Biddle MEGGER - Page 15

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CONNECTIONS

FOR

TESTING

INSULATION

RESISTANCE

OF

ELECTRICAL

EQUIPMENT

The

following

diagrams

show

how

to

connect

a

“Megger”

Insulation

Tester

to

various

types

of

electrical

equipment.

The

diagrams

also

show

in

principle

how

equipment

must

be

disconnected

from

other

circuits

before

the

instrument

is

connected.

These

illustrations

are

typical

and

will

serve

as

guides

for

testing

insulation

resistance

of

practically

all

types

of

apparatus

and

conductors.

Before

proceeding

with

tests,

read

the

article

on

“Prepara-

tion

of

Apparatus

for

Test,”

page

10.

REMEMBER!

The

“Megger”

Insulation

Resistance

Tester

measures

whatever

resistance

is

connected

between

its

ter-

minals.

This

may

include

series

or

parallel

leakage

paths

through

insulation

or

over

its

surface.

1.

A-C

Motors

and

Starting

Equipment

"MEGGER"

INSULATION

TESTER

SOURCE

FIGURE

8

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