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:
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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).
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Conditions:
Temperature: -35°C~+55°C;
Daily average humidity: ≤40%;
Altitude: ≤3000m;
Atmosphere: without heavy pollution.
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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：
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model
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Current ratio1V/5V
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额定负载范围
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规格尺寸(mm)
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LTC1-10
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50～600A
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≤10VA
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φ116×φ78×35
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LTC2-10
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50～600A
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≤15VA
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φ130×φ82×40
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LTCJ1-10
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50～600A
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≤20VA
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φ116×φ78×70
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LTCJ2-10
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20～600A
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≤25VA
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φ130×φ82×80
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LTC3-10
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75～600A
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≤10VA
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φ125×φ85×50
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LTC4-10
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50～600A
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≤20VA
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φ155×φ76×80
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LTC5-10
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50～600A
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≤20VA
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φ135×φ85×50
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LTC6-10
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100～600A
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≤10VA
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φ125×φ82×35
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LTC7-10
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50～600A
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≤20VA
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φ116×φ72×70
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LTC8-10
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100～600A
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≤10VA
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φspecific×72φ×75
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LTC9-10
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50～600A
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≤15VA
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φ165×φ100×35
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LTCS-10
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100～600A
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≤10VA
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φ105×φ75×35
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LZW20-10
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100～600A
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≤10VA
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φ166×φ85×40
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LZW28-10
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100～600A
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≤10VA
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φ155×φ110×80
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LSZC-10
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50～1200A
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≤20VA
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φspecific×φ45×100
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LSTC-10
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250～1200A
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≤20VA
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φspecific×φ75×54
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Rated primary current，Accuracy class and rated load：
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model
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LDCJ2-10
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Current ratio
I1/I2
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Accuracy class and rated load（VA）
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Accuracy class and rated load（VA）
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0.2S
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0.2
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0.5
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10P15
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10P10
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10P5
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0.5
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1
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10P10
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10P5
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20/1
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1
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30/1
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1.25
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40/1
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2
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1
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1.5
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1
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50/1
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2.5
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1
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2.5
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1.5
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2
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1
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2
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75/1
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3.75
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1.25
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1.25
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2.5
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2
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2.5
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1.5
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3
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100/1
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3.75
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3
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2.5
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5
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2.5
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3
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2
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3.5
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150/1
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2.5
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5
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3.75
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2.5
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5
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3
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2.5
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200/1
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2.5
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3.75
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5
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4
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6.5
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3.5
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3.5
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300/1
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3.75
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5
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7.5
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5
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7.5
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5
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3.5
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400/1
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5
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10
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15
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6
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15
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5
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5
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500/1
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7.5
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15
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30
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7.5
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20
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7.5
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7.5
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600/1
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10
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20
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40
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10
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15
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10
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10
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50/5
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2.5
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3.75
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3.5
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2
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75/5
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3.75
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2.5
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5
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2.5
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5
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1.5
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3
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100/5
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2.5
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5
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3.75
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7.5
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3.75
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5
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2
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3.75
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150/5
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2.5
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3.75
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7.5
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2.5
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5
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10
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5
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2.5
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5
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200/5
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3.75
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5
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10
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3.75
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7.5
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5
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3.75
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7.5
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300/5
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5
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7.5
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12.5
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5
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10
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7.5
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5
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10
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400/5
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7.5
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10
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15
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7.5
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12.5
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7.5
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5
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500/5
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10
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12.5
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20
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10
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15
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|
10
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7.5
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600/5
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12.5
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15
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25
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12.5
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20
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|
10
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10
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