Measurement 2 Submenu; Opto Inputs - GE P50 Agile P253 Technical Manual

P50 Agile P253
2.4.2

MEASUREMENT 2 Submenu

Nb Emergency Rst
In the event of a fault, the type of the fault and fault current are displayed on LCD. The IED measures
the fault current and stores it in the non-volatile memory.
2.5

Opto Inputs

The device supports 6 numbers of opto-inputs. The use of these opto-inputs depends on the
application. There are a number of settings associated with the opto-inputs.
The relays have programmable opto-isolated logic inputs, which can be assigned to any available
function which are identified as Opto I/P 1 to Opto I/P 6. These inputs are used to acquire status of
external field signals such as CB close, CB open or can be programmed for function such as external
reset, External trigger to DR. by using P50 Configurator as well as relay user interface. On the user
P253/EN M/C
Parameter
ib
ic
in1
in2
io
i1
i2
Irms A
Irms B
Irms C
BOC
TC
BOT
Parameter
Thermal State
Load Current
Time to Th Trip
Nb of Th Trip
Last Start Time
Last St Current
Nb Hot St Allow
Nb Cold St Allow
Time to Next st
Total Nb of strt
Motor Run Time
Unit Description
amp Secondary current in phase B
amp Secondary current in phase C
amp Secondary current in phase N (measured)
amp Secondary current in N (derived)
amp Secondary zero phase sequence current
amp Secondary +ve phase sequence current
amp Secondary -ve phase sequence current
amp True-rms secondary current in phase A
amp True-rms secondary current in phase B
amp True-rms secondary current in phase C
Breaker operation counter
count (Count of total breaker operations-
local & relay tripping)
Breaker Trip counter
count
(Count of number of trips issued by relay)
Breaker operating time
millisecond
(Breaker contact opening time for the latest
trip)
Unit Description
% Thermal state of motor
% value of load current (maximum value of
three phases)
second Time to Thermal Trip
count Counter for number of Thermal trip
second Last start time
amp Last starting current
Counter for number of motor hot start
count
allowed
Counter for number of motor cold start
count
allowed
second Time before permitted start
count Counter for number of starts
count Counter for number of Emergency starts
hour Total motor running hours
8 Monitoring & Control
8-7