1 概述 Overview

KYN28A-12型鎧裝移開式交流金屬封閉開關(guān)設(shè)備，是在吸收國內(nèi)外先進制造技術(shù)的基礎(chǔ)上自行開發(fā)設(shè)計的新型產(chǎn)品，適用于3.6-12KV三相交流50Hz單母線分段系統(tǒng)的成套配電裝置，主要用于發(fā)電廠、工礦企事業(yè)配電及電力系統(tǒng)二次配電、送電及大型高壓電動機的啟動等，對其實行控制、保護、監(jiān)測之用。開關(guān)柜滿足IEC60298、GB3906等標準要求，具有防止帶負荷推拉斷路器手車、防止誤分誤合斷路器、防止接地開關(guān)處在閉合位置時關(guān)合斷路器、防止誤入帶電隔室、防止帶電時誤合接地開關(guān)的聯(lián)鎖功能，可配用VS1及VD4真空斷路器；是3-10KV高壓開關(guān)設(shè)備的主流產(chǎn)品，主要用于中心配電室和較重要的用電單位的末端配電室。

本產(chǎn)品符合標準：GB 3906、GB/T 11022、IEC 62271-200等標準要求。This product meets the requirements of GB 3906, GB/T 11022, IEC 62271-200, etc.

KYN28A - 12 armored open ac metal-enclosed switchgear, is on the basis of absorbing domestic and foreign advanced manufacturing technology on its own development and design of new products, applicable to 3.6-12 kv three-phase ac 50 hz single bus section system of complete sets of power distribution equipment, mainly used in power plants, industrial and mining enterprises and power distribution and power system secondary distribution, transmission and large high voltage motor starting, etc., shall be implemented for the control, protection, monitoring purposes. Switch cabinet meets IEC60298, GB3906 and other standard requirements, with the function of interlock, which can prevent the hand truck of circuit breaker from being pushed with load, prevent the circuit breaker from being wrongly divided and mistakenly closed, prevent the circuit breaker from being closed when the grounding switch is in the closed position, prevent from entering the electrified compartment by accident, and prevent the earth switch from being wrongly closed when electrified. VS1 and VD4 vacuum circuit breakers are available. It is the mainstream product of 3-10kv high voltage switch equipment, mainly used in the central distribution room and the more important end distribution room.

開關(guān)設(shè)備的外殼選用敷鋁鋅薄鋼板經(jīng)CNC機床加工，采取多重折邊工藝，板式結(jié)構(gòu)，無焊組合工藝。精度高，抗腐蝕與抗氧化作用強，機械強度高、外形美觀，通用性強。柜體采用組裝式結(jié)構(gòu)，用鉚螺母和高強度的螺栓聯(lián)接而成。加工生產(chǎn)周期短、零部件通用性強、占地面積小。表面無須進行酸洗、磷化等化學處理過程，生產(chǎn)過程環(huán)保無污染。

柜體設(shè)母線室，開關(guān)室、儀表室、小母線室、電纜室等間隔，各隔室相對獨立，互不影響，關(guān)鍵部位設(shè)有觀察窗，頂部各室設(shè)有泄壓裝置，發(fā)生電氣事故時可從頂部有效泄壓，保護操作人員。聯(lián)鎖機構(gòu)確保各隔室之間的操作符合安全性和程序性要求，安全性極高。開關(guān)、隔離手車，PT手車采用抽出式安裝方式，通過軌道、活門機構(gòu)、動靜觸頭與主母線進行聯(lián)結(jié)和分離，高壓柜在運行中可移出需檢修部位的小車進行檢修作業(yè)，不影響正?；芈返倪\行；采用模塊化設(shè)計思想，相同規(guī)格的開關(guān)或PT具有完全的互換性，可靠性高。

開關(guān)設(shè)備由柜體和中置可抽出部件(即手車)兩大部分組成。柜體分四個單獨的隔室，外殼防護等級為IP4X，各小室間和斷路器室門打開時防護等級為IP2X。具有架空進出線、電纜進出線及其它功能方案，經(jīng)排列、組合后能成為各種方案形式的配電裝置。

The shell of the switch equipment is made of aluminum-zinc-coated thin steel plate processed by CNC machine, which adopts multiple edge folding process, plate structure and weld-free combination process. High precision, corrosion resistance and oxidation resistance, high mechanical strength, beautiful appearance, strong versatility. The cabinet body is assembled with rivet nut and high strength bolt. Short processing and production cycle, strong parts and components, small area. The surface does not need pickling, phosphating and other chemical treatment, and the production process is environmentally friendly and pollution-free.

Cabinet body is equipped with bus room, switch room, instrument room, small bus room, cable room and other intervals, each compartment is relatively independent, do not affect each other, the key parts are set with observation window, the top of each room is set with pressure relief device, in the event of electrical accident can effectively relieve pressure from the top, protect the operator. Interlocking mechanism to ensure that the operation between the compartments meet the safety and procedural requirements, high safety. Switch and isolation handcart, PT handcart adopts extraction installation mode to connect and separate with main bus line through track, valve mechanism, dynamic and static contact. During operation, the high-voltage cabinet can be moved out of the car in need of maintenance for maintenance operation without affecting the operation of normal circuit. Adopting the modular design idea, the switch or PT of the same specification has complete interchangeability and high reliability.

Switch equipment by cabinet put oneself in another's position and middle buy can pull out a part (namely hand car) two major parts are composed. The cabinet is divided into four separate compartments. The protection grade of the enclosure is IP4X. The protection grade of each compartment and the breaker compartment is IP2X when the door is opened. It is equipped with overhead input-outlet line, cable input-outlet line and other functional schemes, which can be used as distribution devices of various schemes after arrangement and combination.

 

開關(guān)柜技術(shù)參數(shù) Switch cabinet technical parameters

 

 

項目 project	單位unit	數(shù)據(jù) data
額定電壓 Rated voltage	KV	12
雷電沖擊耐受電壓（全波）Lightning shock withstand voltage (full wave)	KV	75
最高工作電壓 Maximum working voltage	KV	42
額定電流 Rated current	A	630 1250 1600 2000 2500 3150 4000
額定動穩(wěn)定電流(4s) Rated dynamic stable current (4s)	KA	16、20、25、31.5、40、50
額定動穩(wěn)定電流（峰值）Rated dynamic stable current (peak)	KA	40、50、63、80、100、125
防護等級 Protection grade	IP4X外殼，IP2X手車室門打開 IP4X shell，IP2X The cabin door opened