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Providing complete Electrical, Instrumentation and Control Engineering
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Complete execution of PLC-PC Automation systems, preparing Logic charts,
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Aquiring data from PLC & Field equipment. Providing supervisory control,
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Switchboards, Distribution Panels, MCC, PCC, LT Panels, Control Desks,
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Home > Relays > Earth Leakage Relay
RELAYS
Earth Leakage Relay with CBCT - CIT11 (Residual Current Relay) Operation In an earthed neutral A.C. System the sum total of phase and neutral current is zero i.e. there is no leakage current. However, if at any place a failure of insulation takes place then part of the phase current returns via earth instead of neutral. The active and neutral currents are then no longer equal. This unbalance is detected by a core balance current transformer for onward tripping of circuit breaker. Construction This protection system basically comprises of two components : CBCT - Core Balance Current Transformer : This is supplied in ring or rectangular shape to suite mounting on conductors/cables or busbars/circuit breaker. RELAY : The Information from C.B.C.T. is first of all amplified by the amplifier stage from there it is devalued and only when the leakage exceeds the preset value it operates a relay. Setting
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Hybrid Automation Systems  
Highly dependable Automation systems with standby conventional manual
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