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Low Voltage Power & Insulated Case Circuit Breakers Section 8

Power Break ™ II Circuit Breakers Trip Unit Characteristics EntelliGuard ™ TU Trip Unit Characteristics Long Time

Short Time

Frame Max.

Sensor Rating

Current Setting (C ) (Pick-Up)

Delay 2 (Seconds)

Pick-up (Multiple

Envelope

Ampere Rating

Multiple of Rating Plug Amperes (X)

Size

(Amperes) (S)

Thermal Type (C-Bands) Fuse Type (F-Bands)

of Current Settings (C)

Delay (Seconds)

800

800 200, 400, 800

0.20 0.60 1.21 1.61 2.41 3.21 4.02 4.82 5.62 6.43 7.23 8.04 9.64

0.025 0.025 0.025 0.032 0.044 0.059 0.078 0.100 0.130 0.170 0.220 0.270 0.350 0.440 0.550 0.690 0.870 1.100

I 2 T in 1

Minimum - .046 Intermediate- .186 Maximum - .418

1600

1600 800, 1000, 1600

0.5 thru 1.0 in

Increments of 0.05

1.5 thru 9.0 in

2000

2000

2000

Increments of 0.5

I 2 T out 2

.025, .033, .042, .058, .092, .117, .158, .183,

2500 1000, 2000, 2500

3000

11.20 12.90 14.50 16.10 17.70 19.30

.217, .350, .417

3000

3000

4000

4000

4000

Trip Unit Characteristics (continued)

Ground Fault

Adjustable Instantaneous Adjustable Instantaneous Pick-Up without ST Pick-Up with ST

Pick-Up (Multiple

of Sensor Ampere Delay with I 2 T Slope

Fixed Delay 0.058 0.092 0.117 0.158 0.183 0.217 0.350 0.517 0.617 0.717 0.817 0.917

Envelope

(Multiple of Rating Plug Amperes) (X)

(Multiple of Rating Plug Amperes) (X)

Size

RELT without ST RELT with ST

Rating)

in Seconds

Bands

2.0 thru 10.0 in 0.5 increments 2.0 thru 10.0 in 0.5 increments 2.0 thru 10.0 in 0.5 increments 2.0 thru 10.0 in 0.5 increments 2.0 thru 9.0 in 0.5 increments

2.0 thru 15.0 in 0.5 increments 2.0 thru 15.0 in 0.5 increments 2.0 thru 15.0 in 0.5 increments 2.0 thru 13.0 in 0.5 increments 2.0 thru 9.0 in 0.5 increments

1.5 thru 10.0 in 1.5 thru 15.0 in 0.20 thru 0.60 in

800

0.5 increments

0.5 increments increments of 0.01

I 2 t - .385

1.5 thru 10.0 in 1.5 thru 15.0 in 0.20 thru 0.60 in

1600

0.5 increments

0.5 increments increments of 0.01

I 4 T - .179

.44 at 200% of

1.5 thru 10.0 in 1.5 thru 13.0 in 0.20 thru 0.60 in pick-up at lower

2000

0.5 increments

0.5 increments increments of 0.01

level of band SGF - .553 0.417

1.5 thru 10.0 in 1.5 thru 13.0 in 0.20 thru 0.37 in

3000

0.5 increments 1.5 thru 9.0 in 0.5 increments

0.5 increments increments of 0.01 1.5 thru 9.0 in 0.20 thru 0.30 in 0.5 increments increments of 0.01

4000

Additional Features and Characteristics of the EntelliGuard ™ TU Trip Unit

Trip Unit Character 9

Function

Description

1 2 3 4 5 6 7 8 9 X A 3

B 3

C 3

D 3

E 3

Metering Communications Amperes (A, kA) 2

•

•

• • • • • • • •

• •

• • • • • • • • • • • • • • • •

Modbus Communications Bus Link Selectable Phase Current ± 2.5%

• •

• • • • • • • • • • • • • • • • • • • • •

•

• • • • • • •

• • • • • • •

Voltage (V)

L-L or L-N Volts ±1.5%

Energy (kWh,MWh,GWh) Real Power (kW/MW) Total Power ( kVA/MVA)

Total Energy Usage on Brkr ± 4%

L-L or L-N Power ± 4% L-L or L-N Power ± 4% Circuit Frequency ± 1Hz

Frequency (Hz)

Demand & Peak Demand (kW)

Relaying Under Voltage Trip

Adjustable pickup, 50-90%

•

•

•

•

Adjustable delay, 1-15 seconds OFF

Adjustable pickup, 110-150%

Over Voltage Trip

•

•

•

•

Adjustable delay, 1-15 seconds OFF

Adjustable pickup, 10-50%

Voltage Unbalance

•

•

•

•

Adjustable delay, 1-15 seconds OFF Adjustable pickup, 10-990kW Adjustable delay, 1-15 seconds OFF

Current Unbalance

•

•

•

•

Power Reversal Direction

Data Acquisition - Waveform Capture

•

• •

• •

RELT

• •

• • •

3 Used when Ground Fault Alarm is needed via the output contact.

Additional Features and Characteristics of the EntelliGuard ™ TU Trip Unit Trip Unit Character 3 Zone Selective Interlocking Power Break ™ II Z ZSI, Short time and GF; user selectable • T Z + IOC ZSI; user selectable • 1 X NONE SELECTED • 1 Instantaneous out only. 2 Time delay shown at lower limit of each band. All pick-up tolerances are ±10%.

Rev. 1/19 Data subject to change without notice

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