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Effective July 2011
Supersedes I.L. 29-888A 5/97

Instruction Leaflet 

I. L. 29-888B

Instructions for Digitrip RMS 810 Trip Unit

BCS Switchgear Inc.

Switchgear | Circuit Breakers | Parts | Tech Support

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Summary of Contents for Cutler-Hammer Digitrip RMS 810

Page 1: ...persedes I L 29 888A 5 97 Instruction Leaflet I L 29 888B Instructions for Digitrip RMS 810 Trip Unit BCS Switchgear Inc Switchgear Circuit Breakers Parts Tech Support bcsswitchgear com 888 599 0486 N...

Page 2: ...7 No Instantaneous Current Setting 18 3 8 Ground Fault Current Setting 18 3 9 Ground Fault Time Delay Setting 19 4 Test Procedures 19 4 1 General 19 4 2 When To Test 19 4 3 Testing Provisions 20 4 4...

Page 3: ...lay Time Settings 18 Figure 17 Instantaneous Current Settings 18 Figure 18 Ground Fault Current Settings 18 Figure 19 Ground Fault Time Delay Settings 19 Figure 20 Integral Test Panel Lower Right Corn...

Page 4: ...uit breaker The Digitrip RMS 810 Trip Unit is designed for use in industrial circuit breaker environments where the ambient temperatures can range from 20 C to 85 C 4 F to 185 F and rarely exceed 70 t...

Page 5: ...in the LED RED and will continue to send a TRIP signal to LOCKOUT the circuit breaker until the Trip Unit is RESET The Digitrip RMS 810 Trip Unit can be RESET in two ways Either press and release the...

Page 6: ...l control power to operate its protection systems It operates from current signal levels and control power derived through current sensors inte grally mounted in the circuit breaker The Digitrip RMS 8...

Page 7: ...Current Setting Pick up Adj Time Delay Setting Opt I Squared T Curve Shape Opt Zone Interlocking Ground Fault Time Memory X X X X X X X X X X X X X X X 3 8 3 9 3 9 1 1 5 3 9 Trip Unit Over Temp TRIP X...

Page 8: ...Effective July 2011 Instructions for Digitrip RMS 810Trip Unit eaton corporation www eaton com Figure 3 Digitrip RMS 810 Type LI Figure 4 Digitrip RMS 810 Type LS Figure 5 Digitrip RMS 810 Type LSI F...

Page 9: ...e non adjustable release is pre set at eleven 11 times the installed rating plug current In The DlScriminator is enabled for approximate ly ten 10 cycles following the initial current flow through the...

Page 10: ...D TIME DELAY COORDINATION ONLY IS INTENDED THE ZONE INTERLOCKING TERMINALS MUST BE CONNECTED WITH JUMPER WIRES AS SPECIFIED ON THE CONNECTION DIAGRAMS FOR YOUR BREAKER SEE SECTION 6 SO THE TIME DELAY...

Page 11: ...Power and Energy Values 1 2 1 2 Peak Power Demand MW Present Power Demand MW Reverse Power Flow X X X X X X X X X X X X X X X X X X Energy Consumption MWh Reverse Energy Consumption X X X X X X X X X...

Page 12: ...will trip and the instantaneous override LED will light If breaker is open it will not close 1 3 ROM ERROR Nonfatal memory error Protection functions still operate but may be up to 12 out of tolerance...

Page 13: ...breaker positive flow of power If the power flows in the opposite direction i e bottom to top the value of power will not be displayed continuously Instead the power value in the display window will a...

Page 14: ...ttings without having to remove the circuit breaker from its enclosure For example if one expects a circuit to carry 600 A initially but then increase to 1400 A in the future one could initially insta...

Page 15: ...IP RELAY ALARMS MAY BE ERRATIC OR NONFUNCTIONAL IF WRONG VOLTAGE IS USED The relays operate when the Trip Unit detects the following condi tions as shown in Figure 2 Short Circuit Trip Alarm High Load...

