3 Phase Current Transformers

3 Phase Current Transformers
Product Details

General description:

LSY three-phase-integrated current transformer is fit for be installed at the three-phase bushings of the ring switchgears and the switches on the wire poles. It is used to the measurement and protection of the three-phase current and the zero-sequence current for the three-phase bushings and the zero sequence current for then loops of the several cables.

The core and secondary windings are vacuum poured by high quality epoxies resin in the fire retardant plastic casing, which has the characteristic of moisture proof, stable performance and dispensing with maintenance.

Type designation:

Type code:

Product code:

Technical data:

Rated frequency:                  50Hz or 60Hz

Rated secondary current:           5A or 1A

Rated short-time thermal current:    40kA,1s

Rated continuous thermal current:   120%In

Power-frequency withstand voltage:   3KV , 1min

Instrument security factors:         FS≤10

Application conditions:

Ambient temperature:              -25 ℃-+40℃

Average day temperature:          ≤40℃

Altitude:                          ≤3000m

Pollution level:                    III

Product overview:


Type code

Product code

Dimensions (mm)

Primary current(A)

Weight (kg)

LSY-10

LSY105078080

105×80×φ78

20-600

5.1

LSY107075065

107×65×φ75

20-600

4.5

LSY110076070

110×70×φ76

20-600

5.0

LSY110085040

110×40×φ85

20-600

3.1

LSY110085110

110×110×φ85

20-600

8.6

LSY110090070

110×70×φ90

20-600

5.2

LSY120083080

120×80×φ83

20-600

4.3

LSY135078080

135×80×φ78

20-600

11.2

LSY135083057

135×57×φ83

20-600

6.8

LSY135110067

135×67×φ110

20-600

7.2

LSY135110085

135×85×φ110

20-600

9

LSY140090070

140×70×φ90

20-600

10.9

LSY150078080

150×80×φ78

20-600

12.6

LSY205280075

205×75×φ80

20-600

11.8

LSY210100066

210×66×φ100

20-600

12.4


All kinds of current transformers of different specifications and parameters can be made according to the client’s demands.

Wiring diagrams:

       

Download the specifications of all types of Zero Sequence Current Transformers


Zero Sequence CT Download.pdf


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