Transformer correction, Using pas, Device options – SATEC PM135 Manual User Manual

Page 80

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‎Chapter 5 Configuring the PM135

General Meter Setup

80

PM135 Powermeter Series

voltages; otherwise, they will be line-to-line voltages.

Transformer Correction

While using external CT meter option, transformer correction allows you
to compensate ratio and phase angle inaccuracies of the user voltage and
current instrument transformers.

The following table lists available options.

Label

Parameter

Options

Default

Description

Ratio V1-V3

V1-V3 voltage
transformer
ratio correction

factor

0.700 to 1.300 1.000

The ratio of the true
transformer ratio to the
marked ratio.

Angle V1-V3

V1-V3
transformer

phase

angle

error, minutes

-600 to 600

0

The phase
displacement, in

minutes, between the
primary and secondary

values. The phase angle
of a voltage transformer

is positive when the
secondary value leads

the primary value.

Ratio I1-I3

I1-I3

current

transformer

ratio correction
factor

0.700 to 1.300 1.000

The ratio of the true
transformer ratio to the

marked ratio.

Angle I1-I3

I1-I3
transformer

phase

angle

error, minutes

-600 to 600

0

The phase
displacement, in

minutes, between the
primary and secondary

values. The phase angle
of a current transformer

is positive when the
secondary value leads

the primary value.

Using PAS

Select General Setup from the Meter Setup menu, and then click on the
Transformer Correction tab.

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