Toroidal Current Transformers TORO TW C

Features / Applications:

• Current transformers are used for electrical measuring instruments and / or electrical protective devices.
• They are very useful in high power circuits where the current is large.
• Current transformers are subdivided into two main categories:

MEASURING CURRENT TRANSFORMERS
These transformers are used in measuring and indicating current, that is to reduce the line current to a value which is suitable for standard measuring instruments, relays etc.

PROTECTIVE CURRENT TRANSFORMERS
These transformers are used for over current and undercurrent relaying for power circuit protection

• TYPE : Current Transformers are normally categorized as Ring / Bar type and Wound Primary Ring / Bar type current transformer : A current transformer where primary winding is provided by 'the user.

Wound primary current transformer : A current transformer having a primary winding of more than one full turn wound on core.

• Current Transformers are wound on Toroidal cores which virtually eliminates error due to leakage flux. Adjusting the number of secondary turns may compensate for some errors.