iSM6-7.2Kv Series Air Insulation 7.2kv Ring Main Unit Switchgear

Description
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. iSM6 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.
 
 
Feature
The iSM6 range is made up of modular units containing metal-enclosed SF6 switchgear, using Sulphur hexafluoride (SF6) or vacuum:

switch-disconnector;

iVD4S vacuum circuit breaker;

Vacuum contactor;

disconnector.

 
Unit definitions
Below is the list of iSM6 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-isolation vacuum type circuit breaker;

DM1-W, DM1-Z withdraw able single-isolationSF6 type circuit breaker;

DM2 double-isolation SF6 type circuit breaker;

CM, CM2 voltage transformers;

GBC-A, GBC-B current and/or voltage measurements;

Standards
iSM6 units meet all the following recommendations, standards and specifications:

IEC:60694:

IEC62271-200

IEC60265

IEC60420

IEC60255

IEC62271-100

IEC62271-102

 
Designation
iSM6 units are identified by a code including:

an indication of the function, i.e. the electrical diagram code: IM, QM, DM1, CM, DM2, etc.

the rated current: 400 - 630 - 1250 A;

the rated voltage: 7.2 - 12 - 17.5 - 24 kV;

the maximum short-time withstand current values: 12.5 - 16 - 20 - 25 kA.1 s;

the color is of RAL 9002 type (frosted satin white).

Example for a unit designated: IM 400 - 24 - 12.5

IM indicates an "incoming" or "outgoing" unit;

400 indicates the rated current is 400 A;

24 indicates the rated voltage is 24 kV;

12.5 indicates the short-time withstand current is 12.5 kA.1 s.

 
The hereunder values are for working temperatures from -5°C up to +40°C and for a setting up at an altitude below 1000 m.
Internal arc withstand:

standard:12.5 kA. 0.7 s;

enhanced:16 kA. 1 s.

Protection index:

units: IP2XC (IP3X consult us);

between compartments: IP2x.

Electro-magnetic compatibility:

relays: 4 kV withstand capacity, as per recommendation IEC 60801.4;

compartments:

electrical field:

Temperatures:
The cubicles must be stored in a dry area freefrom dust and with limited temperature variations.

for stocking: from -40°C to +70°C,

for working: from -5°C to +40°C,

other temperatures, consult us.

 
Main characteristics

The making capacity is equal to 2.5 times the short-time withstand current.
 
Maximum breaking capacity

Unisun Electric was founded in August 1987, formerly known as the original Yueqing Great Wall electrical equipment factory, founded by Mr. Huang in June 1987, Mr HUANG is also founder of YUEQING QIUJING SWITCH FACOTRY(FORMER OF CHIINT AND DELIXI).

After more than 30 years of development, the products cover Medium Voltage Switchgear, low voltage switchgear, Busbar Trunking System, Pole Top Switch, Transformers, Instrument Transformer, Ring Main Unit, Load Break Switch.

Unisun Electric has more than 600 offices and sales companies in all major cities in China, with 81 holding companies and more than 300 foreign-invested cooperative companies, with more than 3, 500 elite employees, including 450 scientific and technical personnel Operating area of 127, 000 square feet, the products are exported all over the world.

Over the years the company has been committed to the development of national electrical industry, and many scientific research institutes, universities and international industry giants to establish close cooperation, set up a "Anhui LV Power Technology Research Institute".

2009 and the United States General Motors (GE) strong combination, to create the Asia-Pacific region's largest and most professional marine switchgear and low-voltage electrical equipment, has developed the GEA plus2.0, Modula plus, Modula 630k, marine transformers, marine box substation, Marine electrical automation equipment, tunnel dedicated distribution cabinet and other products.

Unisun Electric in accordance with the modern enterprise advanced management mode, established a scientific and sound management system, in strict accordance with the ISO9001: 2000 quality management system for production, sales and service, such as comprehensive, strict and scientific control and management, 2008 and have imported ISO14001: 2004 environmental management system and OHSAS18000 occupational health and safety management system, to create an environmentally friendly, healthy, safe and harmonious new enterprise.

The company's production and development of products, have passed the 3C, CQC, UL certification, and have access to "YUEQING FAMOUYS MARK", "Zhejiang Famous Brand Product", "China's well-known high and low voltage switchgear products top ten brands", "China's leading enterprises", "China's top ten brands", "China's top ten brands", "China's top ten brands, " "China's top ten brands, " "China's top ten brands" Big influence brand ", " national famous product after-sales service advanced unit "honorary title.

The twenty-first century is the era of knowledge economy, enterprise competition and development with the opportunity, both opportunities and challenges. And excellent in the "in good faith as a fundamental, customer-centric, quality of survival, innovation and development" business philosophy, the spirit of "seeking cooperation and win-win cooperation" business philosophy sincerely welcome friends at home and abroad work together, A total of the glorious future, create greater glory!