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The new CT PRO XT and CT MAX range of current transformers has been specially designed for easy and safe switchboard installation, testing and maintenance operations thanks to the compact size of the products and their flexible assembly system.
The classification of protection current transformers follows the following simple formula: "10 P 10" Manufacturers of protection devices will normally specify the classification for the protection current transformer intended to operate the particular protection device concerned.
27 Νοε 2020 · The more recent standard IEC 60044-6 is the only standard that specifies the performance of inductive CTs (classes TPX, TPY and TPZ) for currents containing exponentially decaying DC components of the defined time constant. This section summarises the various classes of CTs.
A C.T “Current Transformer” is a type of instrument transformer designed to step down the current in the secondary for protection and measurement of proportional primary current. These transformers with low range ampere meters are used to measure the current in the high voltage circuits.
Current transformer cabinets and terminal boxes (also known as junction box) are integral to many electrical distribution systems for their ability to provide an isolated enclosure, whether for metering purposes (CT cabinet) or acting as protection to important connections (junction box) in a wired loop.
28 Οκτ 2020 · The current transformer (CT) converts primary current into a secondary current of smaller or larger value through a certain transformation ratio. Most times, the current transformer reduces large current for protection, measurement, and other purposes.
This Specification defines the functional and performance requirements for current transformers (CTs) for protection and general use on The Transmission System in England and Wales. It supports the more general requirements defined in the companion documents TS 1 (RES), and TS 2.2 (RES).
