SM66-24 SF6 ring main unit

Certification
CCC, ISO9001
Installation
Fixed
Structure
Floorstanding
Shell Material
Aluminum Alloy
Voltage Level
High Voltage
Current
AC
Contact Now
SM66-24 SF6 ring main unit

Description

General:
SM66-24 unit type SF6 RMU with SF6 load switch as main switch, for whole cabinet is suitable for electric distribution automation and compact also expandable metal close switchgear. It characters in its simple structure, flexible operation, reliable interlocking and convenient installation etc., which can provide the satisfactory technical projects both for different application occasions and users. With the adoption of sensor technology and the protection relay up to date, plus the advanced technology and flexible assembly project, SM66-12/24 unit type SF6 RMU can completely meet the requirement of continuously variable market. It can take self-produced RLS-12/24 load break switch; also according to the demand of users can be assembled with the internationally top-ranking RCB series vacuum circuit breaker with permanent magnetic mechanism made by AREVA or HD4 type SF6 circuit breaker made by AREVA or HD4 type SF6 circuit breaker made by ABB or with our VSC-12/24 type vacuum circuit breaker with permanent magnetic mechanism. Operational methods for the main switch inside ring main unit can be either manual or electric power driven. And It can meet the requirement of "Four Controls" when matched with FTU and RTU.

 

Service enviromenet:
a) Air temperature: Maximum temperature: +40℃; Minimum temperature:-5℃
b) Humidity: Monthly average humidity 95%; Daily average humidity 90% .
c) Altitude above sea level: Maximum installation altitude: 2000m
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
e) No frequent violent shake

 

Units for all functions:
1. Incoming unit with switch disconnector(Load break switch) schemas With other extra components optional
2. Outgoing unit with Fuse-switch protection schemas With other extra components optional
3.Incoming/outgoing circuit breaker protection schemas With other extra components optional
4. MV metering schemas With other extra components optional
5. Casings (Bus bar Panel) schemas With other extra components optional

Note: For short circuit breaking and peak current is based on Fuse plus combination.

Technical data

No.

Item

Unit

Parameter

1

Rated voltage

kV

24

2

Rated frequency

Hz

50/60

3

Rated current

A

630/800

4

1min Power frequency withstand voltage

kV

60

5

Lightning impulse withstand voltage

kV

125/150

6

Rated short circuit breaking current (peak)

kA

63

7

Rated active load/close circuit breaking current

A

50

8

Rated transferring current

A

1200

9

Rated short circuit making current (peak)

kA

63

10

Rated cable(line) charging breaking current

A

50 and 10

11

Cable charge breaking current in earthing fault

A

20

12

Rated withstand current (peak)

kA

63

13

Short time withstand current (2s)

kA

25

14

Mechanism life

times

2000

Feedback

Security Seal LC1-F AC Contactor AC Contactor Stainless Steel Wire Braided Connectors Copper Clad Aluminum (CCA) Wire Braided Connectors Sanitary Tee Sanitary Valve Actuation Ball Valve SCR SSR NOX Sensor Sanitary Rotor Lobe Pump Needle Valve 卫生泵 卫生泵 Push Button Bolt seal 100-400W LED Emergency Kit Check Valve Auto Flashers 汽车继电器 Outdoor Vacuum Circuit Breaker Heat Exchanger