Share:
PRODUCTS
BH-0.72Ⅰ

CATALOGUE

Low Voltage Measuring Current Transformers BH-0.72

This model belongs to the indoor molded low voltage measuring current transformer. It is widely used in indoors and weather: the highest ambient temperature + 55 ° C, the annual average ambient temperature of 32 ° C, the maximum relative humidity of 99%, Highest altitude - From MSL to 2000 M above MSL, can be installed in the anti-pollution area, no Salt air and explosive gases.

DESCRIPTION

Main Technical Data Sheet

No

Item

CT

1.

Type

 Indoor

2.

Nominal Voltage

400 V

3.

Rated Voltage

416V

4.

Insulation Voltage

600 V

5

Frequency

50 Hz

6

Power Frequency Withstand Voltage

3kV rms

7

Impulse withstand Voltage

6kV peak

8

Accuracy Class

0.5

9

Rated burden

5 VA (for ≥ 100/5 A Ratings)

& 2.5 VA(upto 50/5 A Ratings)

10

Limits of current error and phase displacement

IEC 61869-2

11

Instrument Security Factor

< 5

12

Primary current

50A ,100A, 200A, 300A, 400A

13

Secondary current

5A

14

Short-time withstand current/Duration

25kA/1 Sec.

15

Type of Insulation    

encased

16

Class of Insulation

A

17

Temperature rise (max.)

60K

18

Sealable Terminal box

to be provided

19

Foot Stand

to be provided

Note: Upon request, we are happy to provide current transformers according to other technical specifications.



Other Features:

a). The ring type low voltage measuring current transformer shall be of the   encased type (in which the current transformer core and winding are mechanically and electrically protected within an insulation, robust andstrong plastic case) suitable for operation in tropical climatic conditions and the dielectric strength shall not be less than that stipulated in the Technical Requirements. All CT  be of Single Turn.

b). The internal diameter of the current transformers  not  less than the valuestipulated below:

Current Transformer Rating (Amp)

Internal diameter of the CT (min.) to accommodate the PVC insulated Al Cable of sizes (sqmm)

50/5 A

50

100/5 A

85

200/5 A

120

300/5 A

185

400/5 A

240

c). Terminals shall be suitable for 2.5 sqmm cables. Double secondery terminals shall be provided for short circuiting the secondary winding before opening the measuring circuit.

d).The secondary terminals of the current transformer are mounted in a junction box with a seal and are designed with lead screws to prevent contact with unauthorized personnel.

Outline drawing


Contact Us

Email: international2@chuangy.com

Address: 1F block B,Jiada R&D Bldg, High-tech Park,Nanshan,Shenzhen,China

Post code :518057

Tel. 0086-755-86000713


Copyright © 2019. Shenzhen Chuangyin   Co., Ltd. All rights reserved. 粤ICP备11018302-1号