GE NGV Series - User Manual

INSTRUCTIONS
A-C
UNDERVOLTAGE
RELAY
TYPE
NGV
MODEL
12NGV28B(-)A
EK-45498
INSERT
BOOKLET-GEI-90805
INTRODUCTION
These
instructions
plus
those
included
in
GEI-90805
form
the
instructions
for
this
relay.
DESCRIPTION
Relay
model
NGV28B(-)A
is similar
is
wired
to
studs
15-16
of
an S2
case.
circuits
to
be
brought
out
at
separate
to
model
NGV13B(-)A
except
This
allows
the
wiring
of
case
and
cradle
blocks.
the
coil
circuit
coil
and
contact
The
table
below
lists
the
ratings
presently
available
on
the
NGV28B(—)A relay:
NGV28B(-)A
VOLTS
FREQUENCY
DROPOUT
VOLTS
FORM
CONT.
(HERTZ)
CALIBRATION
RANGE
1
120
60
70
- 100
relay.
Figure
1
of
this
supplement
is
the
internal
connections
diagram for
this
for
the
S2
Figure
2 of
case.
this
suplenient
gives
the
outline
and
panel
drilling
dimensions
POWER
SYSTEMS MANAGEMENT
DEPARTMENT
GENERALS
ELECTRIC
PNILAIELPRIA.
PA.
7iesc
instructions
do
not
purport
to
cover
all
details
or
variations
in
equipment nor
to
provide
for
as
i
pussibJ
ciintinqoncq to be
met
in
connection with
installation,
operation
or
maintenance.
Should
ljrthor
nftcnation
be
desired
or
should
particular proh.lems arise
which
are
not
covered
sufficiently for
the
purcr.laer’s
purposes,
the
matter
should
he
rvferred
to
the
General
Electric
Coyrany.
Tc
the
extant
required
the
product.s
described herein
meet
applicable
ANSI,
lEE’S
and
N74A
standards;
hit
no
sueS
assurance
is
given
with
r.pcct
to
local
codes
and
ordinances
because
they
vary
greatly.

GE NGV Series Specifications