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1、GW23A-252 型 隔 离 开 关GW23A-252 DISCONNECTOR安 装 维 修 使 用 说 明 书INSTALLATION MAINTENANCE OPERATION MANUAL编号：0TK.466.5029No：0TK.466.5029山东泰开隔离开关有限公司Shandong Taikai Disconnector Co., Ltd二一年七月July. 2010TK GW23A-252 Disconnector Catalogue、General. 2、Working conditions. 2、Characteristics. 3、Classification and
2、Technical Parameter. 4、Product structure and the operation principle. 5、Packaging and delivery. 8、Inspection and storage. 8、Unloading and lifting. 9、Installation and debugging. 9、Acceptance and fine-tuning before installation on site 13、Accompanying document 14、 Ordering instructions 141TK GW23A-252
3、 Disconnector 、 General1.1 Product usageGW23A-252D(W) series is a three-phase, AC, HV disconnector of double post, horizontal break, single arm shrinkable clamp style.（briefed as “GW23A-252 disconnector”）is used in power supply system with rated frequency 50Hz and rated voltage 252kV, providing HV l
4、ine to transition under no load conditions as well as disconnecting the repaired HV busbar、circuit breaker and other high voltage electric equipment and between live HV lines. At the same time, it also applied when mode of operation in power system need to change during reversing switch to carry out
5、 charging current for switching busbar 、voltage transformer and lightening arrester.1. The Explanation of Product specifications（Examples） G W 23A - 252 D (W) / J 3150- 50Rated short-time withstand currentRated current Motor operation mechanismImproved design serial number anti-pollution typewith ea
6、rth switchRated voltagedesign serial number outdoordisconnector 1.2 Standard u GB 1985-2004 HV AC Disconnecting Switch and Earth Switchu GB/T 11022-1999 Common Technical Requirement for HV Switchgear and Control Gearu DL/T 486-2000 Order Technical Requirement for Disconnector and Earth Switchu DL/T
7、593-2006 HV AC Disconnecting Switch and Earth Switch、Working conditionsu Ambient temperature: -50+50；u Height above sea level no more than 2000m（2500m and more we can improve product adaptability according to the customers requirements）；u wind presssure no more than 700Pa（equal to wind speed no more
8、 than 34m/s）；u seismic intensity no more than 9 degree；u ice coating thicknessno more than 20mm；u Pollution classes or ；u The mounting place should be far from inflammable, explosive, corrosive danger and violent vibration。u Special working conditions shall be solved by clients and manufacturer.、Cha
9、racteristicsGW23A-252disconnector is a kind of perfected and improved disconnector (conforming to SGCCs requirement) developed on the basis of GW23A-252. The moving contact system is of robotic manipulator structure, which provides beautiful outline, excellent electric and mechanical performances, g
10、ood ability in resisting corrosion and earthquake and reduces the longitudinal distance of the power station, saves occupying area、down leads and insulators comparing with other kind of disconnectors. It provides the following characteristics: a. The main circuit adopts top-grade anti-rust al-alloy
11、that provides excellent conducting capacity, light weight, high mechanical intensity; the driving part of the main blade, balance spring, clamping spring, reset spring are designed in the conduct pipe to be free from the outside environment influnence. b. The fixed contacting surface is tinplated; c
12、hange the structure of the static connector, enhance the contacting stress of the dynamic and static connectors; add insulating components to the upper conductive rod(avoid branching); measures are adopted to ensure the conductive circuit is not to hot, such as, sealing glum is daubed to the fixed c
13、onductive contacting surface to avoid the entering of the water and moisture.c. Every part of the main blade all adopts fixed soft connecting through-flow, soft connection adopts pure aluminum material, silver plating on the conductive connecting surface, good conductive and flowing ability, Anodic
14、oxidation processing is conducted to every layer of the soft connection to ensure the processing of the no corrosion of the soft connecting net. d. Top pressure tripping device is improved to insure reliable making and keep good working state under the action of wind force and electric dynamic force. Modify the insulating roller into stainless roller to avoid aging and fragment.e. Rotating link adopts no oil lubricated bearings and insulating no oil bearing, transmission link adopts
