Top Grade Seller Nh Fuse Switch Disconnector

GW7F Series is three columns, double contact break, horizontally reverse disconnector, used in power switching when high voltage lines in free of load condition, electric disconnection between inspected HV electrical equipment, such as busbar, circuit break, etc. and live HV lines.

GW7F Series HV AC disconnector is composed of three poles. Each pole is 3 columns structure, consisting of pedestal, pillar insulator, main blade, static contact-head of main blade, etc. Three pillar insulators separately are vertically installed on pedestal. The main blade is installed on the top of middle pillar insulator. Other 2 static contact-head are installed on the top of side pillar insulator. When main blade on the top of middle pillar insulator horizontally rotates for 70 degree, moving contact will insert into static contact then reverse for 45 degree, which makes static contact-fingers clamp the moving contact to finish one blade closing operation. For opening blade operation, vice versa.

Product Features:

GW7F Series disconnector is researched and developed by ourselves based on GW7A Series technology, a new-type disconnector which has reached perfect requirements of SGCC, focus on solutions for porcelain cracking, operational failure and components fault deformation, loop circuit heating, corrosion and rust that exist in long-term running, mainly focusing on improvement of product quality and operational reliability. This product has original structure, reasonable design and good performance. The specified features are followed.

1), disconnector adopts reverse type, the conductive tube is two-step operation which enables the moving contact-head to reliably connect the contact-finger. Few operational force, stable manipulation and no impact force on side pillar insulator. Main contact-head has self-cleaning ability.

2), the contact-finger side in static contact pedestal fixed on contact-head pedestal, which combined fixed coupling for reliable conductivity. Other contact-finger side generates contact pressure on contact-head through itself elasticity and external-pressured spring. It will automatically strengthen clamping force when short circuit current passes by. Contact-finger spring is made of stainless steel material with insulating pad, which avoiding the spring rust and shunt.

3), hooking plate is placed on static contact-head. When blade closed, it will lock the moving contact-head and not let it take off even under the circumstance of gale, vibration and power effect.

4), the product adopts top grade raw material and highly corrosion-prevention appearance treatment to improve its comprehensive ability for corrosion-prevention. Such as all steel-made components surface adopting hot galvanized treatment or directly choosing stainless steel material, all shaft pin made of aluminum-bronze or stainless steel material, the un-conductive contact surface on conductive tube adopts anodic oxidation treatment, etc.

5), splint and hoop connected mode is adopted between main blade mechanism and vertical lever which connecting the body, and horizontal lever which connecting three poles of earth blade instead of soldering in working site. Horizontal lever which connecting three poles of main blade adopts positive and negative thread contact connection, which realized poleless adjustment, avoiding soldering and drilling in working site. It is both convenient for customer to installation, debugging, disassembly and maintenance in working site, and avoiding corrosion and rust caused by soldering.

6), motor operated mechanism case is made of stainless steel through soldering. Manual operated mechanism is made of aluminum-alloy materials, nice appearance and good sealing. Reduction gear case of motor operated mechanism consists of famous-brand components and parts from joint ventures, good sealing and stable operation with noiselessness. The product uses international famous brand components, which has reliable working performance and complete function for locking.

  Shandong Taikai Disconnector Co., Ltd. is a wholly-owned subsidiary of Taikai Electric Group Co., Ltd., which is a large-scale and professional transmission and transformation equipment corporation engaged in designing and developing disconnecting switches and earthing switches ranging from 10kV to 1100kV. Our corporation covers 33,200 square meters, with a total floor space of 15,600 square meters. 

Our corporation has almost 30 years' history in the field of disconnecting switch production. The yield of disconnecting switches above 126kV takes the lead in the domestic trade. The products of our corporation are distributed to customers all over the country, and are also exported to more than 10 countries and regions around the world, which keeps safe operation from Qinghai-Tibet Plateau which is about three kilometers above the sea level to Xinjiang and Inner Mongolia Autonomous Regions with severe blown-sands, from Heilungkiang province covered by ice in the winter to Guangxi and Yunnan provinces with a hot and wet summer. Our corporation is the main supplier of transformer station over 252KV demanded by the centralized invite bidding project of the State Grid Corporation of China. 

''Keep the lead position in the domestic market and strive to become the first class in the world'' is the aim that our company will continuously adhere to. Our whole staff is determined and confident to expand the disconnecting switch industry, with the enterprise spirit of ''Integrity and Honesty, Pragmatism and Innovation''. Our whole staff will be specialized in making our company be the disconnecting switch base, and providing more and better service for customers at home and abroad with high-quality products, which guarantees that our company will develop into an internationally first-class corporation.