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:

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.