Eaton NRX Digitrip 1150 Manual

Effective September 2013 Series NRX

Instructional Leaet IL01301064E

Operating Manual for Series NRX

Digitrip Trip Units 1150 / 1150i

1600 NRX SUB-TITLE IMAGE (12/15/2010)

Series NRX,Type NF Frame

ANSI, UL1066, UL489 / IEC, IZMX16, IZM91

Series NRX, Type RF Frame

IEC, IZMX40

4000 NRX RF DRAWOUT SUBTITLE IMAGE(12/15/2010)

Instructions apply to:

Effective September 2013

2EATON www.eaton.com

Instructional Leaet IL01301064E Operating Manual for Series NRX

DigitripTrip Units 1150 / 1150i

TABLE OF TABLES

Description page

Table 1. Digitrip 1150/1150i Trip Units Functions ...............................6

Table 2. Current Protection Functions .....................................6

Table 3. Protective Relay Functions ........................................7

Table 4. Alarms .......................................................8

Table 5. Current Voltage Frequency Metering Data ............................9

Table 6. Power and Energy Metering Data...................................9

Table 7. Metered Power Quality System Data ...............................10

Table 8. Event Recording ...............................................11

Table 9. Event Recording continued .......................................12

Table 10. Series NRX/Digitrip Ground Fault Sensing Modes ....................18

Table 11. Series NRX NF Frames and Rating Plugs ...........................34

Table 12. Series NRX RF Frames and Rating Plugs ...........................35

TABLE OF CONTENTS

Description page

Section 1: Introduction ..................................................5

Section 2: Specification Tables ............................................6

Section 3: General description ...........................................13

Section 4: Principles of operation .........................................16

Section 5: Display Module Interface .......................................20

Section 6: Programming Settings .........................................24

Section 7: Test procedures ..............................................28

Section 8: Record keeping ..............................................31

Section 9: Trip unit battery...............................................33

Section 10: Frame ratings and rating plugs ..................................34

Section 11: Maintenance Mode feature ....................................35

Section 12: References .................................................36

Section 13: Time-current curves ..........................................36

Section 14: Communications.............................................37

Appendix A: Zone Selective Interlocking Examples ...........................38

Appendix B: Troubleshooting .............................................40

Appendix C: Electrical Specifications ......................................42

Appendix D: Display, Indicators and Menus .................................43

Appendix E: Power and Power Factor Sign Conventions .......................92

Appendix F: Setpoint Defaults and Worksheet ...............................94

EATON www.eaton.com

Effective September 2013

Instructional Leaet IL01301064E

Operating Manual for Series NRX

DigitripTrip Units 1150 / 1150i

TABLE OF FIGURES

Description page

Figure 1. Digitrip 1150 Trip Unit With Rating Plug and Frame Module...............5

Figure 2. NRX NF Circuit Breaker with Digitrip 1150............................5

Figure 3. Series NRX NF Frame Phase Current Sensor ........................13

Figure 4. Trip Unit Installation on a Frame Module ...........................14

Figure 5. Installation of the Rating Plug into the Trip Unit.......................14

Figure 6. Trip Unit Locking Tabs ...........................................15

Figure 7. Frame Module With Trip Unit Removed .............................15

Figure 8. Block Diagram With Breaker Interface ..............................16

Figure 9. Series NRX RF Frame Neutral Sensor ..............................18

Figure 10. Series NRX NF Frame Neutral Sensor .............................18

Figure 11. Trip Unit and Display Module.....................................20

Figure 12. Trip Unit Indicators (LSIG style with Maintenance Mode) ..............20

Figure 13. Display Module Push Buttons ...................................21

Figure 14. Long Delay Time Setting Bands for I2t settings ......................24

Figure 15. Short Delay Time Setting Bands - Flat and I2t .......................25

Figure 16. Functional Test Kit.............................................28

Figure 17. Connections for Single-Pole, Single-Phase Current Tests ...............30

Figure 18. Connections for Single-Phase Current Tests With Two Poles in Series ....30

Figure 19. Typical Trip Function Record Nameplate ............................31

Figure 20. Automatic Trip Operation Record .................................31

Figure 21. Typical Performance Test Record Form .............................32

Figure 22. Digitrip Battery Installation ......................................33

