Mv Fully Sealed and Gas Insulated Switchgear Ring Main Unit (RMU) Electrical Gis Switchgear Power Distribution Cabinet

• Certification: ISO9001
• Shell Material: Stainless Steel
• Voltage Level: Medium Voltage
• Model NO.: GRM
• Transport Package: Wooden Case
• Trademark: GRENO
• Origin: Xiamen, China
• Production Capacity: 5000PCS/Year

Product Description

Sf6 Gas Insulated Switchgear Rmu Ring Main Unit

GRM is completely insulated SF6 gas ring main unit switchgear hereinafter short as GIS RMU,
This product is in conformity with the standards the GB/IEC standard and the design of a high safety combined switch cabinets.
For GRM serie switchgear , there are normally 3 kinds panel type:

GRM- C : Load Break Switch
GRM-F : Load Break Switch + Fuse
GRM-V :  Vacuum Circuit Breaker
 

Service Environment

• Air Temperature: Maximum temperature: +40ºC; Minimum temperature: -25ºC
• Humidity: Monthly average humidity 95%; Daily average humidity 90%
• Altitude above sea level: Maximum installation altitude: 3000m
• Ambient air not apparently polluted by corrosive and flammable gas, vapor, etc.
• No frequent violent shake

WHY CHOOSE POWERTECH:

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.  

Reference standard:

• IEC 62271-100: High voltage alternating current circuit breakers
• IEC 62271-105: Alternating current switch-fuse combination
• IEC 62271-102: Alternating current disconnectors and earthing switches
• IEC 62271-200: A.C. metal enclosed switchgear and controlgear for rated voltage above 1 kV and up to and including 52 kV
• IEC 62271-103: High voltage switches for rated voltage above 1 kV and less than 52 kV
• IEC 60694: Common specifications for high-voltage switchgear and controlgear standards
• IEC 60265-1: Switches for rated voltages above 1 kV and less than 52 kV
• IEC 60529: Degrees of protection provided by enclosures (IP Code)

Remark:

Fuse combined electrical follow IEC 60420

VCB unit according to IEC 62271-100/GB1984-2003

Technical Datas

Item	Unit	Switch	Switch-fuse	Vacuum circuit-breaker
Rated voltage	kV	24	24	24
Power frequency withstand voltage	kV	50	50	50
Impulse withstand voltage	kV	125	125	125
Rated current	A	630	200 1)	200
Breaking capacities:
active load	A	630
closed loop	A	670
off load cable charging	A	141
off load transformer	A		20
earth fault	A	160
earth fault cable charging	A	91
short-circuit breaking current	kA		see 2)	16
Making capacity	kA	40	see 2)	40
Short time current 0,5 sec	kA			16
Short time current 1 sec	kA			16
Short time current 3 sec	kA	16

OUR SERVICE:

1.Quick response  before sales thus help you get order.
2.Excellent service in production schedule keep you informed about every step.
3.Reliable quality solve your after sales headache.
4.Long period quality warranty ensure purchase without hesitate.