Manual

Switch-Pad™ SVR-1 Step Voltage Regulator
Document No. 2.4.114
Revision: 03
Issued: March, 2012
9
Copyright © 2012 Howard Industries, Inc.
CONNECTION DIAGRAMS
*NOTE: Individual bypass and disconnect switches are shown in the diagrams above. Combination switches are avail-
able that perform disconnecting and bypass operations sequentially.
FIGURE 7: Three SVR-1 regulators wye connected in a three-phase four-wire system.
Series Arrester
Shunt
Arrester
S
L
SL
SL SL
S S
L
L
SOURCE
LOAD
1 2
3
Disconnects
Bypass Switch*
Bypass Switch*
A
B
C
N
Bypass Switch*
FIGURE 8: Three SVR-1 regulators delta connected in a three-phase three-wire system.
Bypass Switch*
Bypass Switch*
Bypass Switch*
SOURCE
A
B
C
LOAD
Shunt
Arrester
S
S S
L
L L
SL SL
SL
Series
Arrester
32
FIGURE 5:
Bypass Switch
Neutral
LOAD
Disconnects
Series Arrester
Shunt
Arrester
S
SL
FIGURE 6: Two SVR-1 regulators in an open delta three-
phase system.
Bypass Switch
Disconnects
A
B
C
SOURCE
Bypass Switch
1 2
S S
LL
SLSL
Series Arrester
LOAD



Disconnects