Figure 23. CAM Module................................................37

Figure 24. Example of Interlocking with Three Zones ..........................39

Figure 25. ZSI Example With Mains (M1, M2) and Tie (T) Circuit Breakers .........39

Figure 26. IEC Sign Convention Phasor Diagram .............................92

Figure 27. IEEE Sign Convention Phasor Diagram.............................93

Figure 28. IEEE Direct Mathematical Sign Convention Phasor Diagram ...........93

Operating Manual for Series NRX

DigitripTrip Units 1150 / 1150i

4EATON www.eaton.com

Effective September 2013

Instructional Leaet IL01301064E

• WARNING

DANGEROUS ELECTRICAL VOLTAGE!

DO NOT ATTEMPT TO INSTALL OR PERFORM MAINTENANCE ON

EQUIPMENT WHILE IT IS ENERGIZED. DEATH OR SEVERE INJURY CAN

RESULT FROM CONTACT WITH ENERGIZED EQUIPMENT. ALWAYS

VERIFY THAT NO VOLTAGE IS PRESENT BEFORE PROCEEDING.

ALWAYS FOLLOW SAFETY PROCEDURES. EATON IS NOT LIABLE FOR

MISAPPLICATION OR MISINSTALLATION OF ITS PRODUCTS.

Before commencing any installation

• Disconnect the power supply of the device

• Ensure that devices cannot be accidentally closed or

powered up

• Verify isolation from the supply, Earth, and short circuit

• Cover or enclose neighboring units that are live

• Danger if circuit breaker mechanism spring is charged!

• Discharge spring

• Follow the engineering instructions of the device concerned

• Only suitably qualified personnel in accordance with

applicable national work safety regulations may work on this

device/system

• Before installation and before touching the device ensure

that you are free of electrostatic charge

• Connecting cables and signal lines should be installed so

that inductive or capacitive interference do not impair the

automation functions

• Suitable safety hardware and software measures should

be implemented for the I/O interface so that a line or wire

breakage on the signal side does not result in undefined

states in the automation devices and create an unwanted

action in the circuit breaker

• WARNING

OBSERVE ALL RECOMMENDATIONS, NOTES, CAUTIONS, AND

WARNINGS RELATED TO THE SAFETY OF PERSONNEL AND

EQUIPMENT. OBSERVE AND COMPLY WITH ALL GENERAL AND

LOCAL HEALTH AND SAFETY LAWS, CODES, AND PROCEDURES.

• Deviation of the mains voltage from the rated value

must not exceed the tolerance limits given in the

specifications, otherwise this may cause malfunction and

dangerous operation

• Emergency stop devices complying with IEC 60204-

1, EN 60204-1 must be in all operating modes of the

automation devices. Unlatching the emergency-stop

devices must not cause restart

• The electrical installation must be carried out in

accordance with the relevant regulations (e.g. with

regard to cable cross section size, fuses, and earthing

(PE)

• All work relating to transport, installation, commissioning

and maintenance must be carried out by qualified

personnel in accordance with applicable national work

safety regulations

Note: The recommendations and information contained herein are

based on experience and judgement, but should not be considered to

be all inclusive or to cover every application or circumstance that may

arise.

If you have any questions or need further information or

instructions, please contact your local Eaton representative or

visit www.Eaton.com.

EATON www.eaton.com

Section 1: Introduction

Figure 1. Digitrip 1150 Trip Unit With Rating Plug and Frame

Module

This instruction book specifically covers the application of

Digitrip 1150 and 1150i trip units installed in the Series NRX-NF

frame or Series NRX-RF frame circuit breakers.

The styles of trip units consists of the Digitrip 1150 for

compliance with UL/ANSI standards and the 1150i for the IEC

standards applications.

The Digitrip 1150 and 1150i trip units may be applied on either

50 and 60 Hz systems.

The Digitrip 1150/1150i trip unit system consists of 3 parts, the

frame, the trip unit and the display. The frame module is fixed

to the circuit breaker. This module is matched to the frame

interruption rating and sensors of the circuit breaker and should

not be changed. The trip unit module contains the Digital

Signal Processor (DSP) that performs the measurements and

calculations for protection and metering. The display module

is the user interface and requires external control power to

operate.

