Summary of Contents for Eaton Cutler-Hammer D64 Series
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5 = F/S CV LO SS RESET DOU BLE C LICK CON T’ = TRIP FAILE D FOR TE ST Cat. No. D64RPBH13 CANADA Eaton Electrical Canadian Operation Eaton Electrical 5050 Mainway Drive 1000 Cherrington Parkway Burlington, Ontario, Moon Township, PA L7L 5Z1...
DC current sent through the secondary windings of a CT can bias its core enough to shift the trip point outside specification on sensitive settings. For the CT supervision to work, either the special Eaton’s Cutler- Hammer C311CT zero sequence current transformer with a turns ratio of 10000:1, or the standard family of Series A2 C311CT zero sequence current transformers with a turns ratio of 500:1 must be installed, as specified in section 3.2.
PUB 50413 D64RPBH13 SERIES B1 GROUND FAULT RELAY Pull-apart terminal blocks simplify connection of field wiring. They have two 12 AWG screw clamps per pole with 90° and 180° orientation. Captive screws secure the blocks to the relay, safe from the effects of shock and vibration.
200 Amps to 2000 amps when using the special Eaton’s Cutler-Hammer C311CT zero sequence current transformer with a turns ratio of 10000:1. With Inhibit Enabled, if the ground fault current exceeds the inhibit level the output circuit breaker will be inhibited until the ground fault current drops below the inhibit level.
2.2.2 GROUND FAULT TRIP LEVEL The ground fault TRIP LEVEL range is either 50 - 1200 Amps when using the special Eaton’s Cutler- Hammer C311CT zero sequence current transformer with a turns ratio of 10000:1 or 2.5 – 60 Amps when using the standard family of C311CT zero sequence current transformers with a turns ratio of 500:1.
PUB 50413 D64RPBH13 SERIES B1 GROUND FAULT RELAY Table 2: Ground Fault Trip Level DIPSWITCH LEVELS WHEN USING C311CTs LEVELS WHEN USING C311CTs SETTINGS WITH 500:1 TURNS RATIO WITH 10,000:1 TURNS RATIO TRIP LEVEL INHIBIT LEVEL TRIP LEVEL INHIBIT LEVEL IN AMPS IN AMPS IN AMPS...
PUB 50413 D64RPBH13 SERIES B1 GROUND FAULT RELAY 2.2.4 OUTPUT CIRCUIT BREAKER OPERATING MODE –CONTACT STATE The two different OPERATING MODES are described under the glossary of terms. The setting of DIPswitch 12 determines the operating mode of the D64RPBH13 output circuit breaker. This is shown in Table 4.
PUB 50413 D64RPBH13 SERIES B1 GROUND FAULT RELAY Two .25 s flashes every few seconds means that the ground fault current exceeded the Trip Inhibit Level but the upstream device failed to trip during 1.2 s. The D64RPBH13 then tripped as a last resort. The contactor should be replaced since its contacts may well be damaged.
PUB 50413 D64RPBH13 SERIES B1 GROUND FAULT RELAY MEMORY AFTER LOSS OF CONTROL VOLTAGE When control voltage is removed from the D64RPBH13, the LAST TRIP registration will be memorized (for at least one week). Pressing the Reset pushbutton before restoring control voltage will light either the green LED or the red LED, green indicating no trip was registered and red indicating the opposite.
D64RPBH13 SERIES B1 GROUND FAULT RELAY EXTERNAL C311CT CURRENT TRANSFORMER The D64RPBH13 is designed to operate with either, a special Eaton’s Cutler-Hammer C311CT zero sequence current transformer with a turns ratio of 10000:1 or, the standard family of C311CT zero sequence current transformers with a turns ratio of 500:1.
For mounting dimensions and additional information on C311CT current transformers refer to the current Eaton’s Cutler-Hammer catalog. The D64RPBH13 is designed to operate with special Eaton’s Cutler-Hammer C311CT current transformers having a turns ratio of 10,000:1. Each C311CT is epoxy molded for exceptional mechanical properties and has a high-grade silicon iron core for excellent coupling characteristics.
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PUB 50413 D64RPBH13 SERIES B1 GROUND FAULT RELAY Output Circuit breaker: Contacts: Maximum UL rating: ............... 3 A @ 250 V ac, resistive EN 60947-5-1 rating: ......1 A @ 125 Vac, Utilization category AC-12 Maximum fusing under EN 60947-5-1: ............10 A Endurance: ..............Greater than 10,000 operations Dielectric strength ................
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PUB 50413 D64RPBH13 SERIES B1 GROUND FAULT RELAY Current Transformer ..........either C311CT current transformer with 500:1 ratio or, special C311CT current transformer 10,000:1 ratio Thermal Characteristics when using C311CT current transformer with 500:1 ratio: Short Time Withstand: 1000A ......................1 second 2000A ......................
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PUB 50413 D64RPBH13 SERIES B1 GROUND FAULT RELAY EN 61000-4-11 Electromagnetic compatibility (EMC) for industrial-process measurement and control equipment – Part 4-11: Voltage dips/drops/variations immunity EN 60947-5-1 Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices and switching elements – Electromechanical control circuit devices UL 1053 Ground-Fault Sensing and Relaying Equipment, Class 1 UL File E195341 C22.2 No.
PUB 50413 D64RPBH13 SERIES B1 GROUND FAULT RELAY TABLE 1 – CIRCUIT BREAKER TRIP CONTACT STATES STATE OF CIRCUIT BREAKER TRIP CONTACTS UNDER VARIOUS OPERATING CONDITIONS WITH DIPSWITCH 12 IN SELECTED POSITIONS DIPSWITCH 12 IN LEFT POSITION DIPSWITCH 12 IN RIGHT POSITION NON-FAILSAFE MODE FAILSAFE MODE NON-FAILSAFE...
PUB 50413 D64RPBH13 SERIES B1 GROUND FAULT RELAY FORM 1 - TEST RECORD GROUND FAULT TEST – D64RPBH13 G/F TEST INTERNAL Double-clicking the built-in RESET – TEST pushbutton invokes a test which switches an AC voltage onto the processor’s CT sensor input. The voltage is scaled to simulate a Ground fault current of 1.5 times the G/F trip level set point.
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