Sf6 17.5kv ring main unit
Sf6 17.5kv ring main unit
| Payment Type: | L/C,T/T |
|---|---|
| Min. Order: | 1 Set/Sets |
| Delivery Time: | 25 Days |
| Packaging: | wooden case or packaged as customer require |
|---|---|
| Brand: | CHFE |
| Place of Origin: | Shanghai, China (Mainland) |
| Supply Ability: | 500 Set/Sets per Month 24kv ring main unit |
Basic Info
Model No.: HXGN-12/24 ,SM6 SF6 Ring Main Unit
Product Description
Specifications 1.Over 30 years ISO9001 manufacturer
2.Easy installation
3.Modular design
4.Maintance-free
5.Safe for operation
Feautre and benifits: 1.7kv to 36kv are available 2. Compact and modular design 3, flexible and smart 4 .Ease of installation and maintenance-free 5 .Ease and safe to operate 6. Competitive price Description The SF6 Ring main unit is made up of modular units containing fi xed, disconnectable orwithdrawable metal-enclosed Switchgear, using sulphur hexafl uoride (SF6) or vacuum. The SF6 Ring main unit are used for the MV section in MV/LV Transformer substations in publicdistribution systems and MV consumer or distribution substations up to 36 kV. Normal operating conditions
Ambient air temperature:
1) less than or equal to 40°C
2) less than or equal to 35°C on average over 24 hours
3) greater or equal to –5°C.
Altitude
1) less than or equal to 1000 m
2) above 1000 m, a derating coeffi cient is applied (please consult us).
Solar radiation
1) no solar radiation infl uence is permitted.
b Ambient air pollution
1) no signifi cant pollution by dust, smoke, corrosive and/or fl ammable gases,
vapours or salt.
Humidity
1) average relative humidity over a 24 hour period, less than or equal to 95%
2) average relative humidity over a 1 month period, less than or equal to 90%
3) average vapor pressure over a 24 hour period, less than or equal to 2.2 kPa
4) average vapor pressure over a 1 month period, less than or equal to 1.8 kPa.
For these conditions, condensation may occasionally occur. Condensation can be
expected where sudden temperature changes occur in periods of high humidity.
To withstand the effects of high humidity and condensation, such as breakdown of
insulation, please pay attention on Civil Engineering recommendations for design
of the building or housing, by suitable ventilation and installation. Electrical characteristics
Product picture
We are always at service ,please feel free to consult us anytime ! Contact us if you need more details on 17.5kv Ring Main Unit. We are ready to answer your questions on packaging, logistics, certification or any other aspects about 17.5kv Sf6 Ring Main Unit、Sf6 17.5kv Ring Main Unit. If these products fail to match your need, please contact us and we would like to provide relevant information.
2.Easy installation
3.Modular design
4.Maintance-free
5.Safe for operation
Feautre and benifits: 1.7kv to 36kv are available 2. Compact and modular design 3, flexible and smart 4 .Ease of installation and maintenance-free 5 .Ease and safe to operate 6. Competitive price Description The SF6 Ring main unit is made up of modular units containing fi xed, disconnectable orwithdrawable metal-enclosed Switchgear, using sulphur hexafl uoride (SF6) or vacuum. The SF6 Ring main unit are used for the MV section in MV/LV Transformer substations in publicdistribution systems and MV consumer or distribution substations up to 36 kV. Normal operating conditions
Ambient air temperature:
1) less than or equal to 40°C
2) less than or equal to 35°C on average over 24 hours
3) greater or equal to –5°C.
Altitude
1) less than or equal to 1000 m
2) above 1000 m, a derating coeffi cient is applied (please consult us).
Solar radiation
1) no solar radiation infl uence is permitted.
b Ambient air pollution
1) no signifi cant pollution by dust, smoke, corrosive and/or fl ammable gases,
vapours or salt.
Humidity
1) average relative humidity over a 24 hour period, less than or equal to 95%
2) average relative humidity over a 1 month period, less than or equal to 90%
3) average vapor pressure over a 24 hour period, less than or equal to 2.2 kPa
4) average vapor pressure over a 1 month period, less than or equal to 1.8 kPa.
For these conditions, condensation may occasionally occur. Condensation can be
expected where sudden temperature changes occur in periods of high humidity.
To withstand the effects of high humidity and condensation, such as breakdown of
insulation, please pay attention on Civil Engineering recommendations for design
of the building or housing, by suitable ventilation and installation. Electrical characteristics
Item | Unit | Data | |
Rated Voltage | KV | 12/17.5 | |
Rated Lighting impulse withstand voltage | Alternate and reactive | KV | 75/125 |
Breaking | 85/145 | ||
1 min power frequency withstand voltage | Alternate and reactive | KV | 42/65 |
Breaking | 48/79 | ||
Rated frequency | HZ | 50/60 | |
Rated Current | Main busbar | A | 1250/630 |
Branch busbar | 1250/630 | ||
Rated short time withstand current | Major loop | KA | 20/3S |
Ground loop | 20/2S | ||
Rated peak withstand current | KA | 50 | |
Transfer current | A | 1700/800 | |
Grade of protection |
| IP3X | |
Mechanical life of load switch | Time | 2000 | |
Mechanical life of earthing switch | Time | 2000 | |
Product picture
We are always at service ,please feel free to consult us anytime ! Contact us if you need more details on 17.5kv Ring Main Unit. We are ready to answer your questions on packaging, logistics, certification or any other aspects about 17.5kv Sf6 Ring Main Unit、Sf6 17.5kv Ring Main Unit. If these products fail to match your need, please contact us and we would like to provide relevant information. Product Categories : Switchboards & Switchgears > Other Switchboards Switchgears
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