Product overview:
The LTC bushing type current transformer is suitable for current,
energy measurement and microcomputer protection of power supply equipment in
10kV AC power system. The current transformer has the following
characteristics: small size, light weight, and easy installation, and has been
widely used in electrical equipment such as compact switchgear cabinets and
capacitors.
The ring core and secondary winding of this type of current
transformer are vacuum casted in a flame-retardant plastic casing with
high-quality epoxy resin, which is moisture-proof, stable in performance and
maintenance-free. This model has the advantages of small volume, light weight,
compact, and is fixed on the casing of the electrical equipment such as
switchgear cabinet and the capacitor, and is simple, harmonious and beautiful.
General specifications:
Specifications:
Rated
frequency: 50Hz or 60Hz;
Rated
secondary current: 5A or 1A;
Power
frequency withstand voltage: 3kV/1min;
Rated
expansion current: 120%ln;
Executive
standard: GB1208-2006;
WNCB001-2008 (enterprise standard).
P2 represents
the primary polarity end, and S1 and S2 represent the secondary polarity end;
P2 and S2 are the same name end (reduced polarity).
|
Conditions:
Temperature: -35°C~+55°C;
Daily average
humidity: ≤40%;
Altitude: ≤3000m;
Atmosphere: without
heavy pollution.
|
According to different current ratio, accuracy level and rated
load, the series of current transformers are divided into the following types.
For details, please refer to the parameter table corresponding to each model.
Current ratio, rated power and Specification size:
model
|
Current
ratio1V/5V
|
rated
power in VA
|
Specification
size (mm)
|
LTC1-10
|
50~600A
|
≤10VA
|
φ116×φ78×35
|
LTC2-10
|
50~600A
|
≤15VA
|
φ130×φ82×40
|
LTCJ1-10
|
50~600A
|
≤20VA
|
φ116×φ78×70
|
LTCJ2-10
|
20~600A
|
≤25VA
|
φ130×φ82×80
|
LTC3-10
|
75~600A
|
≤10VA
|
φ125×φ85×50
|
LTC4-10
|
50~600A
|
≤20VA
|
φ155×φ76×80
|
LTC5-10
|
50~600A
|
≤20VA
|
φ135×φ85×50
|
LTC6-10
|
100~600A
|
≤10VA
|
φ125×φ82×35
|
LTC7-10
|
50~600A
|
≤20VA
|
φ116×φ72×70
|
LTC8-10
|
100~600A
|
≤10VA
|
φ特定×72φ×75
|
LTC9-10
|
50~600A
|
≤15VA
|
φ165×φ100×35
|
LTCS-10
|
100~600A
|
≤10VA
|
φ105×φ75×35
|
LZW20-10
|
100~600A
|
≤10VA
|
φ166×φ85×40
|
LZW28-10
|
100~600A
|
≤10VA
|
φ155×φ110×80
|
LSZC-10
|
50~1200A
|
≤20VA
|
φ特定×φ45×100
|
LSTC-10
|
250~1200A
|
≤20VA
|
φ特定×φ75×54
|
Dimensions drawing:
LDC
Series dimensions:
model
|
Φ1
|
Φ2
|
D
|
H
|
h
|
LTC1-10
|
116
|
78
|
35
|
130
|
70
|
LTC2-10
|
130
|
82
|
40
|
145
|
80
|
LTCJ1-10
|
116
|
78
|
70
|
130
|
70
|
LTCJ2-10
|
130
|
82
|
80
|
145
|
80
|
LTC3-10
|
125
|
85
|
50
|
134
|
/
|
LTC4-10
|
155
|
76
|
80
|
170
|
90
|
LTC5-10
|
135
|
85
|
50
|
155
|
/
|
LTC6-10
|
125
|
82
|
35
|
150
|
86
|
LTC7-10
|
116
|
72
|
70
|
128
|
70
|
LTC8-10
|
/
|
72
|
75
|
130
|
70
|
LTC9-10
|
165
|
100
|
35
|
195
|
112.5
|
LTCS-10
|
105
|
75
|
35
|
115
|
62.5
|
LZW20-10
|
166
|
85
|
40
|
170
|
90
|
LZW28-10
|
155
|
110
|
80
|
170
|
90
|
LSZC-10
|
/
|
45
|
100
|
/
|
/
|
LSTC-10
|
/
|
75
|
54
|
130
|
/
|
Rated
primary current,Accuracy class
and rated load:
model
|
LTC2-10
|
Current ratio
I1/I2
|
Accuracy class and rated load(VA)
|
0.2S
|
0.2
|
0.5
|
1
|
10P15
|
10P10
|
10P5
|
50/1
|
|
|
1
|
1.5
|
|
|
1.5
|
75/1
|
|
|
2
|
2.5
|
|
|
2
|
100/1
|
|
|
2.5
|
3.5
|
|
1.25
|
2.5
|
200/1
|
|
|
3
|
5
|
1.5
|
2.5
|
5
|
300/1
|
|
2.5
|
3.5
|
|
2.5
|
5
|
10
|
400/1
|
2.5
|
3.75
|
5
|
|
2.5
|
5
|
10
|
500/1
|
3.75
|
5
|
7.5
|
|
3.75
|
5
|
10
|
600/1
|
5
|
7.5
|
10
|
|
5
|
7.5
|
15
|
75/5
|
|
|
1.5
|
|
|
|
1
|
100/5
|
|
|
2.5
|
5
|
|
|
2.5
|
150/5
|
|
|
3.75
|
5
|
|
|
2.5
|
200/5
|
|
|
5
|
7.5
|
|
2.5
|
5
|
300/5
|
|
3.75
|
7.5
|
|
2.5
|
5
|
5
|
400/5
|
2.5
|
5
|
10
|
|
3.5
|
5
|
10
|
500/5
|
5
|
7.5
|
10
|
|
4
|
6.25
|
12.5
|
600/5
|
5
|
10
|
12.5
|
|
5
|
7.5
|
15
|
rated secondary current is 5A or 1A.