Sm66 Air Insulation Ring Main Unit

• Customization: Available
• Certification: ISO9001
• Shell Material: Aluminum Alloy
• Model NO.: SM66
• Voltage Level: High Voltage
• Installation: Fixed
• Structure: Cabinet
• Current: AC
• Transport Package: Carton
• Specification: IEC, GB
• Trademark: Rockwill
• Origin: China
• HS Code: 8535210000
• Production Capacity: 1000PCS

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:[phone]
Mobile:[phone]
 


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