Current Transformers

Current transformers (CT) are devices that are used to transform the current from a high current into a lower current so that the power can then be measured and controlled. The transformers consist of a core, a primary and a secondary winding. When an alternating current flows through the primary winding, a magnetic flux is created which then induces an alternating current in the secondary winding. This alternating current is proportional to the current in its primary. Current transformers are also known as a "step-down transformers". Once the current has been reduced it can be safely monitored and measured using an ammeter.


Current transformers can perform circuit control and perform roles for safety protection and current limiting.


Current transformers are found in:


  • Generating stations,

  • Electrical substations

  • Commercial electric power distribution.

Types of Current Transformers


Toroidal Current Transformer - These transformers are shaped like a doughnut they do not contain a primary winding. Instead, the line that carries the current flowing in the network is threaded through a window or hole in the toroidal transformer. Toroidal transformers offer high efficiency with minimal excess noise and little excess leakage inductance.


Wound Current Transformer - The transformers primary winding is physically connected in series with the conductor that carries the measured current flowing in the circuit. The magnitude of the secondary current is dependent on the turns ratio of the transformer.


Bar-type Current Transformer – This type of current transformer uses the actual cable or bus-bar of the main circuit as the primary winding, which is equivalent to a single turn. They are fully insulated from the high operating voltage of the system and are usually bolted to the current carrying device.


...
Read more Read less

검색 필터링

총 734개 제품 중 1번째-20번째 제품을 조회 중
한장내 검색 결과 수
제품설명 단가 Current Ratio Inner Diameter Transformer Type Overall Height Overall Width Overall Depth Input Current Output Current Minimum Temperature Maximum Temperature Dimensions For Use With Mounting Type Series
RS 제품 번호 331-339
제조사 부품 번호CT132M100/5-2.5/1
제조사HOBUT
₩23,012.85
Each
수량
100:5 21mm DIN Rail Mounted 65mm 45mm 30mm - - -30°C +85°C - - - -
RS 제품 번호 668-4067
제조사 부품 번호CT105F250/5-2.5/1
제조사HOBUT
₩59,019.35
Each
수량
250:5 21mm Base Mounted 79mm 105mm 53mm - - -30°C +80°C - - - -
RS 제품 번호 913-9734
제조사 부품 번호METSECT5CC013
₩50,553.25
Each
수량
125:5 21mm Tropicalise - - - - - -25°C +60°C 65 x 44 x 30 mm - DIN Rail -
RS 제품 번호 537-4485
제조사 부품 번호AC-1005
제조사Nuvotem Talema
₩3,485.95
Each (In a Pack of 5)
수량
- - - - - - 5A - -40°C +120°C 23.8 x 23.8 x 11.12 mm - PCB Mount -
RS 제품 번호 533-0621
제조사 부품 번호CTSCEN200<1000/5
제조사HOBUT
₩109,245.55
Each
수량
200:5, 400:5, 600:5, 800:5, 1000:5 - Clip Fit 125mm 132mm 38mm - - -30°C +80°C - - - -
RS 제품 번호 775-4934
제조사 부품 번호ACX-1050
제조사Nuvotem Talema
₩3,172.85
Each
수량
- - - - - - 50A - -40°C +85°C 23.8 x 23.8 x 11.12 mm - - -
RS 제품 번호 173-0064
제조사 부품 번호ACX-1050
제조사Nuvotem Talema
₩4,645.35
Each (In a Box of 240)
수량
- - - - - - 50A - -40°C +85°C 23.8 x 23.8 x 11.12 mm - - -
RS 제품 번호 819-9779
제조사 부품 번호Mini CT Sensor
제조사Efergy
₩15,624.00
Each
수량
- 12mm Split Core - - - - - - - - Data Loggers/DAS, Digital or Analog Meters, DMMs, Recorders - -
RS 제품 번호 331-519
제조사 부품 번호CT143M100/5-2.5/1-001
제조사HOBUT
₩19,977.95
Each
수량
100:5 24mm DIN Rail Mounted 70mm 49mm 45mm - - -30°C +85°C - - - -
RS 제품 번호 668-4055
제조사 부품 번호CT105F150/5-2.5/1
제조사HOBUT
₩51,081.80
Each
수량
150:5 21mm Base Mounted 79mm 105mm 53mm - - -30°C +80°C - - - -
RS 제품 번호 668-4064
제조사 부품 번호CT105F200/5-2.5/1
제조사HOBUT
₩59,129.40
Each
수량
200:5 21mm Base Mounted 79mm 105mm 53mm - - -30°C +80°C - - - -
RS 제품 번호 173-0070
제조사 부품 번호AX-0500
제조사Nuvotem Talema
₩5,048.35
Each (In a Box of 250)
수량
- - - - - - 5A - -40°C +120°C 12.7 x 17 x 9.53 mm - Through Hole -
RS 제품 번호 331-581
제조사 부품 번호CTSCM40300/5-2.5/1
제조사HOBUT
₩46,799.15
Each
수량
300:5 - Clip Fit 116mm 104.5mm 35.5mm - - -30°C +80°C - - - -
RS 제품 번호 173-0058
제조사 부품 번호AP-1500
제조사Nuvotem Talema
₩4,157.10
Each (In a Box of 250)
수량
- - - - - - 10A - -40°C +85°C 17.2 x 9.53 x 20.4 mm - - -
RS 제품 번호 331-604
제조사 부품 번호CTSCM40400/5-5/1
제조사HOBUT
₩59,791.25
Each
수량
400:5 - Clip Fit 116mm 104.5mm 35.5mm - - -30°C +80°C - - - -
RS 제품 번호 914-5301
제조사 부품 번호CTSCMWH500/0.333V
제조사HOBUT
₩42,656.00
Each
수량
- 35mm Split Core - - - 500A 333 mV -15°C +50°C 51.2 x 51.2 x 83.5 mm Multi Function Meter Cable -
RS 제품 번호 418-3604
제조사 부품 번호CTSCEN100<400/5
제조사HOBUT
₩107,025.95
Each
수량
100:5, 200:5, 300:5, 400:5 - Clip Fit 113mm 127mm 40mm - - -30°C +80°C - - - -
RS 제품 번호 775-4947
제조사 부품 번호AP-1500
제조사Nuvotem Talema
₩5,480.80
Each
수량
- - - - - - 10A - -40°C +85°C 17.2 x 9.53 x 20.4 mm - - -
RS 제품 번호 775-4915
제조사 부품 번호AX-0500
제조사Nuvotem Talema
₩2,825.65
Each
수량
- - - - - - 5A - -40°C +120°C 12.7 x 17 x 9.53 mm - Through Hole -
RS 제품 번호 331-575
제조사 부품 번호CTSCM40500/5-5/1
제조사HOBUT
₩59,368.10
Each
수량
500:5 - Clip Fit 116mm 104.5mm 35.5mm - - -30°C +80°C - - - -