OMICRON 101
Circuit breaker data
15 Circuit breaker data
The following table describes the circuit breaker data.
Table 15-1: Circuit breaker data
Data Description
Circuit breaker
Number of phases Number of the circuit breaker’s phases
Number of interrupters
per phase
Number of the circuit breaker’s interrupters per phase
Pole operation Pole operation of the circuit breaker
Pre-insertion resistors
(PIR)
Select the Pre-insertion resistors (PIR) check box if the circuit breaker
contains pre-insertion resistors.
PIR value Pre-insertion resistor value
Grading capacitors Select the Grading capacitors check box if the circuit breaker contains
grading capacitors.
Capacitor value Grading capacitor value
Interrupting medium Interrupting medium of the circuit breaker
Tank type Type of the circuit breaker’s tank
Ratings
Rated frequency Rated frequency of the circuit breaker
Rated voltage L-L Rated voltage of the circuit breaker
Rated current Rated current of the circuit breaker
Rated short-circuit
breaking current
Rated short-circuit breaking current of the circuit breaker
Short-circuit nominal
duration
Nominal duration of the short-circuiting
Rated insulation level
(BIL)
Basic impulse level rating of the circuit breaker
Rated interrupting time Rated interrupting time of the circuit breaker
Interrupting duty cycle Interrupting duty cycle of the circuit breaker
Rated power at closing Rated power of the circuit breaker at closing
Rated power at opening Rated power of the circuit breaker at opening
Rated power at motor
charge
Rated power of the circuit breaker at motor charge
Contact system
Nominal total travel Total distance traveled by the contact during operation (excluding possible
over-travel)
For more information, see Figure 17-54: "Contact travel characteristics" on
page 256.
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