Product Description
Product Description
SM66 Air Insulation Ring Main Unit
Medium Voltage Switchgear
The Unisun enjoy more than 16 year experience manufacture SF6 Ring main Unit in china. We import first APG line from Germany to localized air pressure guage production craft, our APG manufacturing including SF6 switch disconnector, embedded pole and etc epoxy resin insulation parts. SM66 units are used for the MV section in MV/LV transformer substations in public distribution systems and MV consumer or distribution substations up to 24 kV.FeatureThe SM66 range is made up of modular units containing metal-enclosed SF6 switchgear, using Sulphur hexafluoride (SF6) or vacuum:switch-disconnector;VD4S vaccum circuit breaker;Vacuum contactor;disconnerctor. Unit definitionsBelow is the list of SM66 range units used in MV/LV transformer substations and industrial distribution substations:IM, IMC, IMB switch;PM fused switch;QM, QMC, QMB fuse-switch combination;CRM contactor and contactor with fuses;DM1-A, DM1-D, DM1-S single-isolationSF6 type circuit breaker;DMV-A, DMV-D, DMV-S single-isolationvacuum type circuit breaker;DM1-W, DM1-Z withdrawable single-isolationSF6 type circuit breaker;DM2 double-isolation SF6 type circuit breaker;CM, CM2 voltage transformers;GBC-A, GBC-B current and/or voltagemeasurements; StandardsSM66 units meet all the following recommendations, standards and specifications:IEC:60694:IEC62271-200IEC60265IEC60420IEC60255IEC62271-100IEC62271-102
Main characteristics| Rated voltage (kV) | 7.2 | 12 | 17.5 | 24 |
| Insulation level | | | | |
| 50 Hz, 1 mn | Insulation | 20 | 28 | 38 | 50 |
| (kV rms) | Isolation | 23 | 32 | 45 | 60 |
| 1.2/50μs | Insulation | 60 | 75* | 95 | 125 |
| (kV peak) | Isolation | 70 | 85 | 110 | 145 |
| Breaking capacity |
| Transformer off load (A) | 16 |
| Cables off load (A) | 31.5 |
| Short-time withstand current | 25 | 630 - 1250 A |
| (kA.1 s) | 20 | 630 - 1250 A |
| | 16 | 630 - 1250 A |
| | 12.5 | 400 - 630 - 1250 A |
The making capacity is equal to 2.5 times the short-time withstand current.
* 60 kV peak for the CRM unit.
Maximum breaking capacity| Rated voltage (kV) | 7.2 | 12 | 17.5 | 24 |
| Units | |
| IM, IMC, IMB, | 630 A - 800 A* |
| NSM-cables, NSM-busbars |
| PM, QM, QMC, QMB | 25 kA | | 20 kA | |
| CRM | 10 kA | 8 kA | | |
| CRM with fuses | 25 kA | | | |
| SF6 circuit breaker range: |
| DM1-A, DM1-D, DM1-W, DM1-Z, DM1-S, DM2 | 25 kA | 20 kA |
| Vacuum circuit breaker range: |
| DMV-A, DMV-D, DMV-S | 25 kA | 20 kA |
| | | | | | | |
* in 800 A consult us.
ATTENTION:
1.The payment term: We accept TT,30% deposit and 70% balance against copy of BL.
2.The delivery time: Usually it will take about 15-20 days.
3.The standard of package: Usually use strong plywood case for protection.
4.The material of transformer: We have two types, one is with copper and another one is with aluminum. It depends on your requirement. In fact, those two have difference if normal work well. Only except the long life. Copper is better and also higher price.
5.The logo: If you have good quantity, it absolute no problem to do OEM.
6.Our market: our products are popular in Indonesia, Philippines, Russia, USA, Middle East and so on. Some of them are our regular customers and some of them are developing. We hope you can join us and make mutual benefit from our cooperation..
7.Warranty: in 12 month since BL date.
OUR SERVICE:
1.quick response in before sales period help you got order.
2.excellent service in production time let you know each step we made.
3.reliable quality solve you after sale headache.
4.long period quality warranty ensure you can buy without hesitate.
WHY CHOOSE ROCKWELL:
1. One-stop supplier globally.
2. More than 10 years professional experiences in electrical appliance industry.
3.We offer professional online technology support for perfecting your electrical solution free.
4. Experienced sales service and suggestion.
5. All the products with accessories under strict quality control and final inspection before shipping.
6. We can assure the powerful competitive price and reliable quality products.
7. Most competitive shipping rate from our own shipping forwarder.
8. Warranty assurance: 12 month
9. Whatever big or small order, we can provide you one-to-one service.
CONTACT US:
Contact person: Mr. Chen Chengming
Tel:86-577-27869969
Mobile:86-18668777248
Your Best Choice for Electrical Appliances Industry!!!
Please leave an inquiry to know more details about Price , Packing ,Shipping and Discount.
Wenzhou Rockwell Transformer Co., Ltd. is a high-tech enterprise invested by Rockwill Transmission and distribution Group Co., Ltd. Our company is specialized in developing, manufacturing and marketing Single phase & three phase automatic step voltage regulator, Auto-transformers, power transformers, preventive auto transformer, CT and PT combinated Metering unit, and compact transformer and pad moubted substations.
Our company enjoys a worldwide reputation for our superior quality and service. In addition to the domestic market, our products are exported to America, Australia, Central Europe, Eastern Europe, Southeast Asia, the Middle East, Africa and other regions and countries.
Besides a great variety of products, we also provide you with professional technical solutions and services. If you have any problem, please feel free to contact us and our technicians will find a complete solution for you.
We always embrace the idea of developing together with customers and always try our best to provide users with safer, easier, greener and more energy-saving high and medium voltage electric equipment and components.
Note:
Rockwell's sister company Rockwill is offering manufacturing for MV and LV switchgears, ring main units, vacuum(gas) circuit breakers, reclosers, load break switches and Low voltage metering unit, Current transformer, Voltage transformer.
