Numerical
Check Synchronising Power Protection Relay :
ADR217B
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General Description :
ADR217B
is second generation Numerical sync-check Relay. It
consists all the necessary protection and monitoring
functions required for synchronising two power sources
All the relay are designed using latest numerical
technology and having programmable digital input and
outputs to minimized external contact. Relays design
tested for EMI / EMC noise as per international IEC
specifications. General features of all relays are
as given below
Specifications :
Definite
Time Sync-Check Protection for paralleling
two power source.
Phase
angle limit is adjustable over the range
of 1 to 90 degrees.
Time delay is adjustable over a range
of 0.1 to 99 seconds.
Voltage monitoring circuits provide independent
determination of Bus-A and Bus-B or Bus-A
to Bus-B voltage levels for selectable
closing conditions.
Voltage difference provides additional
verification of proper breaker closing
conditions.
Large 20x4 LCD display for Parameter and
setting display.
Online
display of line voltage and bus Voltage,
CB status and other digital and physical
status.
Continuous monitoring of module’s
internal hardware and alarm generation
in case of failure of any critical components.
Fully communicable with IEC standard open
protocol.
100 nos of event memory, 10 nos of Fault
data stored with keypad interface and
time stamping.
