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PUB 51079

 

 

D64RP14 SERIES A2 DIGITAL GROUND FAULT RELAY 

 

 

Revision 1 

May, 2005 

Page 6 

 

 

 

 

The two secondary terminals of the external CT are to be connected to terminals T1 and T2 of 

the D64RP14. 

 

Chassis Ground 

 

 

Chassis ground is the ground to which all of the non-current carrying metal equipment is 

connected/bonded. Typically, equipment grounding is provided by means of a ground bus. A 

solid connection is to be made from terminal N- of the D64RP14 to the nearest chassis 

ground to ensure the relay complies with the specified Electromagnetic compatibility (EMC) 

standards. 

 

2.2 

DIPSWITCH SETTINGS

 

 

 

FOR MAXIMUM SAFETY THE SETTINGS DESCRIBED IN THIS SECTION SHOULD BE MADE 

WITH CONTROL VOLTAGE REMOVED FROM THE D64RP14 RELAY. 

 

 

The DIPswitches are mounted inside of the relay and are accessible through the front cover. It is 

recommended that all of the DIPswitches be set at one time.  

 

 

Should it be necessary to make changes to the DIPswitch settings when the D64RP14 relay is 

energized, this can be done without having any adverse effect on the performance of the relay. 

 

 

Please Refer to Table 1. This provides a list of the 8 DIPswitches, the function of each group, and the 

values related to each setting. The DIPswitches are numbered from 1 to 8 left to right. 

 

 

TABLE 1 – DIPSWITCH SETTINGS 

       In the table below ‘D’ denotes down and ‘U’ denotes up. 
 

Switch 

Function 

Set to 

Meaning 

1 2 3  

Ground fault trip current limit  D  U  U 

D  U  D 

D  D  U 

D  D  D  

   

U  U  U     

U  U  D 

U  D  U 

U  D  D 

 

1.0  Amps 

 

1.5  Amps 

 

2.0  Amps 

 

2.5  Amps 

 

4.0  Amps 

 

6.0  Amps 

 

8.0  Amps 

  10.0  Amps 

4 5 6  

Trip time delay 

D  D  D  

 

D  D  U 

D  U  D 

D  U  U   

U  D  D   

U  D  U 

U  U  D 

U  U  U   

 

0.5  seconds 

 

1.0  seconds 

 

1.5  seconds 

 

2.0  seconds 

 

2.5  seconds 

 

5.0  seconds 

 

7.5  seconds 

  10.0  seconds 

7 8 

Trip relay operation mode 

D  D      

 

D  U 

U  D 

Non-failsafe, continuous operation 

Failsafe, continuous operation 

Pulsed Auto reset operation (pulse turns 

off 3 seconds after G/F removed)  

 FACTORY SETTING 

 

2.2.1 

GROUND FAULT TRIP CURRENT LEVEL - DIPSWITCHES 1, 2, & 3 

 

 

The ground fault TRIP LEVEL range is 1 Amp - 10 Amps. Table 1 provides a listing of the eight TRIP 

LEVEL settings, which can be made on DIPswitches 1, 2, & 3. 

 

 

Summary of Contents for Cutler-Hammer D64RP14 Series

Page 1: ...28 South Service Road 4201 North 27th Street Burlington Ontario Milwaukee WI L7R 3Y8 53216 T2 T1 R1 R2 N L M M 11 12 13 14 24 240V AC DC CT TEST RESET N C N O METER INTERNAL 100 0 5 10 RATINGS PER IEC...

Page 2: ...TE 7 2 4 INDICATION 7 2 5 RESET 7 2 6 GROUND FAULT TEST 7 3 INSTALLATION INSTRUCTIONS 8 3 1 MOUNTING 8 3 2 BUILT IN CURRENT TRANSFORMER 8 3 3 EXTERNAL CURRENT TRANSFORMER 8 3 4 CONNECTIONS 9 3 4 1 CON...

