–5–
M-0329B Instruction Book
TB1
120 V
1
2
3
4
M-0329
TB1
M-0329
1
2
3
4
LDC VOLTAGE
120 V POWER
Figure 5
Power and Voltage Input Connections
TAPCHANGER CONTROL
90
MOTOR
SUPPLY
R
L
L
c
R
LOWER
BLK RAISE
BLK LOWER
11
12
*
*
6
7
9
10
90 B.U.
C
84R
84L
}
Limit switcher, auxiliary contacts as
required in motor control circuits.
84R - Raise Motor Auxiliary Relay
84L - Lower Motor Auxiliary Relay
1
120 Vac
POWER
2
3
4
Voltage
14
15
Alarm
■
■
■
■
■
NOTE
: *If first customer protection is not required, delete these connections.
Figure 6
M-0329B Interconnections with Beckwith Tapchanger Controls and Regulator
4.1
Application
The M-0329B can be used in many applications
not related to LTC backup for a very accurate
overvoltage and/or undervoltage relay. The Block
Raise (
BLK R
) and the Block Lower (
BLK L
)
outputs can be used as overvoltage and
undervoltage outputs, respectively.