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CIRCUIT BREAKER INFORMATION
The
OPTI
mizer
2
can store information about the
circuit breaker in memory. This information is for
reference only. It has no effect on functionality.
To enter Circuit Breaker Information, select the
CONFIGURATION tab and click “EDIT”:
Program:
Manufacturer = “ABCxyz123%^&…”
Program:
Voltage Rating (KV) = “12345”
Program:
Max. Interrupting Current (Amps) =
“1234567890”
Program:
Max. Operations Count = “1234567890”
4.3 Circuit Breaker Monitor Settings
The following settings are used by the
OPTI
mizer
2
specifically for circuit breaker monitoring.
POWER SYSTEM FREQUENCY
The applied power line frequency is entered as 60 or 50 Hz.
Note:
When the
OPTI
mizer
2
is cold-started, the Power
System Frequency parameter is set to 60Hz.
To set Power System Frequency, select the
CONFIGURATION tab and click “EDIT”:
Power System Frequency:
The System Frequency is
selected from a pull-down list.
BUSHING CT RATIO
Entering the applied CT ratio allows the
OPTI
mizer
2
to
reflect Duty values to the primary base. Enter the applied CT
ratio to set the
OPTI
mizer
2
(Primary current to Secondary
current).
Example:
Given:
A CT of 1000:5 is applied for a given breaker.
Calculate:
Primary Current / Secondary Current = CT Ratio
1000 / 5 = 200
CT Ratio = 200
To set Bushing CT Ratio, select the CONFIGURATION tab
and click “EDIT”:
Program:
Bushing CT Ratio = “200”
PICKUP COIL RATING
Entering the applied Pickup Coil Rating allows the
OPTI
mizer
2
to scale the input signal correctly for the
Pickup Coils being used.
Note:
When the
OPTI
mizer
2
is cold-started, the Pickup
Coil Rating parameter is set to “160 Amps”.
Pickup Coil Rating:
The Pickup Coil Rating is selected
from a pull-down list.