Page 16: ...TESTS ON THE CIRCUIT BREAKER SEE ALSO THE SPECIFIC DIELECTRIC TEST PROCEDURES IN THE APPLICABLE CIRCUIT BREAKER INSTRUCTION LEAFLET LISTED IN SECTION 6 Figure 12 Auxiliary Power Module 1 6 Auxiliary...

Page 17: ...In Multiples of Rating Plug Amperes Ir Ir Ir In I n Ir 3 3 Long Delay Time Setting There are eight 8 available Long Delay Time Settings as illustrated in Figure 14 ranging from 2 to 24 seconds These...

Page 18: ...ts please see Sections 1 1 3 DlScriminator High initial Current Release and 1 1 4 OVERRIDE Fixed Instantaneous for available fast acting high short circuit pro tection 3 8 Ground Fault Current Setting...

Page 19: ...LED SEE FIGURE 11 AND INSTRUCTIONS FOR TESTING YOUR SPECIFIC CIRCUIT BREAKER LISTED IN SECTION 6 PTM OR TRIP UNIT DAMAGE OR FAILURE CAN RESULT FROM ENERGIZING PTM AT MORE THAN 600 VOLTS VERIFY THAT NO...

Page 20: ...o perform all of its Protection Functions with out the external control power and without the display and commu nication functions available results of the tests could be confusing When performing a s...

Page 21: ...At least one of the various protection settings will be less than 6x In and the circuit breaker will trip the LED related to that function will light RED and the reason for TRIP code will appear in t...

Page 22: ...ee Figure 1 The address will increase by one unit each time you press the Black DEMAND RESET push button If you press and hold the Black DEMAND RESET push button the address will increase continuously...

Page 23: ...IBM Twisted Pair No 18 AWG See Section 5 5 Cut off Shield at last Device Do Not Ground Breaker with RMS 810 Trip Unit 3 View A Refer to circuit breaker connection diagrams referenced in Section 6 for...

Page 24: ...he appropriate data decode and display it in a useful manner Following an over current trip operation the sequence of coded data varies slightly The cause of trip and the value and phase or ground cur...

Page 25: ...ues Phase A Current IA kA Phase B Current IB kA Phase C Current IC kA X X X X X X X X X X X X X X X X X X 1 2 1 1 I I Ground Current IG kA Neutral Current ID kA n n n X X X I 1 2 1 1 View Power Energy...

Page 26: ...LOCATION BY THE COMMUNICATIONS NETWORK CAN CAUSE PERSONAL INJURY TO MAINTENANCE PERSONNEL WORKING IN THE IMMEDIATE VICINITY OF THE CIRCUIT BREAKER PROVIDE PERMISSIVE CONTROL SWITCHES OR OTHER MEANS L...

Page 27: ...32 870 Typical Time Current Characteristic Curves for Types DS II and DSL II Circuit Breakers SC 5619 Instantaneous I SC 5620 Long Delay and Short Delay LS SC 5621 Ground G 1A33600 Connection Diagram...

Page 28: ...he event that the feeder breaker Z2 would not clear the fault the main breaker Z1 will clear the fault in 0 5 s as above Fault 1 There are no interlocking signals The main breaker trip unit will initi...

Page 29: ...ote N As the current approached the overload condition prior to the overload trip operation the following Trip Unit indications would have been visible The HILD message would begin to flash in the win...

Page 30: ...30 Instruction Leaflet I L 29 888B Effective July 2011 Instructions for Digitrip RMS 810Trip Unit eaton corporation www eaton com Notes...

Page 31: ...31 Instruction Leaflet I L 29 888B Effective July 2011 Instructions for Digitrip RMS 810Trip Unit eaton corporation www eaton com Notes...

Page 32: ...etween the parties This literature is not intended to and does not enlarge or add to any such contract The sole source governing the rights and remedies of any purchaser of this equipment is the contr...

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