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GE Motor Protection System Control Functions, Inputs, Average Current, Ground Current, Voltage

Models: LM10 Motor Protection System

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SPECIFICATIONSCHAPTER 1: INTRODUCTION

AVERAGE CURRENT

Resolution:

0.1 A

Range:

0.05 to 8 × CT Primary (3200.0 A max.)

Accuracy:

±5% of full scale

GROUND CURRENT

 

Resolution:

0.1 A

Range:

0.0 to 25.0 A

Accuracy:

±0.2A when current < 4.0 A

 

±5% of full scale when current ≥ 4.0A

CURRENT UNBALANCE

 

Resolution:

1%

Range:

0 to 250%

Accuracy:

±5% of full scale

VOLTAGE

 

Resolution:

1 V

Range:

0 to 9000 V

Accuracy:

±5% of full scale

POWER

 

Resolution:

0.1 kW

Range:

0 to 6553.5 kW

Accuracy:

±5% of full scale

POWER FACTOR

 

Resolution:

0.01

Range:

0.5 to 1.0

Accuracy:

±5% of full scale

TRIP HISTORY

 

Trip history:

up to last 10 trips

COUNTERS

 

Motor run hour counter:

up to 65535 hours

1.5.3 Control Functions

STARTER

Starter types:

FVNR, FVR, RV, 2S1W, 2S2W, custom

Power loss autorestart:

restart after power loss of 4 seconds or less

1.5.4Inputs

POWER SUPPLY

Control power:

80 to 145 V AC

Frequency:

50 and 60Hz

CURRENT

 

CT sensor pack:

NEMA starter size 1 to 6 (27 A, 90 A primary)

Sensor Input:

0 to 0.27 V AC

Phase CT input:

0 to 5 A

Phase CT primary:

75, 100, 120, 150, 200, 225, 250, 300, 400, 500, 600, 700,

 

800

1–8

LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL

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Page 14
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GE Motor Protection System Control Functions, Inputs, Average Current, Ground Current, Current Unbalance, Voltage, Power
Page 13 Page 15