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INSTRUCTION

MANUAL

D64RPY2

D64RPY2 SERIES A1 DIGITAL GROUND FAULT RELAY

Pub. No. IM-

D64RPY2

 Ser. A1, August, 2002

Page 5

Refer to Figure 1. Pass the phase conductors through the CT window. If the neutral conductor is
carrying single phase current, it is to be passed through the window. Do not pass ground conductors
through the CT window. In applications that require shielded wires to pass through the CT window,
return the shields through the CT window before connecting them to ground.

Verify that the polarity of the conductors is correct when they pass through the CT. Verify that ground
paths do not exist that would bypass the CT. 

The D64RPY2 Trip Level is 500 milliamps. The maximum continuous primary phase current is to be
200 Amps.

3.3

CONNECTIONS

All connections to the D64RPY2 are by means of color coded wire leads.

Note

:

The Blue and Purple wire leads are NOT isolated from the control voltage.

Connect 24 Volt ac control power to the Black (+) and White (Neutral -) wire leads. Observe polarity.

In order to meet the Electromagnetic Compatibility (EMC) requirements a chassis bond is required
between the White (Neutral -) and the nearest ground point. This distance should be kept to an
absolute minimum. If the D64RPY2 mounting bracket is mounted on a grounded surface, one of the
mounting screws could serve as the chassis ground point.

Refer to Figure 1 and Table 1. Decide on the connection of field devices to control voltage and output
relay contact wire leads by comparing the desired control of the field devices under various operating
conditions.

Figure 1 shows the D64RPY2 using its built-in current transformer and a typical connection of a circuit
breaker with a shunt trip coil (ST). A remote Test button with N.O. contacts is connected to the Blue
and Purple wire leads. Comparing the operating mode and the relay contact states in Table 1, it can be
seen that the N.O. contact, Red wire lead, would be used for 24 Vac power to trip the shunt trip coil via
the Yellow wire lead in the event of a ground fault. The D64RPY2 will reset automatically 20
milliseconds after the ground fault current is interrupted by the tripping action of the circuit breaker. .
The N.C. contact, Brown wire, would be used for the 24 Vac power from the Fire Fuel Shutoff circuit
(same control power source) to trip the shunt trip coil via the yellow wire lead in the event of a call for
shutoff by the central command. This would have no impact on the operation of the D64RPY2.

4.

CATALOG NUMBERS

D64RPY2

Ground Fault Relay with built-in 1.1” (28mm) CT, 24 Volts ac control voltage, for use
on 660 Volts maximum, 50/60 Hz power system.

5.

TECHNICAL SPECIFICATION

Control Voltage (non-isolated)................................................................................................  24 Volts ac

Power consumption .............................................................................................. 0.15 W @ 24 V ac

Operating voltage tolerance....................................................55% to 110% of rated voltage 24 V ac

Under voltage tolerance (no impaired operation) ................. withstands loss of supply up to 100 ms

Power Up Time .......................................................................................................  500 milliseconds

Maximum System Voltage & Frequency..........................................................660 Volts ac, 45 to 450 Hz

Summary of Contents for Cutler-Hammer D64RPY2 A1 Series

Page 1: ...64RPY2 INSTRUCTION MANUAL PUBLICATION NO IM D64RPY2 SERIES A1 AUGUST 2002 CANADA U S A Cutler Hammer Canada Cutler Hammer Eaton Yale Ltd 4201 North 27th Street 3228 South Service Road Milwaukee WI Bur...

Page 2: ...OPERATION 3 2 1 GLOSSARY OF TERMS 3 2 2 RESET 4 2 3 GROUND FAULT TEST 4 3 INSTALLATION INSTRUCTIONS 4 3 1 MOUNTING 4 3 2 BUILT IN CURRENT TRANSFORMER 4 3 3 CONNECTIONS 5 4 CATALOG NUMBERS 5 5 TECHNICA...

Page 3: ...s a functional test of the D64RPY2 is invoked Three seconds later the relay resets The D64RPY2 operates on 24 Volts ac control power 2 OPERATION 2 1 GLOSSARY OF TERMS Pulsed Trip Auto Reset The output...

Page 4: ...EST The D64RPY2 has Blue and Purple wire leads for connection to a remote N O Test button Pressing this button invokes a relay test A simulated current of 600 milliamps 1 2 times the trip current repl...

Page 5: ...the connection of field devices to control voltage and output relay contact wire leads by comparing the desired control of the field devices under various operating conditions Figure 1 shows the D64RP...

Page 6: ...of the built in current transformer No external power supply or additional wiring is required Remote Test Press Test button connected to Blue and Purple wire leads Reset mode Pulsed Auto Reset Ground...

Page 7: ...at 10m distance 230 1000 MHz 37 dB V at 10m distance EN 50082 1 Electromagnetic compatibility radiated immunity industrial directive highest levels 80 1000 MHz with 80 AM modulation up to 10 V m at 3m...

Page 8: ...N FAULT CURRENT ABOVE TRIP SETTING TRIP TIME 3 Sec Pulse 3 Sec Pulse 4 CONTROL POWER ON FAULT CLEARED BEFORE 3 SECOND PULSE EXPIRES NO RESET REQUEST 20 ms 20 ms RESET REQUEST Not Required Not Required...

Page 9: ...Y Pub No IM D64RPY2 Ser A1 August 2002 Page 9 FIGURE 1 TYPICAL FIELD CONNECTION USING BUILT IN CURRENT TRANSFORMER GROUNDED SYSTEMS 1 Phase 2 wire 1 Phase 3 wire 3 Phase 3 wire 3 Phase 4 wire POWER SO...

Page 10: ...BLK A2 WHT C YEL T2 BLU T1 PUR INTERNAL CT SENSOR In A RATINGS PER IEC 60755 100 SEE MANUAL FOR SET UP INSTRUCTIONS PROD BATCH Nr P113 RELAY CLASS 1 GROUND FAULT SENSING AND RELAYING EQUIPMENT 700103...

Page 11: ...have elapsed the unit should trip This procedure tests the functionality of the unit RESETTING THE D64RPY2 AFTER GROUND FAULT TRIP TEST After the trip the output relay will reset in approximately 20...

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