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This range of Core Balanced Current Transformers are
exclusively for use with our 373-ELR Earth Leakage
Protection Relay. The extremely sensitive toroidal core and
secondary winding are encapsulated by a self extinguishing
case, giving excellent mechanical strength, protection from
damage and electrical insulation.
Residual current devices are used to detect potentially
dangerous earth fault currents before damage is caused.
An undetected fault current may lead to cables overheating,
which could start a fire. If high fault currents are
involved, hazardous voltages may also appear on earthed
equipment, putting lives at risk.
An earth leakage protection relay allows the fault current
to be continuously monitored and compared with the user
selectable leakage level. Should the leakage exceed this
level, the relay will trip to indicate a fault condition.
With a very fast response time of under 40ms, the supply can
be disconnected before serious damage can occur. An earth
leakage protection relay is intended to provide a high
degree of earth leakage protection and monitoring for any
electrical equipment - specifically motors and their control
gear, generator sets and transformers.
The leakage current is determined by passing the phase
conductors (and neutral if present) through a core balanced
current transformer.
PLEASE SEE TECHNICAL INFORMATION - PDF FOR COMPLETE
INFORMATION |
