Elr || earth leakage relay || earth relay || what is an earth leakage relay malayalam |unnistechvlog
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- เผยแพร่เมื่อ 8 ก.ย. 2024
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Elr || earth leakage relay || earth relay || what is an earth leakage relay malayalam |unnistechvlog
difference between rccb and earth leakage relay
details: 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.
Specification
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
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