LZZBJ9-20 Type Current Transformer/CT

Source:

CT photo.jpg


I General description

The type current transformer is epoxy resin casted with totally-enclosed post structure. It is suitable for the indoor AC power system with rated frequency 50Hz, rated voltage 20kV and below, used for current, power measurement and reply protection.

 

II Technical specification

1. Rated insulation level: 24/65/125kV

2. Power factor of load: COSΦ=0.8 (lagging)

3. Rated secondary current: 5A or 1A

4. Surface creepage distance: pollution II class

5. Standard: GB1208-2006 Current Transformer

6. Meter protection coefficient: FS10

7. Other technical parameters refer to below table

Rated primary current (A)

Accuracy class combination

Rated output (VA)

Short-time thermal current (KA effective value)

Dynamic stable current (kA value)

20-200

0.2S/10P10

0.5/10P10

0.2S/0.5/10P10

15/20

20/20

15/15/20

150I1n

375I1n

300

45

112.5

400

500

600

0.2S/10P10

0.5/10P10

0.2S/0.5/10P10

20/30

20/30

20/20/20

63

130

800

1000

80

160

1200

1500

100

160

2000

2500

3000

3150

For special needs please contact with us.

 

III Overall drawing 

CT drawing.jpg


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