Recloser Electronic Control

Reclosers and sectionalizers isolate temporary and permanent faults in electric lines. Reclosers open circuits (trip) in case of a fault and reclose after a predetermined time. The time-current characteristic, usually expressed in a curve, is based on temperature and fuse tolerances and is used to coordinate recloser operations. Reclosers allow (usually) four trip operations to clear temporary faults. The first two trips generally occur at approximately 2 Hertz (Hz) (slow curve, TCC1), and the last two occur at 5 Hz (fast curve, TCC2). If the fault continues, the recloser locks out the circuit. The minimum trip current is set through a range of settings based on the CT ratio of the recloser and is usually twice the normal load current. Protective curves are generally associated with standard fuses (E and K speeds).

Associations: None

Subtypes: None

Model Names:

Attributes:

Field Name

Field Type

Description

AlternateTripCurrent[Phase, Ground]

long integer

Alternate trip current setting in amps.

HighCurrentActiveTripNumber [Phase, Ground]

long integer

Identifier of TCC.

HighCurrentLockoutActive [Phase, Ground]

long integer

Indicates whether high current lockout active indicator is on or off.

HighCurrentLockoutMultiplier [Phase, Ground]

long integer

If high current lockout indicator is on, multiplier can be applied to increase current at which Recloser locks out.

HighCurrentLockoutStatus [Phase, Ground]

long integer

Indicates whether high current lockout status indicator is on or off.

HighCurrentTripStatus [Phase, Ground]

long integer

Indicates whether high current trip indicator is on or off.

HighCurrentTripMultiplier [Phase, Ground]

long integer

If high current indicator is on, multiplier can be applied to increase trip current setting.

HighCurrentTripTimeDelay [Phase, Ground]

long integer

Increases time for current to trip recloser.

Lockout[Phase, Ground]

long integer

Total number of trips for recloser to remain open (lock out).

Manufacturer

text

Code indicating manufacturer of Recloser; domain values include ABB/Westinghouse, General Electric, etc.

MinimumTripCurrent [Phase, Ground]

long integer

Value at which overcurrent is detected in amps.

Model

text

Code indicating model; domain values include ESStatic Control, MEForm3A, etc.

OperatingTime

long integer

Operating time of recloser.

RecloseTime[1,2,3]

long integer

Interval in seconds between first, second, and third trip operation.

ResetTime

long integer

Time in seconds between trip operation and resetting to beginning of trip sequence.

TCCGroup[Phase, Ground]

long integer

Manufacturer group number assigned to specific curves used for setting recloser parameters.

TCC1ConstantTimeAdder [Phase, Ground]

long integer

Time adjustment assigned to specific curve for slow trips.

TCC1MinResponseTime [Phase, Ground]

long integer

Minimum response time of slow trip.

TCC1Multiplier[Phase, Ground]

long integer

Current adjustment multiplier applied to minimum trip current for slow trip.

TCC1Operations[Phase, Ground]

long integer

Number of trips per curve for slow trip.

TCC1Selection[Phase, Ground]

long integer

Specific curve selected for slow trip.

TCC2ConstantTimeAdder [Phase, Ground]

long integer

Time adjustment assigned to specific curve for fast trips.

TCC2MinResponseTime[Phase, Ground]

long integer

Minimum response time of fast trip.

TCC2Multiplier[Phase, Ground]

long integer

Current adjustment multiplier applied to minimum trip current for fast trip.

TCC2Operations[Phase, Ground]

long integer

Number of trips per curve for fast trip.

TCC2Selection[Phase, Ground]

long integer

Specific curve selected for fast trip.

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