T&R 200A-3PH mk2, Руководство по эксплуатации и техническому обслуживанию

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2.4 Directional relays (in conjunction with DVS3 mk2 voltage source)
Directional relays may be tested using the 200A-3PH mk2 in conjunction with a suitable
voltage source (such as the T&R DVS3 mk2). This procedure will detail the test procedure
using the DVS3 mk2, but may be adapted to other voltage sources.
Figure 2.4 Connections for directional overcurrent relay
The phase locking between a 200A-3PH mk2 and a DVS3 mk2 may be simplified considerably
using the T&R link phase locking lead as shown in figure 2.5.
Figure 2.5 Connections for directional overcurrent relay using T&R Link phase locking
Directional Relay
*Connect relay contacts to
either DVS3 mk2 (to
determine restraint angle)
or 200A-3PH mk2 (to time
overcurrent response)
Rel
a
y
Con
ta
c
ts
*
Rel
a
y
C
u
rre
n
t
Coi
l A
Rel
a
y
C
u
rre
n
t
Coi
l B
Rel
a
y
C
u
rre
n
t
Coi
l C
Rel
a
y
Con
ta
c
ts
*
Rel
a
y
Vo
lta
g
e
c
o
il
Rel
a
y
C
u
rre
n
t
Coi
l A
Rel
a
y
C
u
rre
n
t
Coi
l B
Rel
a
y
C
u
rre
n
t
Co
il C
Rel
a
y
Vo
lta
g
e
c
o
il
Rel
a
y
Con
ta
c
ts