TAT Current Transformers

Detailed Product Description

1  Instruction for LMWSB Current Transformers

The current transformers are outdoor products of a busbar going thru type, with a metal protective case (stainless steel or aluminium). Between the case and the case cover, a silicon rubber bar is used for seal and isolation. At the ring direction of case and cover, there is a gap for magnetic isolation, and there is an earthing bolt on the case and cover correspondingly. It is much suit for going in and out bushing type current transformer of 66~220kV PASS switchgear.

2  Technical Parameters

2.1 Rated insulation level: 0.72 / 3kV.

2.2 The other technical parameters please see table 1.

Table 1   Technical Parameters Table

Rated Frequency (Hz)	Rated Primary Current (A)	Rated Secondary Current (A)	Accuracy Classes Combination	(Fs) Instrument Security Factor	Rated Output cosΦ=0.8 (VA)	Rated Voltage (kV)
50 60	100~4000	5 1	0.2S 0.2 0.5S 0.5 5P10 5P20 5P30 5P50 5P70 10P10 10P20 10P30 X PX PR TPS TPX TPY TPZ	≤5 ≤10 ≤15 ≤20 ≤25	5~60	0.66

Note: Those listed in the table above are the routine parameters, if there is any different parameter required, we can design according to the technical parameters of the clients.