!

SAFETY

FOR LIFE

Power Metering

Power metering includes single- and three-phase Watts, VARS, KVARS, KWH measurements, and the per phase and total system Power Factor (PF).

Power Factor Sign Metering

This feature allows a user to configure the sign that is applied to the power factor. The user may select between the standard definition of power factor (cosine of angle between current and voltage) or the Cooper Power Systems default of the power factor sign following power flow.

Voltage Metering

Six voltages (3-source and 3-load) are metered as standard on the Form 5 control. The user selects either phase- to-phase or phase-to-ground values from the control operator panel, interface software, or serial communica- tions. This reference is changed by selecting the voltage sensor correction in the “Hardware” setup portion of the interface software.

Fast Trips Disabled

Fast Trips Disabled provides the user a quick and efficient method for reducing momentary interruptions or “blinks”. When activated from the front keypad, programmed trips to lockout will time according to the selected time-current curve for Fast Trips Disabled. This curve is programmable for both phase and ground on each protection profile. A separate trips-to-lockout setting is also provided. See Figure 9.

Trip Failure Detection

The Trip Failure Detection feature is an internal diagnostic alarm for verifying the proper operation of circuit tripping and fault clearing of the recloser. Trip Failure detection indicates the recloser has failed to trip all phases following a trip signal from the control. Failure to trip is assumed if a current of at least 10 Amps is detected approximately 2 seconds after the trip signal is initiated.

Upon activation of the feature, these four LEDs flash 1 second on, 1 second off (Figure 10):

•RECLOSER MALFUNCTION

•RECLOSER CLOSED

•RECLOSER OPEN

•CONTROL LOCKOUT

!

DANGER: Explosion. Stay clear of a recloser

that is in a trip failure mode. A recloser in trip fail-

 

ure mode may explode resulting in death or severe per-

 

sonal injury.

T271.0

 

 

 

 

 

 

 

 

 

!

WARNING: Hazardous voltage. This device is

 

not a substitute for a visible disconnect. Follow all

 

 

 

 

locally approved safety practices. Failure to follow proper safety practices can result in contact with high voltage, which will cause death or severe personal

injury.

G112.1

S280-79-10

AC POWER

ABOVE MIN TRIP

CHECK BATTERY

RECLOSER MALFUNCTION

REVERSE POWER FLOW

BUSHINGS 1-2 FAULT TARGET

BUSHINGS 3-4 FAULT TARGET

BUSHINGS 5-6 FAULT TARGET

GROUND FAULT TARGET

SENSITIVE-GROUND FAULT TARGET

BUSHINGS 1-2 VOLTAGE

BUSHINGS 3-4 VOLTAGE

BUSHINGS 5-6 VOLTAGE

RECLOSER CLOSED

RECLOSER OPEN

CONTROL LOCKOUT

Figure 10.

RECLOSER MALFUNCTION, RECLOSER CLOSED, RECLOSER OPEN and CONTROL LOCKOUT LEDs will blink for the affected phase as indication of Trip Failure.

IMPORTANT: The recloser must be isolated and de- energized immediately upon detection of trip failure. Follow proper procedures and safety practices to isolate and de-energize the recloser.

The Trip Failure Detection alarm may be triggered from many potential sources including mechanical, electrical, control, or interrupter failure. Interrupter failure may include loss of vacuum in a vacuum interrupter.

To clear Trip Failure Alarm, depress and hold the RESET TARGETS/RESET MAX CURRENTS keypad for 3 sec- onds. This also resets targets and demand currents.

Note: There is no remote reset available with the trip failure detection feature. It cannot be remotely turned off.

When the trip failure alarm is activated, an event is recorded and a status alarm activated (if enabled) and preserved during system resets.

To test the Trip Failure Detection feature, see Testing With Type MET Tester in the TESTING AND TROUBLESHOOTING section of this manual.

15