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HXGT6B-12 environmental protection gas insulated metal enclosed ring network switchgear
Number of views:
1000

HXGT6B-12 environmental protection gas insulated metal enclosed ring network switchgear

The HXGT6B-12 type ring main unit is the latest high-performance, green and environmentally friendly 12kV intelligent ring main unit developed by Tianan Electric that combines vacuum arc extinguishing and (environmental) gas insulation technology.
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Number of views:
1000
Product serial number
B8
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Detail
Parameters
Features
Technical Parameter
Case

The HXGT6B-12 type ring main unit is the latest high-performance, green and environmentally friendly 12kV intelligent ring main unit developed by Tianan Electric that combines vacuum arc extinguishing and (environmental) gas insulation technology.
All high-voltage live components of the product are sealed in a stainless steel box (IP67) filled with lower pressure (0.02~0.04MPa gauge pressure, 20℃) pure nitrogen or compressed dry air, and environmentally friendly gas is used to replace the greenhouse effect SF6 gas does not change the user's operation and maintenance habits of the inflatable ring main unit, and is a perfect substitute for the SF6 ring main unit and solid insulated ring main unit, providing users with new green products.

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1)The rated current of the circuit breaker cabinet can reach 1250A, and the breaking 31.5kA can replace part of the KYN28A-12 central cabinet;
2)Equipped with three-station isolation switch grounding observation window;
3)The amount of solid insulation material is small, and the environmental protection is more prominent;
4)Safe and reliable use under zero gauge pressure conditions;
5)There are two schemes of upper isolation and lower isolation for users to choose; it can realize the direct closing of the cable-side grounding switch, which conforms to the "five prevention" operating procedures of the electric power department and conforms to the user's usage habits;
6)Using self-designed and mature circuit breaker/load switch operating mechanism and three-station isolation mechanism, it has strong versatility and reliability.

Serial number

Project

unit

Technical parameter

1

Rated current

A

630

1250

2

Rated frequency

Hz

50

3

Rated voltage

kV

12

4

Power frequency withstand voltage

kV

42/48

5

Lightning impulse voltage

kV

75/85

6

Rated breaking short-circuit current

kA

25

31.5

7

Rated short-time withstand current (effective value)/time

kA/s

20/4

25/4

8

Arc duration

s

0.5

9

Inflatable shell protection level

IP

67

10

Cabinet protection level

IP

4X

11

N2 gas rated pressure (gauge pressure at 20°C)

MPa

0.04

12

Minimum functional pressure of N2 gas (gauge pressure at 20°C)

MPa

0.02

13

N2 gas annual leakage rate

%/year

≤0.1

14

Dimensions

mm

400×860×1660

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