ELE 12-24kV SF6 RingMain Unit

Productfeature

Fully Insulated and Sealed Design
ELEseries switchgear contains a stainless steel tank filledwith SF₆ gas, in which the primary live parts, the busbar and switch contacts are kept. The bushing interfacedesign is via standardized outer cone bushings to EN 50180/50181 (DIN 47636),which connect the cables via insulated and shielded separable connectors. The ingress protection rating of the gas tank canreach IP67. Outside part of gas tank can resistshort-time flood and dewdrop because of special design and surface process.

Standard Modularize Design
Basicunits include loadbreak switchunit (module C andN), loadbreak switch-fusecombination unit(module T), circuitbreaker unit (moduleV and V₀), busbar switchunit (module S, D, V_S, V_D),metering unit(module M), busbar PT unit(module P), cablefeeder unit (moduleB), Z unit, Z_Dunit etc…Different modules can be combined andassembled in one SF₆ insulated tank.

Flexible Extensible Design
ELE-Fseries are un-extensible switchgear, combined by basic units in one tank. ELE-Eseries flexible extensible units provide the user with diversified solutions,for which different tank was connected electrically on the top by busbar connector.

Unique and Economic Solution for Power Cable Connection
ELEseries switch configuration scheme have outlet bushings on both sides. Itprovides unique and economic solution for multi-cable branching andsectionalizing system.

Service Conditions
1. Altitude: Notmore than 4000m.(If altitude exceed 1000m, please point out, so that pressure can beadjusted when manufacture.)
2. Ambienttemperature: +50℃ for maximum, -40℃ for minimum, no more than 35℃ for average ambient temperature within 24hrs.
3. Ambienthumidity: no more than 95% for average relative humidity within 24hrs, no more than 90% for averagerelative humidity within one moneh.
4.Installation condition: No explosive or corrosive gas in the ambient air; noshock and vibration at the field; pollution grade is not more than III gradedefined in standard GB/T 5582.
5. Accelerationof the earthquake: less than 0.3gin the horizontal direction, lessthan 0.15g in the verticaldirection.

Standards
GB3804－2004, 3.6Kv-40.5 kVHigh-voltage switches(IEC 60265-1:1998,MOD)
GB1984-2003 High-voltage circuit breaker
GB16926－1997, High-voltagealternating current switch-fuse combinations (equivalent to IEC 60420:1990)
GB1985－2004, High-voltagealternating current disconnectors and earthingswitches(IEC 62271-102:2002,MOD)
GB3906－2006, 3.6Kv-40.5 kV High-voltageswitchgear and control gear(IEC62271-200:2003,MOD)
Q/GDW-10-324-2008Technical specifications for 20KV medium voltage ring main switchgears
GB/T11022－1999, Commonspecifications for high-voltage switchgear and control gearstandards (equivalent to IEC 60694:1996)
GB/T11023－1989, Test guide of SF6gas tightness for high-voltage switchgear
GB4208－1993, Degrees ofprotection provided by enclosures (IP code) (equivalent to IEC 60529:1989)
GB/T5582-1993, External insulation pollution classes of high-voltage electric powerequipments (IEC 507:1991 REF)
DL/T404-1997 Technical specifications for ordering indoor A.C. metal-enclosedswitchgear (equivalent to IEC 60298:1981)
GB/T14436 General principles of industrial product guarantee documents
JB/T8754-1998Organization of the types of high-voltage switchgear and control gear
GB/T6388 Transport package shipping mark
GB/T13384, General specifications for packaging of mechanical and electrical products

Application
Because SF₆-insulated ring main unit ismaintenance-free, compact and independent of altitude, dewdrop, contaminant,small animals and chemical substance etc., it is widely used at manypower-supplied systems, which has high level of reliability such as commercialcenter, industrial zone, airports and speedways. SF₆-insulated ringmain unit can not only be used indoors or outdoor separately, but alsointegrated with high voltage/low－voltage prefabricatedsubstation. ELE series SF₆-insulated ring mainunit wholly brought in advanced facilities and manufacture technology, and allour products are localized made in China. The competitive costs andprompt lead-time won good reputation in the market worldwide.

Technicalspecification

As a China ring main unit manufacturer, CEE provides a comprehensive range ofmedium voltage power distribution equipment, including bushing surge arrester,separable connector, overhead short circuit fault indicator, to name a few. Ourcompany has received the ISO9001 and ISO14001 certificates, and our productshave been CCC certified. We are located in Fuzhou City, Fujian Province, which providesus with easy access to convenient sea, land and air transportation.