Block type CT

Product Parameters:

MODEL:Low Voltage Indoor LV Current Transformer

· Indoor epoxy resin current transformer and indoor plastic casing current transformer
· Single phase, two phase or three phase.
· Rated voltage: 0.66kV, 0.75kV
· Metering class for CT: 0.2S, 0.2, 0.3, 0.5, 0.5S, 0.6
· Standard: IEC, ANSI, GB
· Type name: BH-0.66, LMK1-0.66

 General
This indoor dry type current transformer is used in 0.66kV, 0.75kV. power system, for measuring and protection.
It has been used in cubicle switchgear or in bay-installed switching stations.
The current transformer is made from high temperature indoor epoxy resin, amorphous alloy core for metering and high quality CRGO core for protection, primary and secondary use pure electrolytic copper.

Standard
All UNISUN Electric instrument transformers are in conformity with IEC standards, and recommendations IEC 61869. Transformers in conformity with specific country standards can also be supplied. (IEEE C57.13, NBR6855).

Specification data she

TypeRated current ratiobusbarNumber of bars

Rated load

Accuracy grade

Number of turns
-30B30-75/5  50.2s、0.2、0.5turns
-30B100/5-150/530*10 50.2s、0.2、0.51
-3015/5  50.2s、0.2、0.510

20/5-40/5

  50.2s、0.2、0.5turns
50/5 150.2s、0.2、0.53
75/530*6150.2s、0.2、0.52
100/530*6150.2s、0.2、0.51

150/5-300/5

30*6

150.2s、0.2、0.51
-40

100/5-150/5

40*10

150.2s、0.2、0.51
200/5-250/540*10150.2s、0.2、0.51
300/540*10150.2s、0.2、0.51

400/5

40*10

150.2s、0.2、0.51
500/5-600/540*101-2100.2s、0.2、0.51
-50300/5-400/550*101-250.2s、0.2、0.51
-50

500/5-600/5

50*10

1-2100.2s、0.2、0.51
-60400/560*101-250.2s、0.2、0.51
500/560*101-250.2s、0.2、0.51

600/5-800/5

60*10

1-250.2s、0.2、0.51

1000/5

60*10

1-2150.2s、0.2、0.51

1200/5-1500/5

60*10

1-2200.2s、0.2、0.51

2000/5

60*10

1-2300.2s、0.2、0.51
-80

600/5-750/5

80*10

1-250.2s、0.2、0.51

800/5

80*10

1-250.2s、0.2、0.51

1000/5-1500/5

80*10

1-2150.2s、0.2、0.51

2000/5-2500/5

80*10

1-2200.2s、0.2、0.51
-100

800/5-1000/5

100*10

1-2100.2s、0.2、0.51
-100

1200/5-3000/5

100*10

 200.2s、0.2、0.51
  • Products can be customized by customer requirements, above data is standard data, customized data please contact us.
  • Products can be customized by customer requirements, above dimension may change, correct dimension please contact us.
 

Why Buy From Us

 

  • Certified to international quality standards; core components meet the standards.
  • Easy payment and affordable prices.
  • Easy to use and excellent service

Primary Winding:

A high-electrolytic copper primary winding is used, and a silver-base welding material is used at the welding place. Semiconductor shielded paper is wrapped around it to ensure that the partial discharge testing data is qualified.

Secondary Winding

The large-capacity secondary winding is automatically wound with high-insulation, high-purity enameled wire to ensure a wide capacity output under standard accuracy.

Compact design, saving space inside the cabine

Busbar-type / through-type models can be directly mounted on the busbars of the switchgear cabinet, eliminating the need for primary terminals and additional primary wiring

Available in ring or square epoxy resin encapsulation for minimal footprint

Safety Non-flammable, oil-free, and gas-free

Encapsulated in epoxy resin via vacuum casting or plastic molding, the product is flame-retardant, non-explosive, and poses no risk of oil leakage, meeting indoor power distribution safety requirements.

Virtually Maintenance-Free

Fully enclosed design, moisture- and dust-resistant; requires virtually no maintenance under normal indoor conditions; designed for a service life of over 20 years.

Lightweight and low-cost

 No oil tank, porcelain bushings, or single-layer conductors; low manufacturing and installation costs; suitable for large-scale deployment in low-voltage circuits

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