The Digitrip 1150/1150i trip units work with either the current

sensors of the NF or RF frame Series NRX circuit breakers. The

appropriate rating plug must be matched to the frame and style

of circuit breaker that the trip unit is applied to.

Effective September 2013

Instructional Leaet IL01301064EOperating Manual for Series NRX

DigitripTrip Units 1150 / 1150i

Figure 2. NRX NF Circuit Breaker with Digitrip 1150

6EATON www.eaton.com

Table 1. Digitrip 1150/1150i Trip Units Functions

Trip Unit Type Digitrip 1150 Digitrip 1150i

Ampere range NF Frame 400 –1200A

RF Frame 800 – 3200A

NF Frame 400 – 1600A

RF Frame 800 – 4000A

Ordering catalog number N11RLSIG, N11RLSI, N11RLSIA, N11LSIG,

N11LSI, N11LSIA

N11IEC, N11IECEF, N11RIEC, N11RIECEF

Available styles LSI, LSIA, LSIG LSI, LSIG

System frequency 50 or 60 Hz 50 or 60 Hz

RMS sensing ••

Relays - Programmable for alarms or trips 2 2

Communications • •

Display - LCD Color Graphic • •

Table 2. Current Protection Functions

Current Protection and Coordination Digitrip 1150/1150i Step Size

Protection Fixed rating plug (In)

Overtemperature trip

•

Long delay protection Slope

Long delay pickup

I2t, I4t

IEEE - MI, IEEE - VI, IEEE - EI l

IEC-A, IEC-B, IEC-C k

50 – 100% x (In) 5%

Long delay time @6 x (I

) I2t

Long delay time @6 x (I

) I4t

Time Dial Multiplier IEC slope

Time Dial Multiplier IEEE slope

Long delay thermal memory (only on I2t and I4t slopes)

2 – 24 seconds

1 –5 seconds

0.05 – 1

0.1 – 5

Enable / Disable

500 ms

0.05

0.01

Short delay protection Short delay slope

Short delay pickup

Short delay time at 8 x (I

) I2t

Short delay time flat

Short delay zone interlock

Flat, I2t

200 – 1000% x (I

)

0.10 – 0.50 seconds

•

(option)

50%

5 ms

Instantaneous protection Instantaneous pickup

OFF setting

Making current release

200 – 1200% x (In)

•

50%

Neutral protection 4th pole or external neutral trip 50, 100, 150, 200%

Ground (earth) fault

protection (option)

Ground fault pickup

OFF position

Ground fault delay at 0.625 x (I

) I2t

Ground fault delay flat

Ground fault zone interlock

Ground fault thermal memory

24 – 100% x (I

) j

•k

0.10 – 0.50 seconds

•

(option)

Enable / Disable

50 ms

Maintenance mode

protection (ARMS)

(option)

Setting

Contact for remote Indication of mode

Maintenance mode pickup

On, Off / remote enable

•

NF Frame: 1000A – 5000A = Pickup

RF Frame: 4000A – 20000A = Pickup

1000A

4000A

Current unbalance

protection trip

Current unbalance pickup

Current unbalance time delay

Off, 5% – 25%

0 – 240 seconds

1 second

Phase loss protection -

current based trip

Phase loss setting

Phase loss time delay

On, Off

1 – 30 seconds 1 second

jDigitrip 1150 ANSI/UL versions are limited to 1200A to comply with UL and NEC® standards.

