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Instruction Leaflet

I. L. 29-889B

Effective June 2011

Instructions for Digitrip RMS 910 Trip Unit

eaton corporation

www.eaton.com

Table 2. Digitrip RMS 910 Information Functions.

Trip Unit Type

RMS Digitrip 910

Refer to I.L.

Section

Number

Catalog Number

S S S

9 9 9

1 2 3

3 3 3

L L L

I S S

S S S

9 9 9

4 5 6

3 3 3

L L L

I S S

G G I

Suffix Number

91 92 93

94 95 96

Instruction Leaflet No.

I.L. 29-889

4 -- Character LED Display

X X X

1.2

Current Values

1.2.1.1

Phase A Current (la) (kA)

Phase B Current (lb) (kA)

Phase C Current (lc) (kA)

X X X

Ground Current (lg) (kA)

Neutral Current (lg) (kA)

n n n

X X X

1.2.1.1

Voltage Values:

1.2.1.2

Phase (V

) volts

Phase (V

) volts

Phase (V

) volts

X X X

Power, Power Factor and Energy Values

1.2.1.3

Peak Power Demand (MW)

Present Power Demand (MW

Reverse Power Flow

X X

X X X

Power Factor

X X X

1.2.1.3

Energy Consumption (MWh)

Reverse Energy Consumption

X X X

1.2.1.3

Harmonic Currents

1.2.1.4

Total Harmonic Distortion (THD

Per Harmonic

X X X

Local Messages:

Table 3

DISC = DISCriminator

EXTT = EXTernal Trip

GNDT = GrouND Trip

X X X

HILD = HIgh LoaD Alarm

INST = INStantaneous Trip

LDPU = Long-Time Pick-Up

X X X

X X

X X X

X X

X X X

LDT = Long-Time Delay Trip

NPOW = Negative POWer Flow

ORID = OveRIDe Trip

X X X

1 1 1

X X X

1 1 1

ORNG = OveRaNGe Trip

PLUG = Rating PLUG Problem

SDT = Short-Time Delay Trip

X X X

X X

X X X

X X

TEMP = OverTEMPerature Trip

TEST = TEST Ready to Begin

X X X

Table 3

LEGEND: X = Function Included

n = Circuit Breaker Must Be Equipped for Normal Protection.

1 = n/a for Type DS Breakers.

Содержание Digitrip RMS 910

Страница 1: ...Effective June 2011 Supersedes I L 29 889A 5 97 Instruction Leaflet I L 29 889B Instructions for Digitrip RMS 910 Trip Unit...

Страница 2: ...3 4 Short Delay Current Setting 18 3 5 Short Delay Time Setting 18 3 6 Instantaneous Current Setting 18 3 7 No Instantaneous Current Setting 19 3 8 Ground Fault Current Setting 19 3 9 Ground Fault Tim...

Страница 3: ...Figure 15 Short Delay Current Settings 16 Figure 16 Short Delay Time Settings 17 Figure 17 Instantaneous Current Settings 17 Figure 18 Ground Fault Current Settings 17 Figure 19 Ground Fault Time Dela...

Страница 4: ...urrent rating of each circuit breaker The Digitrip RMS 910 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 18...

Страница 5: ...on 1 4 will maintain 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 910 Trip Unit can be RESET in two ways Either pres...

Страница 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 9...

Страница 7: ...n Adj 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...

Страница 8: ...Effective June 2011 Instructions for Digitrip RMS 910Trip Unit eaton corporation www eaton com Figure 3 Digitrip RMS 910 Type Ll Figure 4 Digitrip RMS 910 Type LS Figure 5 Digitrip RMS 910 Type LSI F...

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

Страница 10: ...ppendix A 1 2 Four Character Information Display Window The four digit alpha numeric display window illustrated in Figures 1 and 2 serves two basic purposes instrumentation and mode of trip and troubl...

Страница 11: ...wer Power Factor and Energy Values 1 2 1 3 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 Power Factor X X X X X X 1 2 1 3 Energy Consumption MWh Rev...

