Specifications

Mechanical Indicators
94
OUTPUT
INPUT
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
A
A
1
A2
B
B
1
B2 L2L1
C D
E
F
Fig. 1 T-150 phase splitter
Outer dimensions of accessories
With phase angle scale
LI-11NSY 1P
Rated voltage
110V SLOW-FAST B 50Hz
SLOW30°-FAST30°
3
Model name Phase-wire system
Scale
Cover type
Frequency
The items in must be specified.
Number of
units
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
A
A
1
A2
B
B
1 C1
B2 L2L1
C D
E
Fig. 2 T-150 resistor
Connection diagrams
A
A
A 1
B 1
C 1
A 2
B 2
L 1
L 2
B
B
C
C
D
D
E
E
T-150
resistor
VT
VT
Generator side
1 2 3
Bus line
side
Bus line
side
Bus line
side
Bus line
side
A
A
A 1
B 1
A 2
B 2
L 1
L 2
B
B
C
C
D
D
E
E
F
F
T-150
shunt
VT
VT
Generator side
1 2 3
1 2 3
A
A
A 1
B 1
C 1
A 2
B 2
L 1
L 2
B
B
C
C
D
D
E
E
T-150
resistor
Generator side
1 2 3
1 2 3
A
A
A 1
B 1
A 2
B 2
L 1
L 2
B
B
C
C
D
D
E
E
F
F
T-150
phase splitter
Generator side
1 2 3
1 2 3
Fig. 1 3-phase system; combined with VT Fig. 2 1-phase system; combined with VT Fig. 3 3-phase system; 220V
Fig. 4 1-phase system; 220V
Remarks
(1) The synchroscope operates normally even if the light shown in the diagrams
is not used.
(2) Regarding light connection
• When combined with a VT, the same phase at the secondary side of the VT
must be grounded.
• If a VT is not used (direct case), connect the same phases shown in the
connection diagrams.
The light will not flash if not connected.
(3) Regarding light rating
• A value twice the circuit voltage is generated between the light connection
terminals (between L1 and L2). If a light of the same rating as the circuit
voltage is to be used, connect two lights in series.
G1
G2
L
Light L turns off when the phases are equal (same as
the light circuit of Mitsubishi Electric’s synchroscope).
G1
G1: bus line side generator
G2
G2: starting side generator
L1
L3 L2
3
2
1
f
G: generator side frequency
f
B: bus line side frequency
Lights L2 turns off when the phases are equal.
Lights L1 and L3 turn on with the same brightness.
When fG>fB, the lights turn on in clockwise order
(L1→L2→L3).
When fG<fB, the lights turn on in anti-clockwise order
(L1→L3→L2).
Example synchroscope light connection (for reference)
Fig. 1 Fig. 2
Ordering method