41-973.5R
19
Type PM Line of Relays For Pilot Wire Monitoring
And Transferred Tripping
Fi
gure
10
:
Int
er
n
a
l Sc
he
ma
tic
of
the
T
y
pe PM
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in
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-21
cas
e
.
F
ig
u
re 11
:
In
ter
n
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l Sch
e
m
a
ti
c o
f the
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y
pe
PM-3
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e
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y
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th
e F
T
-1
1 c
a
s
e
.
Su
b 4
1
84A4
8
9
Sub
2
18
4A4
8
4