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? 概述 SUMMARY
GZDW-01 型鎘鎳蓄電池直流屏是我廠總結(jié)了多年的制造以驗(yàn)，搜集了數(shù)百個(gè)變電站的運(yùn)行記錄，廣泛征求設(shè)計(jì)和使用單位意見，針對(duì)目前國(guó)內(nèi)同類產(chǎn)品普遍存在的一些問(wèn)題而設(shè)計(jì)更新?lián)Q代型產(chǎn)品。適用于電力系統(tǒng)中小型發(fā)電廠、變電站及以下工礦企業(yè)配電室，作為高壓斷路器直流操作機(jī)構(gòu)的分合閘電源及控制回路、繼電保護(hù)、信號(hào)回路、事故照明的直流電源。
GZDW-01 cadmium-nickel battery DC screen is an updated product designed by our factory, which has summarized the manufacturing experience for many years, collected the operation records of hundreds of substations, and extensively solicited the opinions of design and users. It is suitable for distribution rooms of small and medium-sized power plants, substations and industrial and mining enterprises below in power system, and is used as the DC power supply for switching on and off the DC operating mechanism of high-voltage circuit breakers, as well as for control circuits, relay protection, signal circuits and emergency lighting.
? 工作原理 OPERATING PRINCIPLE
GZDW-01 型鎘鎳蓄電池直流屏內(nèi)裝有兩套三相可控硅整流裝置。其中 1# 整流器按穩(wěn)壓方式運(yùn)行，直接向控制母線供電，2# 整流器既可以按穩(wěn)流方式運(yùn)行，承擔(dān)對(duì)蓄電池組的主充及浮充任務(wù)，蓄電池組直接向合閘母線供電，蓄電池組經(jīng)掛鏈降壓向控母供電，以保障控制母線在任何情況下都保持電壓連續(xù)。
Two sets of three-phase thyristor rectifier devices are installed in the DC panel of GZDW-01 cadmium-nickel battery. Among them, 1 # rectifier operates in a voltage stabilizing mode and supplies power directly to the control bus, while 2 # rectifier can operate in a current stabilizing mode and undertake the main charging and floating charging tasks for the battery pack, which supplies power directly to the closing bus, and the battery pack supplies power to the control bus through chain drop to ensure that the control bus keeps voltage ontinuity under any circumstances.
? 主要特點(diǎn) MAIN FEATURES
?用三相全控橋式整流器代替了傳統(tǒng)產(chǎn)品中的鐵磁飽和式主充機(jī)，浮充機(jī)，克服了傳統(tǒng)產(chǎn)品穩(wěn)壓、穩(wěn)流精度低噪聲大、溫升高等缺點(diǎn)。
?備用通道的調(diào)入方工采用無(wú)觸點(diǎn)開關(guān)動(dòng)投入。
?本系列直流屏對(duì)蓄電池的充電采用較佳的充電方式，前期恒流，后期恒壓，并可實(shí)現(xiàn)充電狀態(tài)的自動(dòng)轉(zhuǎn)換。
?本系列直流屏設(shè)有自動(dòng)穩(wěn)流，動(dòng)穩(wěn)壓、限流、短路保護(hù)及過(guò)壓保護(hù)功能。
?整機(jī)可對(duì)外輸出母線電壓高低，母線接地，充電機(jī)故障等信號(hào)接點(diǎn)
? Three-phase fully-controlled bridge rectifier is used to replace the ferromagnetic saturated main charger and floating charger in traditional products, which overcomes the shortcomings of traditional products such as low voltage stabilization, low current stabilization accuracy, high noise and high temperature rise.
? Non-contact switch shall be used for the transfer-in of the spare channel.
? This series of DC screens adopt the best charging mode for battery charging, with constant current in the early stage and constant voltage in the later stage, and can realize automatic conversion of charging state.
? This series of DC screens have the functions of automatic current stabilization, dynamic voltage stabilization, current limiting, short circuit protection and overvoltage protection.
? The whole machine can output signal contacts such as bus voltage, bus grounding and charger failure.