kOnly available on Digitrip 1150i versions

lOnly available on Digitrip 1150 versions

Section 2: SpecicationTables

Effective September 2013

Instructional Leaet IL01301064E Operating Manual for Series NRX

DigitripTrip Units 1150 / 1150i

Table 3. Protective Relay Functions

Protection Digitrip 1150/1150i Step Size

Voltage Protection

Voltage trip protection (Line to Line) Enable, Disable

Undervoltage trip Off, 90 - 670 V 1 volt

Undervoltage time 1 - 250 seconds 1 second

Overvoltage trip Off, 180 - 720 V 1 volt

Overvoltage time 1 - 250 seconds 1 second

Voltage unbalance trip Off, 5% - 50% 1%

Voltage unbalance time 1 - 250 seconds 1 second

Frequency Protection

Frequency trip protection Enable, Disable

Underfrequency trip Off, 45 - 65 Hz 0.1 Hertz

Underfrequency time 0.20 - 5.0 seconds 0.02 seconds

Overfrequency trip Off, 45 - 65 Hz 0.1 Hertz

Overfrequency time 0.20 - 5.0 seconds 0.02 seconds

Power Quality Protection

Reverse Power Pickup Off, 1 - 65500 kW 1 kW

Reverse Power Time Delay 1 - 60 seconds 1 second

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Effective September 2013

Instructional Leaet IL01301064EOperating Manual for Series NRX

DigitripTrip Units 1150 / 1150i

8EATON www.eaton.com

Effective September 2013

Instructional Leaet IL01301064E Operating Manual for Series NRX

DigitripTrip Units 1150 / 1150i

Table 4. Alarms

Alarm Type Digitrip 1150/1150i Step Size

Alarms - Current

High load alarm setting Off, 50% - 100% x (I

)5%

High load alarm time delay 1 - 60 seconds 1 second

Amp unbalance alarm setting Off, 5% - 25% x (I

)1%

Amp unbalance alarm time delay 0 - 240 seconds 1 second

Neutral ampere alarm setting Off, 10% - 100% 5%

Neutral ampere alarm time delay 1 - 60 seconds 1 second

Ground alarm Off, 10% - 100% Style LSIG or LSIA only 1%

Ground alarm time delay 100 ms

–

Alarms - Voltage

Voltage Alarms Enable, Disable

Undervoltage alarm Off, 90 - 670V 1 volt

Undervoltage alarm time 1 - 250 seconds 1 second

Overvoltage alarm Off, 180 - 720V 1 volt

Overvoltage alarm time 1 - 250 seconds 1 second

Voltage unbalance alarm Off, 5% - 50% 1 %

Voltage unbalance alarm time 1 - 250 seconds 1 second

Phase rotation alarm Off, ABC, CBA

–

Alarms - Frequency

Frequency Alarms (based on Van) Enable, Disable

Underfrequency alarm Off, 45 - 65 Hz 0.1 Hz

Underfrequency alarm time 0.20 - 5.0 seconds 20 ms

Overfrequency alarm Off, 45 - 65 Hz 0.1 Hz

Overfrequency alarm time 0.20 - 5.0 seconds 20 ms

Alarms - Power Quality

Power Alarms Enable, Disable

kW Demand Setting off, 1- 65500 kW 1 kW

kW Demand Time Delay 1 - 60 seconds 1 second

kVA Demand Setting off, 1 - 65500 kVA 1 kVA

kVA Demand Time Delay 1 - 60 seconds 1 second

Reverse Power Setting off, 1 - 65500 kW 1 kW

Reverse Power Time Delay 1 - 60 seconds 1 second

Power Factor Setting off, 50% - 95% 5 %

Power Factor Time Delay 1 - 60 seconds 1 second

THD Setting off, 10% - 30% 1 %

THD Time Delay 1 - 60 seconds 1 second

Alarms - System Diagnostics

Status/long pickup LED •

Cause of trip LEDs j•

Alarm LED •

Operation count alarm Off, 1 - 12500 counts 1 count

jFour cause of trip LEDs indicate LONG, SHORT, INST, or GROUND trip. Making Current Release protection trip is indicated by the Instantaneous LED

Table 5. Current Voltage Frequency Metering Data

Current Metering Units Accuracy Notes

IA, IB, IC, IN, IG Amperes ±1% of

Reading j

IA, IB, IC, IN, IG

(min.)

Amperes ±1% of

Reading jl

Group values held until reset

IA, IB, IC, IN, IG

(max.)

