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ToSHIEA
6F9EOO90
4.4
Transformers
To use this current relay for detecting overcurrent on
transformers.
it is necessary to set the detection delay
tiler
with the inrush current of
transforeer
taken into consideration.
4.5 Heaters,
LauDs
and other Circuits
This relay can be used to detect the disconnection of
circuits by sensing the existence of current flow.
In other
words, if disconnection occurs, current does not flow and an
undercurrent condition is detected by the relay.
For
exaeDle.
this relay can be used to detect the disconnection of heater
circuits on constant
temperature
ovens or heatar circuits for
insulators on transmission and distribution facilities In
extremely cold regions.
5. Hount ing
See Fig. 4 for uounting dieensions. Be careful not to use this
relay in the following conditions:
(1)
Locations in aebient
teeperatures
outside -10
-
+SO”C.
(2)
Locations
subject
to high
teeDeratUre,
steal
or dripping water,
(3)
Dusty/dirty locations,
(4)
LOCatiOnS
subject to vibration
(total
amplitude
2.5~
or
eore,
20
tiles/m.
or
aore)
and shock (above
156
in 3 directions).
4
8
z
-
lo-