CHAPTER 10: PROGRAMMING GROUP 1

SECONDARY PT VALUES

PT RATIO

FULL SCALE

75 V (Suffix 75) L-N MAX

120:1

9.00 KV

120/208 V

1:1 (Direct)

120.0

120/208 V

4:1

0480 V

120/208 V

120:1

014.4 KV

277/480 V (Suffix G)

1:1 (Direct)

0300 V

120/208V

600:1

072.0 KV

120/208

1150:1

138.0 KV

Table 10-2: TYPICAL Full Scale Settings for Volts

If PT is connected line to line, the full scale can be 14.40 KV. Full scale is 300 V L-N, not 277, because the factory calibration is 300 V. Be sure the table is based on a meter regulation of 2000 A/D counts. Thus, for best accuracy, all settings should be placed within that range.

VOLTAGE FULL SCALE:

To change the Full Scale Settings:

NOTE: Press MAX/MIN/LIMITS at any time to cancel before storing the last digit or switch.

MAX

AC VOLTS

A B C A B C

MIN

N N N B C A

LM1

 

LM2

AC AMPS

 

 

A B C N

 

POWER

 

 

 

 

PF

 

 

 

 

KW

 

 

 

 

KVA

KVAH

KWH

 

FREQ

KVAR

MAX/MIN

VOLTS

AMPS

POWER

PHASE

LIMITS

NEXT

 

Step 1:

a. Enter Group Level of Programming Mode (see Chp. 8).

b. Press MAX/MIN/LIMITS until 1. appears in upper display.

MAX

AC VOLTS

A B C A B

C

MIN

N N N B C A

LM1

 

 

LM2

AC AMPS

 

 

 

 

A B C N

 

 

POWER

PF

KW

KVA

KVAH

 

KWH

 

FREQ

 

KVAR

 

 

 

 

 

 

MAX/MIN

VOLTS

AMPS

POWER

PHASE

LIMITS

 

NEXT

Step 2:

a. Press AMPS to activate GROUP 1.

!10. appears in upper display.

!Middle display indicates Scale Factor Setting.

!Lower display indicates Full Scale for voltage.

60

EPM 5000 series Advanced Power Meters

GE Multilin

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GE EPM 5300, EPM 5200, EPM 5350 instruction manual Voltage Full Scale, To change the Full Scale Settings