Current Transformer ( CBCT
/ ZCT) are used to detect the leakage current in an Electrical Power System. Static Earth
Leakage Relay (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 electrical
power system. Static earth leakage relay (ELR) and core balance current transformer (CBCT /
ZCT) have been widely used and accepted because these have field adaptability and are
economic.

Prok dv's make Static Earth Leakage Relay (ELR) with Core Balance Current Transformer ( CBCT
/ ZCT) are used to detect the leakage current in an Electrical Power System. Static Earth
Leakage Relay (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 electrical
power system. Static earth leakage relay (ELR) and core balance current transformer (CBCT /
ZCT) have been widely used and accepted because these have field adaptability and are
economic.

Earth Leakage Current give rise to generation of heat and result in progressive failure of insulation, which leads to earth faults sparking flashovers, deterioration of earthing and finally results into catastrophic fires which destroys costly equipments, gadgets and precious lives. It is therefore essential to detect earth leakage current well before they cross the threshold limits and isolate the circuit in the event of leakages. Conventional over current and short circuit protection device are not designed detect earth leakage currents.

Prok dv’s make Earth Leakage Relay (ELR) with Core Balance Current Transformer
( CBCT / ZCT) are used to detect the leakage current in an Electrical Power System. Earth Leakage Relay (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 electrical power system. Earth leakage relay (ELR) and core balance current transformer (CBCT / ZCT) have been widely used and accepted because these have field adaptability and are economic.

• 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

Prok dv's make Static Earth Leakage Relay (ELR) with Core Balance Current Transformer ( CBCT
/ ZCT) are used to detect the leakage current in an Electrical Power System. Static Earth
Leakage Relay (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 electrical
power system. Static earth leakage relay (ELR) and core balance current transformer (CBCT /
ZCT) have been widely used and accepted because these have field adaptability and are
economic.

• 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

Earth Leakage Current give rise to generation of heat and result in progressive failure of
insulation, which leads to earth faults sparking flashovers, deterioration of earthing and finally
results into catastrophic fires which destroys costly equipments, gadgets and precious lives.
It is therefore essential to detect earth leakage current well before they cross the threshold
limits and isolate the circuit in the event of leakages. Conventional over current and short
circuit protection device are not designed detect earth leakage currents.

Prok dv's make Static Earth Leakage Relay (ELR) with Core Balance Current Transformer ( CBCT
/ ZCT) are used to detect the leakage current in an Electrical Power System. Static Earth
Leakage Relay (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 electrical
power system. Static earth leakage relay (ELR) and core balance current transformer (CBCT /
ZCT) have been widely used and accepted because these have field adaptability and are
economic.

Prok dv's make Static Earth Leakage Relay (ELR) with Core Balance Current Transformer ( CBCT
/ ZCT) are used to detect the leakage current in an Electrical Power System. Static Earth
Leakage Relay (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 electrical
power system. Static earth leakage relay (ELR) and core balance current transformer (CBCT /
ZCT) have been widely used and accepted because these have field adaptability and are
economic.

Earth Leakage Current give rise to generation of heat and result in progressive failure of
insulation, which leads to earth faults sparking flashovers, deterioration of earthing and finally
results into catastrophic fires which destroys costly equipments, gadgets and precious lives.
It is therefore essential to detect earth leakage current well before they cross the threshold
limits and isolate the circuit in the event of leakages. Conventional over current and short
circuit protection device are not designed detect earth leakage currents.

Earth Leakage Current give rise to generation of heat and result in progressive failure of insulation, which leads to earth faults sparking flashovers, deterioration of earthing and finally results into catastrophic fires which destroys costly equipments, gadgets and precious lives. It is therefore essential to detect earth leakage current well before they cross the threshold limits and isolate the circuit in the event of leakages. Conventional over current and short circuit protection device are not designed detect earth leakage currents.

Prok dv’s make Earth Leakage Relay (ELR) with Core Balance Current Transformer
( CBCT / ZCT) are used to detect the leakage current in an Electrical Power System. Earth Leakage Relay (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 electrical power system. Earth leakage relay (ELR) and core balance current transformer (CBCT / ZCT) have been widely used and accepted because these have field adaptability and are economic.

• 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

Earth Leakage Current give rise to generation of heat and result in progressive failure of
insulation, which leads to earth faults sparking flashovers, deterioration of earthing and finally
results into catastrophic fires which destroys costly equipments, gadgets and precious lives.
It is therefore essential to detect earth leakage current well before they cross the threshold
limits and isolate the circuit in the event of leakages. Conventional over current and short
circuit protection device are not designed detect earth leakage currents.

Prok dv's make Static Earth Leakage Relay (ELR) with Core Balance Current Transformer ( CBCT
/ ZCT) are used to detect the leakage current in an Electrical Power System. Static Earth
Leakage Relay (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 electrical
power system. Static earth leakage relay (ELR) and core balance current transformer (CBCT /
ZCT) have been widely used and accepted because these have field adaptability and are
economic.

• 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

Prok dv's make Static Earth Leakage Relay (ELR) with Core Balance Current Transformer ( CBCT
/ ZCT) are used to detect the leakage current in an Electrical Power System. Static Earth
Leakage Relay (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 electrical
power system. Static earth leakage relay (ELR) and core balance current transformer (CBCT /
ZCT) have been widely used and accepted because these have field adaptability and are
economic.

Earth Leakage Current give rise to generation of heat and result in progressive failure of
insulation, which leads to earth faults sparking flashovers, deterioration of earthing and finally
results into catastrophic fires which destroys costly equipments, gadgets and precious lives.
It is therefore essential to detect earth leakage current well before they cross the threshold
limits and isolate the circuit in the event of leakages. Conventional over current and short
circuit protection device are not designed detect earth leakage currents.

Prok dv's make Static Earth Leakage Relay (ELR) with Core Balance Current Transformer ( CBCT
/ ZCT) are used to detect the leakage current in an Electrical Power System. Static Earth
Leakage Relay (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 electrical
power system. Static earth leakage relay (ELR) and core balance current transformer (CBCT /
ZCT) have been widely used and accepted because these have field adaptability and are
economic.

• 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

Earth Leakage Current give rise to generation of heat and result in progressive failure of
insulation, which leads to earth faults sparking flashovers, deterioration of earthing and finally
results into catastrophic fires which destroys costly equipments, gadgets and precious lives.
It is therefore essential to detect earth leakage current well before they cross the threshold
limits and isolate the circuit in the event of leakages. Conventional over current and short
circuit protection device are not designed detect earth leakage currents.

Prok dv's make Static Earth Leakage Relay (ELR) with Core Balance Current Transformer ( CBCT
/ ZCT) are used to detect the leakage current in an Electrical Power System. Static Earth
Leakage Relay (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 electrical
power system. Static earth leakage relay (ELR) and core balance current transformer (CBCT /
ZCT) have been widely used and accepted because these have field adaptability and are
economic.