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Home > Products > Ring Main Unit (RMU) > 33kV 36kV gas insulated RMU Safe GIS switchgear Ring Main Unit

33kV 36kV gas insulated RMU Safe GIS switchgear Ring Main Unit

Basic Info

Model No.:  XGN65-40.5

Product Description

Model NO.: XGN65-40.5

Structure: Fixed Board

Form: All- packaged Type

Size: 3 Uint

Shell Material: Stainless Steel


Standards: IEC, ANSI, GB

Voltage rating: 33kV

Trademark: Tianan Electric

Specification: C-GIS

HS Code: 8537209000

Type: Distribution Metering Box

Certification: ISO9001:2000, VDE, CCC, TUV

Operation Voltage: High Voltage

Application Range: High-rise Buildings

Shell Protection Grade: IP56

Application: Indoor

Installation: Free-standing

Current rating: 630A

Transport Package: Nude

Origin: Ningbo, China

Service condition

A. Altitude ≤1000m (above sea level);

B. Ambient temperature: -25ºC~+40ºC;

C. Wind speed ≤34m/s

D. The spot should have no regularly exquisite shake.


ØOn our nation 40.5Kv transmission line, there is still massive adoption of various fuses. For the terminal station especially,because of its low rated current and rated short-circuit current,like "waste one's talent on a petty job" , far from economy.

ØOverseas, Load Switch or load switch and fuse composed electric apparatus are widely adopted for its economy, convenience ,safety, and dependability. While for our country, so far, no SF6 load switch is available on 40.5kV voltage degree. The only choice is using 36kV air load switch from other country, but its insulation level doesn't meet our nation standard,it still unsuited for the running on our nation grid.

ØFor the above reasons,we developed XGN65-40.5 Indoor HV SF6 Ring Main Unit.

Technical data

S/N Item Unit Parameter
1 Rated voltage: kV 36, 38, 40.5
2 Rated frequency: Hz 50/60
3 1 min power frequency withstand voltage
phase-phase,phase -earth/isolating distance :
kV 70/80, 70/80, 95/110
4 Lighting impulsive withstand voltage
phase-phase,phase-earth/isolating distance:

170/195, 170/195, 185/215
5 Rated current: A 630, 1250
6 Rated current of fuse: A 3.15-50
7 Rated short-time withstand current of main circuit, earth circuit : kA 20
8 Rated short-time withstand current of main circuit, earth circuit : kA 20
9 Rated short-circuit making current: kA 50
10 Load switch full capacity breaking times: times 100
11 Rated short-circuit breaking current of fuse : kA 31.5
12 Rated transfer current: A 1000
13 Rated SF6 gas pressure (ambient tempeture20ºC): Mpa 0.04
14 SF6 gas min. pressure (gauge pressure at 20ºC) Mpa 0.02
15 Gas annual leakage rate
16 Mechanical lifetime : times 5000
17 Protection degree of gas filled tank IP 67
18 Protection dgree of mechanism compartment,
instrument compartment and cable compartmnet
19 Circuit resistance

20 LBS cubicle 130
21 LBS+fuse cubicle 250
22 Circuit Breaker cubicle 140

Contact us if you need more details on Ring Main Unit. We are ready to answer your questions on packaging, logistics, certification or any other aspects about RMU、Safe. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Ring Main Unit (RMU)

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