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Model Number: DFT-24
Brand Name: Tianan Electric
Place of Origin: China (Mainland)
Voltage rating: Medium voltage
Application: Outdoor, Offshore
Installation: Free standing
Enclosure material: Stainless steel
Certificate: TUV, ISO, CCC, etc
Stanards: IEC, GB, ANSI, etc

Specifications

Specifications

General 
The outdoor ring main unit is the transfer station that the cable conveyed the electric energy, and is used in outdoor with the cable circuit to connect and breakout, branch and continues or changes. It features simple connection method, convenience, flexible, full insulation and omniseal structure, waterproof, corrosion resistance, antipollution, maintenance free and safety.
DFT6-12/24 series outdoor ring main unit is the new power supply equipment that we design for coordinating 10kV/24kV power network cable system. It is suitable at the cable node place in 10 kV/24kV system, and what it is as the electric energy accepts and distributing. This series outdoor ring main unit has unique structure and beautiful appearance, it especially is suitable widely at the place that small build-up area and higher requirement in environment such as city street, residence area, high-rise, airport and wharf, etc.
 
 
 
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.
 
Main technical data
Main parameter of FN26-12/24 FS6 load switch 

Item Unit Parameter Parameter
Rated voltage kV 12 24
Rated current A 630 630
Rated short time withstand current kA/s 25/2 25/2
Rated peak withstand current kA 63 63
Rated short circuit making current kA/times 50/2 63/2
1 min power frequency withstand voltage kV 42 65
Lightning impulse withstand voltage kV 75 125
Mechanical life Times 10000 10000
SF6 gas pressure(surface pressure in 20oC) Mpa 0.04 0.04
Yearly gas leakage rate   1% 1%

Main technical parameter of cable connector

Item Unit Parameter Parameter
Rated voltage kV 12 24
Rated current A 630 and below 630 and below
Cross section of cable mm2 25~400 35~400
Resistance in connection point μΩ 40 45
Partial discharge pC/kV 10/13 10/21.5
Rated short time withstand current kA/s 20/3 25/2
Rated peak withstand current kA 50 63
1 min power frequency withstand voltage kV 42 65
Lightning impulse withstand voltage kV 75 125