Current Transformers

Current transformers or (CT’s) are instruments that are used to transform the current from a high current into a lower current so that the power can then be used for measuring and controlling. The transformers consist of a core, a primary and a secondary winding.RS Components offer an extensive range of highly accurate CT’s in various transformer types, current ratings, CT ratio supply voltages and mounting types to suit every application. Supplied by industry-leading brands including Siemens, Murata Power Solutions LEM and of course RS PRO.

How does a current transformer work?

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.

Types of current transformer

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.

Where would I use a current transformer?

CT's are used in a wide range of industrial and commercial measurement applications. Some of the most common are:Generating stationsElectrical substationsCommercial electric power distributionElectrical panels


...
顯示內容 隱藏內容

篩選條件

正在檢視 1 - 20,共 36 項產品
Results per page
Description Price Current Ratio Bore Size Transformer Type Sensor Technology Supply Voltage Input Current Output Current Overall Height Minimum Temperature Overall Width Maximum Temperature Overall Depth Dimensions For Use With
RS庫存編號 881-7926
製造零件編號2CSG225815R1101 CT PRO XT 250
BrandABB
TWD886.00
單位
- 18mm - - - - - - -5°C - +50°C - 45 x 96 x 69 mm -
RS庫存編號 881-7935
製造零件編號CTPROXT300
BrandABB
TWD886.00
單位
- 18mm - - - - - - -5°C - +50°C - 45 x 96 x 69 mm -
RS庫存編號 881-8004
製造零件編號CTMAX800SELV
BrandABB
TWD1,379.00
單位
- 30mm - - - - - - -5°C - +50°C - 70 x 111 x 69 mm -
RS庫存編號 881-7932
製造零件編號2CSG225845R1101 CT PRO XT 40 SELV
BrandABB
TWD878.00
單位
- 18mm - - - - - - -5°C - +50°C - 45 x 96 x 69 mm -
RS庫存編號 881-7957
製造零件編號2CSG225885R1101 CT PRO XT 100 SELV
BrandABB
TWD1,021.00
單位
- 18mm - - - - - - -5°C - +50°C - 45 x 96 x 69 mm -
RS庫存編號 291-1227
製造零件編號01.000158.221
BrandABB
TWD2,841.00
單位
- 26mm - - - - - 82mm -10°C 80mm +60°C 38mm - -
RS庫存編號 881-7994
製造零件編號CTMAX400SELV
BrandABB
TWD1,379.00
單位
- 30mm - - - - - - -5°C - +50°C - 70 x 111 x 69 mm -
RS庫存編號 881-7963
製造零件編號CTPROXT250SELV
BrandABB
TWD1,021.00
單位
- 18mm - - - - - - -5°C - +50°C - 45 x 96 x 69 mm -
RS庫存編號 881-8001
製造零件編號2CSG226035R1101 CT MAX 600 SELV
BrandABB
TWD1,291.00
單位
- 30mm - - - - - - -5°C - +50°C - 70 x 111 x 69 mm -
RS庫存編號 833-2888
製造零件編號2CCA880117R0001 CMS-200CA
BrandABB
TWD3,961.00
單位
160:1 15mm - - 690 V ac, 1500 V dc 160A - 35.65mm -25°C 43mm +70°C 43mm - -
RS庫存編號 833-2881
製造零件編號2CCA880132R0001 CMS-200DR
BrandABB
TWD3,961.00
單位
160:1 15mm - - 690 V ac, 1500 V dc 160A - 43.2mm -25°C 50.1mm +70°C 50.1mm - -
RS庫存編號 881-7913
製造零件編號2CSG225765R1101 CT PRO XT 60
BrandABB
TWD732.00
單位
- 18mm - - - - - - -5°C - +50°C - 45 x 96 x 69 mm -
RS庫存編號 881-7944
製造零件編號2CSG225865R1101 CT PRO XT 60 SELV
BrandABB
TWD822.00
單位
- 18mm - - - - - - -5°C - +50°C - 45 x 96 x 69 mm -
RS庫存編號 881-7982
製造零件編號2CSG225995R1101 CT MAX 1000
BrandABB
TWD1,194.00
單位
- 30mm - - - - - - -5°C - +50°C - 70 x 111 x 69 mm -
RS庫存編號 881-7938
製造零件編號CTPROXT400
BrandABB
TWD1,061.00
單位
- 18mm - - - - - - -5°C - +50°C - 45 x 96 x 69 mm -
RS庫存編號 881-7916
製造零件編號2CSG225775R1101 CT PRO XT 80
BrandABB
TWD760.00
單位
- 18mm - - - - - - -5°C - +50°C - 45 x 96 x 69 mm -
RS庫存編號 881-8008
製造零件編號CTMAX1000SELV
BrandABB
TWD1,338.00
單位
- 30mm - - - - - - -5°C - +50°C - 70 x 111 x 69 mm -
RS庫存編號 881-7985
製造零件編號CTMAX600
BrandABB
TWD1,076.00
單位
- 30mm - - - - - - -5°C - +50°C - 70 x 111 x 69 mm -
RS庫存編號 881-7976
製造零件編號CTMAX500
BrandABB
TWD1,117.00
單位
- 30mm - - - - - - -5°C - +50°C - 70 x 111 x 69 mm -
RS庫存編號 881-7910
製造零件編號2CSG225785R1101 CT PRO XT 100
BrandABB
TWD852.00
單位
- 18mm - - - - - - -5°C - +50°C - 45 x 96 x 69 mm -