Specifications

Mechanical Indicators
74
Fig.1 T-150 rectifier (for wattmeter) Fig. 2 T-150LB DC amplifier
Outer dimensions of accessories
Fig. 1 LB-11ZNW and LB-11YNW (1-phase, 2-wire system) Fig. 2 LB-11ZRNW and LB-11YRNW (1-phase, 2-wire system)
Fig. 3 LB-11ZNW and LB-11YNW (3-phase, 3-wire system) Fig. 4 LB-11ZRNW and LB-11YRNW (3-phase, 3-wire system)
Wattmeter connection diagrams
Fig. 5 LB-11ZNW and LB-11YNW (3-phase, 4-wire system) Fig. 6 LB-11ZRNW and LB-11YRNW (3-phase, 4-wire system)
Input
Output
Input
Demand
Source
Load
Demand
Reset
Switch Note 1
Auxiliary
power supply
Auxiliary
power supply
Power supply for
electromagnetic
marker needle
reset
M A
M B
T-150LB
DC amplifier
1mA DC
T-101IS
isolator
Shunt
DC current telemetry measurement example
Input
Output
Demand
Meter
Source
Load
(Note 2)
D
e
m
a
n
d
Reset
Switch Note 1
Auxiliary
power
supply
Auxiliary
power supply
Power supply for
electromagnetic
marker needle
reset
Meter
M A
M B
T-150LB
DC amplifier
1mA DC
T-51HAA
transducer
±
A
AC current telemetry measurement example
Input
Input
DemandMeter
Source
CT
CT
VT
Load
(Note 2)
D
e
m
a
n
d
Reset
Switch Note 1
Auxiliary
power
supply
Auxiliary
power supply
Power supply for
electromagnetic
marker needle
reset
Meter
C1 C3 M A M B
P1 P2 P3
+C 1 +C 3
T-150LB
DC amplifier
1mA DC
T-101HW
transducer
3
2
1
AC active power telemetry measurement example
Connection examples of receiving indicators
OUTPUT
INPUT
Nameplate
P 1 P 2 P 3 C 3 +C 3
+ C 1
C 1
130
115
100
70
R3
R3
100
6
6
M4 terminal screw
12 12
6
6
12 12
1.2
89
113
16
150
11.5
12.5
12.5
11.5
100
DEMAND
Nameplate
130
115
100
70
R3
R3
100
6
6
M4 terminal screw
12 12
6
6
12 12
1.2
89
113
16
150
11.5
12.5
12.5
11.5
100
C
A
METER
SOURCE
INPUT
SPAN ADJ
+C
C
+P
P
Input
Demand
Demand
Source
Reset
Auxiliary
power supply
Power supply for electromagnetic
marker needle reset
T-150LB
DC amplifier
T-150 rectifier
(for 1-phase, 2-wire
system wattmeter)
CT
VT
Load
Note 2
Switch
Note 1
+C
C
+P
P
Input
Demand
Meter
D
e
m
a
n
d
Source
Reset
Auxiliary
power supply
Power supply for electromagnetic
marker needle reset
T-150LB
DC amplifier
T-150 rectifier
(for 1-phase, 2-wire
system wattmeter)
M
e
te
r
CT
VT
Load
Note 2
Switch
Note 1
Input
Demand
Demand
Source
Reset
Auxiliary
power supply
Power supply for electromagnetic
marker needle reset
T-150LB
DC amplifier
T-150 rectifier
(for 3-phase, 2-wire
system wattmeter)
CT
VT
Load
Note 2
1 2 3
C1
C3
P1
P2
P3
+C 1
+C 3
Switch
Note 1
Input
Demand
Meter
D
e
m
a
n
d
Source
Reset
Auxiliary
power supply
Power supply for electromagnetic
marker needle reset
T-150LB
DC amplifier
T-150 rectifier
(for 3-phase, 3-wire
system wattmeter)
Switch
Note 1
M
e
te
r
C1
C3
P1
P2
P3
+C 1
+C 3
CT
VT
Load
Note 2
1 2 3
Input
Demand
Demand
Source
Reset
Auxiliary
power supply
Power supply for electromagnetic
marker needle reset
T-150LB
DC amplifier
T-150 rectifier
(for 3-phase, 4-wire
system wattmeter)
C1
C3
P1
P0
P3
+C 1
+C 3
C2
+C 2
CT
VT
Load
Note 2
0 1 2 3
Switch
Note 1
Input
Demand
Meter
D
e
m
a
n
d
Source
Auxiliary
power supply
Power supply for electromagnetic
marker needle reset
T-150LB
DC amplifier
T-150 rectifier
(for 3-phase, 4-wire
system wattmeter)
CT
VT
Load
Note 2
Meter
0 1 2 3
C1
C3
P1
P0
P3
+C 1
+C 3
C2
+C 2
Reset
Switch
Note 1
Note.
3-phase, 3-wire system shown in this figure. The number and layout of
terminals differ according to the phase-wire system.
Note.
LB-11ZNW and YNW and the LB-11ZNRI and YNRI types do not have a
METER terminal.
Note 1.
Note 2.
Connect if an electromagnetic marker needle reset circuit is to be provided. Additionally, use a switch that “opens” when released.
For low-voltage circuits, grounding of the secondary sides of the instrument voltage transformer and current transformer is unnecessary.
Note 1.
Note 2.
Connect when an electromagnetic reset circuit is installed. Additionally, use a switch that opens when disconnected.
For low-voltage circuits, secondary-side connections of current transformers/meter transformers are not required.