IT and field bus components

The link between power currents and digital technology

Obviously currents of several hundreds to thousands of Ampere cannot be directly digitally measured. Current transformers convert almost any amount of primary current into “bite-sized” secondary currents. The secondary output is .../1 or .../5A.

Janitza electronics® GmbH has a wide range of various current transformers whether these are moul- ded case type current transformer, summation current transformer or cable split core type transfor- mer. It is recommended to select the accuracy classification of the current transformer to match the accuracy classification of the connected measuring instruments.

Areas of application

Conversion of high primary currents into standardized secondary currents .../1A or .../5A
Transformer classes 0.5 or 1 depending on the instrument
Transformers are available for various bus bars and cables
Moulded case type transformers for cable or bus bars
Cable split core type transformers for cables when the electricity path cannot be opened
Summation current transformers

Moulded case current transformers Current transformers are used when currents cannot be directly measured. They are a special form of transformers.

Summation current transformers (CTs) Summation current transformers have the task of adding up the secondary currents from various main, CTs and, therefore, making the measurement of an instrument accessible.

Cable split core CTs The cable split core CTs of the types KUW1, 2 and 4, due to their very compact design and easy mounting, are well suitable for in limited space or places difficult to reach.

Split core current transformers Split core current transformer

DIN-rail current transformer While measuring in substations, there are often problems regarding the space, as vol- tage and current are necessary for each phase. Those problems can be solved by using the DIN-rail CTs....

Differential current transformer The opening and closing of the current transformers allows for quick and cost-effec- tive installation of the compact KBU series current transformers. The simple push- button locking system eliminates the separation and disconnection...

Voltage transformer accessories These voltage transformers are used in the following applications: in IT grids without neutral conductor, in applications in which the grid voltage is too high for the measuring inputs...