Page 3: ...nding on the overall length of the cables the types of loads the quality of insulation on the phase conductors the surrounding equipment grounding cable trays junction boxes etc and the type of transf...

Page 4: ...green LED is turned off This is in effect Auto Reset If the ground fault has not been cleared when control voltage is restored the relay will trip and the green LED will resume fast blink after 500 mi...

Page 5: ...als N L In this condition the green LED does not light If control voltage is maintained on terminals N L after a ground fault trip the RESET button must be pressed to reset the relay after clearing th...

Page 6: ...the D64RP14 relay is energized this can be done without having any adverse effect on the performance of the relay Please Refer to Table 1 This provides a list of the 8 DIPswitches the function of each...

Page 7: ...NON FAILSAFE or PULSED AUTO RESET operation of the output relay is required The factory setting is NON FAILSAFE with DIPswitches 7 8 in the Down position Refer to Table 1 for DIPswitch settings for F...

Page 8: ...actors and high power conductors and buswork CAUTION For reliable ground fault detection by the D64RP14 use one CT configuration only Built in CT or External CT i e do not pass power conductors throug...

Page 9: ...ps 300 Volts Each screw clamp terminal will accept 26 12 AWG solid or stranded conductors The terminals are pull apart For remote metering connect a meter having a 0 10 volt movement with a 0 100 scal...

Page 10: ...f one of the units and connect the other terminal of the button to terminals R1 of all the units in parallel 4 CATALOG NUMBERS D64RP14 Ground Fault Relay with built in 1 1 28mm CT 24 240 Volts ac or d...

Page 11: ...de Selected on DIPswitches 7 8 Non Failsafe Failsafe Pulsed Auto Reset Functional Test A simulated current equal to 120 of the trip current set on the Trip Level DIPswitches replaces the measured curr...

Page 12: ...ms 9711 10045 ms 9700 10032 ms 9694 10026 ms Frequency Response Range 45 65 Hz Thermal Characteristics Short Time Withstand 1000A 1 second 2000A 0 1 second Environment Operating Temperature 35 C to 6...

Page 13: ...tromagnetic compatibility EMC for industrial process measurement and control equipment Part 4 5 Surge immunity EN 61000 4 6 Electromagnetic compatibility EMC for industrial process measurement and con...

Page 14: ...PERATING CONDITIONS 13 14 11 12 13 14 11 12 13 14 11 12 1 CONTROL POWER OFF 2 CONTROL POWER ON 500 ms 500 ms 3 CONTROL POWER ON FAULT CURRENT ABOVE TRIP SETTING TRIP TIME NO RESET REQUEST 3 Sec Pulse...

Page 15: ...RRENT TRANSFORMER AND PULSED TRIP AUTO RESET POWER SOURCE T2 T1 R1 R2 N L M M 11 12 13 14 24 240V AC DC CT TEST RESET N C N O METER INTERNAL 100 0 5 10 RATINGS PER IEC 60755 CT SENSOR In A I n A EXT 5...

Page 16: ...SYSTEMS 1 Phase 2 wire 1 Phase 3 wire 3 Phase 3 wire 3 Phase 4 wire POWER SOURCE CURRENT CARRYING NEUTRAL WHEN USED 500 1 C311CT SERIES R 1M 1M START STOP O L T2 T1 R1 R2 N L M M 11 12 13 14 24 240V A...

Page 17: ...KG PACKAGED WEIGHT 1 08 LBS 49 KG DIMENSIONS ARE IN INCHES MM IN BRACKETS FIGURE 3 DIMENSIONS AND WEIGHTS D64RP14 REAR PANEL MOUNTING DIN RAIL OR 2 SCREW 1 38 35 2 76 70 1 10 28 1 26 32 4 03 102 4 4 9...

Page 18: ...e green IND LED should fast blink This procedure tests the functionality of the unit RESETTING THE D64RP14 AFTER GROUND FAULT TRIP TEST If the D64RP14 is in the Non failsafe or Failsafe mode manual re...

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