Product Overview

When measuring the high current of alternating current, SEN-BHP series current transformers need to be converted to a relatively uniform current for the convenience of secondary instrument measurement (the secondary rating of current transformers is set as 5A or 1A in China). Current transformer in the process of short circuit transition can correct the primary current, the relay protection of right action plays a decisive role, protective current transformer (TA) mainly cooperate with relay protection devices, such as short circuit occurred in line failure, provide signals to cut off the fault circuit to relay device,protect the safety of the power system.Name of protective current transformer: low voltage protective current transformer Primary measuring range 200-6300A, secondary output 5A, 1A, main accuracy levels: 5P10, 10P10, 10P20, 5P20,etc. Collect low voltage overload and short circuit signals, and use with motor protection unit.

Technical Indicators

▪ Protection CT primary current 200-6300A, secondary current 5A, 1A, 0.1A, 0.05A.
▪ Rated working voltage AC0.66kVlequivalent AC0.69kV,GB/T156-2007).
▪ Rated frequency 50/60Hz.
▪ Ambient temperature -30℃~70C, maximum temperature resistance 120℃.
▪ Alfitude≤3000m.
▪ Power frequency voltage 3000V/1min 50Hz.
▪ Used in places without direct invasion of rain and snow,withou serious pollution and severe vibration.

Functional Features

This series of transformer is used to collect low voltage overload and short circuit signals, and is matched with protective relays and motor protectors.