Страница 12: ...lug is missing damaged or not well connected If breaker is closed it will trip and the instantaneous override LED will light If breaker is open it will not close 1 3 ROM ERROR Nonfatal memory error Pr...

Страница 13: ...l in Figure 1 Note N The peak demand function requires that 120 VAC control power be sup plied to the Power 1 Relay Module The Present Demand is a power value averaged over approximately one second To...

Страница 14: ...elease of the Step push button will initiate a 3 phase waveform capture internally in the Digitrip and in turn calculate all THD and individual values Notice that two Green LEDs THD and IA are now ill...

Страница 15: ...D OR FAILURE OF THE PROTECTION SYSTEM After installing the Rating Plug press and release the TRIP RESET push button to turn off any illuminated LEDs The purpose of the rating plug is to set the value...

Страница 16: ...the long delay current setting Ir for 40 seconds The 40 second delay allows the system to ride through momentary high load conditions and avoid nuisance alarms Long Delay Available Settings Setting 5...

Страница 17: ...gitrip RMS 910 Trip Unit whenever 120 VAC control power is not available to the Power Relay Module see Section 1 4 When a drawout circuit breaker is equipped with a Digitrip RMS 910 Trip Unit it can b...

Страница 18: ...a breaker is re closed soon after a Long Delay Trip and the current again exceeds the Long Delay Current Setting Ir the LTM automatically reduces the time to trip to allow for the fact that the load...

Страница 19: ...function does reset rather quickly on the 0 1 second setting for example it will reset in 0 5 second 4 Test Procedures 4 1 General Danger DO NOT ATTEMPT TO INSTALL TEST OR PERFORM MAINTENANCE ON EQUI...

Страница 20: ...al three phase circuit If three phase current had been flowing the Trip Unit would actually have performed correctly Use the APM for correct Trip Unit performance whenever single phase current injecti...

Страница 21: ...the TEST current value will be shown in the display window not the actual current flowing in the breaker 5 Reset the Trip Unit by pressing and releasing the Trip Reset push button see Figure 20 All L...

Страница 22: ...r listed in Section 6 The receiving terminal s can be An Assemblies Electronic Monitor AEM or Breaker Interface Module BIM for local or remote monitoring see Figure 22 and references in Section 6 A re...

Страница 23: ...re daisy chained interconnect shielding but do not ground the connection 1 2 watt carbon resistor required at last breaker See T D 17 513 Breaker Interface Monitor BIM OR 810 Typical IBM or IBM Twiste...

Страница 24: ...button 3 To increment the address press and release the Black DEMAND RESET push button near the display window see Figure 1 The address will increase by one unit each time you press the Black DEMAND...

Страница 25: ...I I View Power Energy Values 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 1 2 1 3 I I Energy Consumption MWh Reverse Energy Consumption X X X X X...

Страница 26: ...RIP were initiated due to a Short Time Delay over current condition for example the coded message for SDT would be transmitted by the Trip Unit Once the message is received and interpreted by the soft...

Страница 27: ...Reset command remotely from the master computer by the INCOM lMPACC system is exactly equivalent to pressing and releasing the Trip Reset push button on the front of the Trip Unit In addition to the...

Страница 28: ...ker will trip clearing the fault in 0 5 s CASE 2 There is Zone Selective lnterlocking Fault 3 The branch breaker trip unit will initiate the trip in 0 03 s to clear the fault and Z3 will send an inter...

Страница 29: ...View values of phase currents in Display Window see Figure 1 e g 1 50 kA Note N The phase current shown will be that identified by the green LED see Figure 1 that is turned On assume IA It may not be...

Страница 30: ...t Trip Alarm contact Operator Actions 1 Observe the mode of trip LED and the INST message in the Display Window 2 Press and release the STEP push button to view current values IA IB IC and IG or ID in...

Страница 31: ...31 Instruction Leaflet I L 29 889B Effective June 2011 Instructions for Digitrip RMS 910Trip Unit eaton corporation www eaton com Notes...

Страница 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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