Breaker - GE F650 Instruction Manual

5 SETTINGS
There are two types of breaker settings:
Breaker settings: These settings correspond to the switchgear configured as a breaker in the F650; this switchgear is
used in the recloser functions, breaker failure and synchronism.
Breaker Maintenance: These settings correspond to the initialization of the (KI)
number of openings and closings of the switchgear configured as a breaker.
5.3.3.1 BREAKER SETTINGS (SETPOINT > SYSTEM SETUP > BREAKER > BREAKER SETTINGS)
Table 5–22: BREAKER SETTINGS
SETPOINT > SYSTEM SETUP > BREAKER > BREAKER SETTINGS
Setting Description
Number of Switchgear selected as breaker Number of Switchgear
2
Maximum value of (KI) t
2
(KI) t integration time
Maximum number of openings
Maximum Openings in one hour
Snapshot Event generation
Breaker settings are as follows:
Number of switchgear:
2
Maximum (KI) t:
2
(KI) t Integration Time:
Maximum Openings:
Maximum Openings in 1 hour: This is the maximum number of openings allowed in the relay during one hour; once this
Snapshot Events:
The interrupted current limit setting, fixes the Maximum breaker capacity (this value is set depending on the information
provided by the breaker manufacturer); the relay incorporates a (KI)
occurs, the counter increases its value (in primary values). If the flowing current is lower than the rated current, the relay will
take the rated current value for its calculations. When the accumulated counter for each phase reaches or exceeds the set
value, the corresponding alarm signal will be activated.
The purpose of this function is to provide closer information of the current status of the breaker's internal contacts. This is,
in order to ensure appropriate breaker maintenance, and to decrease the risk of damage when the breaker has suffered
severe operations during a long time. Once the breaker has been operated, and the preventive maintenance is in place, the
2
accumulated I t values and the number of operations are reset to zero.
GEK-106310AB
Name
2
Maximum (KI) t
2
(KI) t Integ. Time
Maximum Openings
Max.Openings 1 hour
Snapshot Events
This is the Number of the Switchgear that is configured as a breaker. It is the reference for
breaker failure (50BF), recloser (79) and synchronism (25) elements. The selected
switchgear in the breaker settings must be previously configured at Setpoint > Relay
Configuration > Switchgear. The relay allows to configure up to 16 switchgear elements,
but the one configured as a breaker will be the reference for (KI)
counters.
This is the maximum set value for the square of the current multiplied by the breaker
opening time. There is a separate counter for each phase, but the value stored as the
maximum is a single value for the three phases.
This is the integration time taken as the base (fixed opening time) for the calculation of
2
(KI) t.
This is the maximum number of openings allowed in the relay, with a limit of 9999; once
this value is exceeded, the relay will produce an alarm. When the limit 9999 is reached the
maximum openings counter will start from zero.
value is reached, the corresponding alarm signal will be activated; this value is updated
and reset after one hour.
This setting enables or disables the snapshot event generation for the breaker signals.
F650 Digital Bay Controller
2
t counters, and the counting of the
Default Step Range
Value
1 1 [1 : 16]
9999.99 2 [0.00 : 9999.99]
0.01(KA) s
0.03 0.01s [0.03 : 0.25]
9999 1 [0 : 9999]
40 1 [1 : 60]
ENABLED N/A [DISABLED – ENABLED]
2
t counter for each phase, when a breaker opening
5.3 SYSTEM SETUP

5.3.3 BREAKER

5
2
t, openings and closings
5-27