ACR - Automatic Circuit Recloser
An Automatic Circuit Recloser is a circuit breaker incorporating
a multishot, autoclosing relay, installed on a medium voltage
feeder. They are designed to trip when a fault is detected,
then automatically reclose after a set amount of time in an
attempt to clear transient faults on the feeder. They can
save considerable time when restoring power.
Bus bar (busbar)
An electrically conductive bar connecting two or more electrical circuits.
See
NOJA Switchboards
CT - Current Transformer
Current Transformers are used to measure current for protection
and measurement in switchgear applications.
DNP3 - Protocolo de Red Distribuida 3
DNP3 is a communications protocol used for SCADA communications.NOJA
Power's range of OSM reclosers are supplied with the DNP3
protocol as standard.
DSA - Distribution System Automation
ITS - Interface Test Set
The Interface Test Set simulates the current and voltage signals
generated by sensors inside the OSM recloser bushings for
system testing purposes. It is used to perform tests such
as three phase short circuit, phase to phase short circuit,
earth fault, upstream broken wire, low source voltage and
loss of supply.
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