InteliATS
NT
PWR, SW version 2.5, ©ComAp
– May 2015
30
IA-NT- PWR-2.5-Reference Guide.pdf
AMF using two separate breakers with feedbacks (MCB and GCB) +
Test on Load
G
GCB
3x
LOAD
3x
U
M
3x
U
G
3
xI
G
MCB
3x
T
3x
K4
MCB
GCB
K3
3x
BO
BI
IA-NT
MCB
MCB
FEEDBACK
GCB
GCB FEEDBACK
TEST ON LOAD
ON LOAD TEST
REQUIRED
REMOTE TEST
/
CLOSE OPEN
GCB
MCB CLOSE / OPEN
Specification
Automatic remote gen-set start when the mains fails (AUT mode)
GCB & MCB full control with feedbacks
Break transfer on mains failure
Break return on mains return (Load reclosing)
Test mode (set running and waiting for mains failure)
On Load Test - load transfer to gen-set (Island operation) and back to mains in TEST mode on
BI Test on load
activation/deactivation. There are 2 breaks in this operation. Controller may
be forced to TEST mode by
BI Remote TEST
Hardware requirements
1x
IA-NT PWR
Setpoints
MCB Logic =
“CLOSE-OFF”
RetFromIsland =
“AUTO” – automatic return (MCB Close) to mains after TEST
RetFromIsland =
“MANUAL” – manual return to mains (MCB Close) after TEST – IA-NT goes to MAN
mode.