ADDENDUM TO IB17555D INSTRUCTIONS FOR INSTALLATION, OPERATION AND MAINTENANCE OF THE CUTLER-HAMMER DIGITRIP 3000 SERIES OF PROTECTIVE RELAYS

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1 ADDENDUM TO IB17555D INSTRUCTIONS FOR INSTALLATION, OPERATION AND MAINTENANCE OF THE CUTLER-HAMMER DIGITRIP 3000 SERIES OF PROTECTIVE RELAYS INSTRUCTION LEAFLET IB17555D_ADDENDUM Effective Date: 11/02 For more information visit:

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3 Addendum to IB17555D IB17555D_Addendum DT-3000 Effective Date: 11/02 Page A-3 Table of Contents OVERVIEW... 4 DT Page DT 3001 / DT Page DT 3010 / DT Page Effective Date: 11/02 For more information visit: Page A-3

4 IB17555D_Addendum Page A-4 Effective Date: 11/02 DT-3000 Addendum to IB17555D OVERVIEW The following is an addendum to the DT-3000 Instruction Leaflet IB17555D, style number 8163H25H06. Please note the following changes and/or corrections to the Instruction Leaflet. DT 3000 The Digitrip 3000 Protective Relay provides protection for most types of medium voltage electrical power distribution systems. It was designed for use with Cutler-Hammer type VCP-W vacuum circuit breakers, as well as other low, medium and high voltage circuit breakers. Digitrip 3000 Protective Relays are compatible for use with all circuit breakers utilizing a shunt trip coil. Page 16 The description for DIP Switch S6 is not completely clear in it s basic functions. Replace the Switch S6 paragraph under the DIP Switches section of Rear Access Panel with the following. Switch S6 is used to configure the zone interlock input. When the Zone Interlock switch S6 is in the ON position, the zone interlock input is latched for compatibility with low voltage trip units. The latched mode only requires the zone interlock input signal to be present momentarily to prevent the DT-3000 from initiating a zone interlock fast trip. After receiving a zone interlock signal from a downstream device and registering fault current, the latched DT-3000 s protective functions begin timing and initiate a trip if the fault current is still present when the timers expire. When the Zone Interlock switch S6 is in the OFF position, the zone interlock input is unlatched for faster tripping in a breaker failure situation. The unlatched mode requires the zone interlock input signal to be constant to prevent the DT-3000 from initiating a zone interlock fast trip. After receiving a zone interlock signal from a down stream device and registering fault current, the unlatched DT-3000 s protective functions begin timing and initiate a trip if the fault current is still present when the timers expire. If the zone interlock input signal is lost during the timing sequence and the fault current is still present, the DT-3000 will initiate a zone interlock fast trip. Use the latched option for co-ordination with self-powered trip units. Self-powered trip units stop sending the zone interlock signal when the trip signal is issued. Latching of the DT-3000 zone interlock input provides the needed co-ordination time for the downstream breaker to open. DT 3001 / DT 3031 The Drawout Case option on the DT 3000 allows the device to be removed from gear, using a quick disconnect type strategy. The Drawout version maintains the same electrical and operating specification as the standard DT 3000 with the addition of Drawout connector specifications. The Drawout Outer Case consists of two assemblies, a molded plastic outer flange with quick release actuators and locking mechanism and the aluminum housing with terminal blocks. Page 64 The wiring numbers listed on drawing Figure A-2 are incorrectly labeled on the Drawout Inner Chassis. This drawing of the Panel Mounting is provided for mounting measurements only; the wiring numbers listed on the drawing are irrelevant to the user. However, to eliminate any confusion the drawing numbers have been corrected below and match the wiring numbers that have been factory installed. Replace Figure A-2 DT3001 Panel Mounting on page 64 of manual IB17555D with the following drawing: Page A-4 For more information visit: Effective Date: 11/02

5 FUNCTION IMPACC Buffers Relay Configuration Remote open/close Close Relay Config. Zone Interlocking Breaker Input Mode Download Setpoints Reset Reserved ON OFF DT3000 DTMV Open Phase/Gnd. OC/INST Enable Disable Hi Load Alm. Comm. Close Latched Unlatched 52a 52b Enable Disable Auto Manual Addendum to IB17555D IB17555D_Addendum DT-3000 Effective Date: 11/02 Page A Program with Breaker Open/Closed Breaker Input Breaker Input Gnd Zone Out Gnd Zone In Ph Zone Out Ph Zone In 17 Power Supply Input Zone Common 20 Unused A2 Current Input A1 B B1 C C1 G G2 Unused Unused DT 3010 / DT 3020 The Digitrip 3000 with Dual-Source Power Supply (DSPS) is a microprocessor-based feeder overcurrent protective relay designed for ac auxiliary power applications. The DSPS versions, DT3010 and DT3020, include an integral power supply module which: Powers the relay from nominal 120Vac, 50/60Hz (DT3010 model) or 240Vac, 50/60Hz (DT3020 model) auxiliary power, which is normally connected and available. Operates solely from the main current transformers (Ct) during a fault if the normally connected auxiliary ac voltage is not available, like an electromechanical relay or an electronic self-powered relay. Page 71 The specifications for the single-phase current operation of the Dual-Source powered DT3010/3020; style 4D13125G21/G22 has increased from 1.8 X I n or 9A to 2 X I n or 10A. No other specifications have changed. The DT3010/3020 Dual-Source, style 4D13125G21/G22 was put into production 8/16/02 and replaces all earlier dualsource styles. Replace section B3.0 Functional Description on page 71 of manual IB17555D with the following: B3.0 Functional Description The Dual-Source Power Supply contains 1 ac voltage transformer and 3 ac current transformers. The ac voltage transformer is used to supply nominal ac control power to the unit. The current transformers are used to power the unit from the line current. Normally, the unit will operate from the ac auxiliary power. Since this voltage is Effective Date: 11/02 For more information visit: Page A-5

6 IB17555D_Addendum Page A-6 Effective Date: 11/02 DT-3000 Addendum to IB17555D usually obtained from the system containing the circuit that the relay is protecting, a fault on the protected line could cause the ac voltage to drop below an acceptable operating level (below approximately 70 volts for DT3010 and 140 volts for DT3020). All three current transformers secondary are connected in series to supply this power. The DSPS will supply enough power to operate the Digitrip 3000 overcurrent relay in the tripped state with currents greater than 2 per unit rated secondary current, or 10A, in a single-phase. The DSPS will operate with 3- phase currents in a tripped state with currents greater than 1.2 per unit or 6A rated secondary current. NOTE: There will be no effect to the DT3000 relay trip time accuracy when the Dual-Source Power Supply switches from normal ac voltage to fault-current power. Page A-6 For more information visit: Effective Date: 11/02

7 Eaton Corporation Cutler-Hammer business unit 1000 Cherrington Parkway Moon Township, PA USA TD17555D_Addendum / Style # 8163H25H06_Addendum For additional information please call: Power Management Products Center option 1/option Eaton Corporation All Rights Reserved Publication No. 8163H25H06_Addendum November 2002