Amperes ±1% of

Reading jl

Group values held until reset

IA, IB, IC, IN, IG

(demand)

Amperes ±1% of

Reading jl

Window 5 - 60 minutes

Sliding or Fixed

IA, IB, IC, IN, IG

(demand max)

Amperes ±1% of

Reading jl

Group values held until reset

Current Metering Range Notes

Current Unbalance --- 0 - 100%

Voltage Metering Units Accuracy Notes

VAB, VBC, VCA Volts ±1% of

Reading k

Line to Line Voltage

VAB, VBC, VCA

(min)

Volts ±1% of

Reading k

VAB, VBC, VCA

(max)

Volts ±1% of

Reading k

VAN, VBN, VCN Volts ±1% of

Reading k

Line to Neutral Voltage

VAN, VBN, VCN

(min)

Volts ±1% of

Reading k

VAN, VBN, VCN

(max)

Volts ±1% of

Reading k

Frequency

Metering Units Accuracy Notes

Frequency Hz ±0.2 Hz of

Reading k

Range is 20 to 255 Hz

Frequency (min)) Hz ±0.2 Hz of

Reading k

Value held until reset

Frequency (min)) Hz ±0.2 Hz of

Reading k

Value held until reset

jAccuracy applicable for 5 to 100% of Inand current will start metering at 2% of rating plug

kApplicable to the voltage range of 34 to 690 Vac.

lAll currents share a common configured demand window. All powers share a common configured demand window.

EATON www.eaton.com

Effective September 2013

Instructional Leaet IL01301064E

Operating Manual for Series NRX

DigitripTrip Units 1150 / 1150i

Table 6. Power and Energy Metering Data

Power Metering Units Accuracy Notes

Power kW ±2% of Reading

Approximately 1- second

update

kVA kVA ±2% of Reading

Approximately 1- second

update

kvar kvar ±2% of Reading

Approximately 1- second

update

Demand kW kW ±2% of Reading

jkl

Window 5 - 60 minutes

Sliding or Fixed

Demand (max). kW kW ±2% of Reading

jkl

Value held until reset

Demand kVA kVA ±2% of Reading

jkl

Window 5 - 60 minutes

Sliding or Fixed

Demand (max). kVA kVA ±2% of Reading

jkl

Value held until reset

Demand kvar kvar ±2% of Reading

jkl

Window 5 - 60 minutes

Sliding or Fixed

Demand (max) kvar kvar ±2% of Reading

jkl

Value held until reset

Power Metering Range Notes

PF (power factor) --- 0 - ±1.00

PF (min. absolute) --- 0 - 1.00 Value held until reset

PF (max. absolute) --- 0 - 1.00 Value held until reset

Energy Metering Units Accuracy Notes

Energy kWh kWh ±2% of Reading

Total

Energy fwd kWh kWh ±2% of Reading

Forward

Energy rev kWh kWh ±2% of Reading

Reverse

kVAh kVh ±2% of Reading

Net Reactive

Metering

Configuration

Settings Notes

Reverse Feed

Configuration

Normal or Reverse Line to load is normal and

the default setting

Energy Log Interval Off, 5, 10, 15, 20, 30, 60

minutes

Table 7. Metered Power Quality System Data

Harmonics Range Notes

Crest Factor IA 1.0 - 64 Peak divided by the RMS

Crest Factor IB 1.0 - 64

Crest Factor IC 1.0 - 64

Crest Factor IN 1.0 - 64

THD IA 0 - 6300% Total Harmonic Distortion

THD IB 0 - 6300%

THD IC 0 - 6300%

THD IN 0 - 6300%

Individual Harmonic

Current Data

IA Harmonics from 1 to 31 0 - 100% Phase A current

IB Harmonics from 1 to 31 0 - 100% Phase B current

IC Harmonics from 1 to 31 0 - 100% Phase C current

IN Harmonics from 1 to 31 0 - 100% Neutral current

Individual Harmonic Line to

Line Voltage Data

VAB Harmonics from 1 to 31 0 - 100%

VBC Harmonics from 1 to 31 0 - 100%

VCA Harmonics from 1 to 31 0 - 100%

Individual Harmonic Line to

Neutral Voltage Data

VAN Harmonics from 1 to 31 0 - 100%

VBN Harmonics from 1 to 31 0 - 100%

VCN Harmonics from 1 to 31 0 - 100%

Effective September 2013

Instructional Leaet IL01301064E Operating Manual for Series NRX

DigitripTrip Units 1150 / 1150i

10 EATON www.eaton.com

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