电气变压器中性点保护装置说明书.doc

此文档收集于网络，如有侵权，请联系网站删除AJX-ZBZ型变压器中性点接地成套保护装置AJX-ZBZ transformer neutral grounding sets of protective devices产 品 使 用 手 册Product Selection Guide西安安捷迅电气有限公司Xian An superb-Electric Co., Ltd.中国 西安Xian, ChinaAJX-ZBZ型变压器中性点接地成套保护装置AJX-ZBZ transformer neutral grounding sets of protective devicesl 定义DefinedAJX-ZBZ型变压器中性点接地成套保护装置，由变压器中性点用金属氧化物避雷器、高压隔离开关、电流互感器、放电间隙和在线监测器构成。主要适用于35kV、110kV、220kV和330kV电力变压器中性点接地回路，用来实现变压器中性点直接接地运行和通过间隙与避雷器接地运行两种不同方式的转换，防止在系统发生故障时，引起的变压器中性点电压升高而造成变压器的损坏。同时，给继电保护装置或故障指示装置提供信号。可广泛应用于电力、冶金、石化、矿山等领域。AJX-ZBZ type transformer neutral grounding complete protection device, the transformer neutral point of metal oxide surge arresters, high voltage disconnect switch, current transformer, the discharge gap and on-line monitor. Applicable to 35kV, 110kV, 220kV and 330kV power transformer neutral point ground loops used to implement the transformer neutral grounding operation and conversion through the gap and arrester ground running in two different ways to prevent system failure, causing transformer neutral point voltage rise caused by damage to the transformer. At the same time, protection devices or failure to instruct the device to provide signals. Can be widely used in electric power, metallurgy, petrochemical, mining and other fields.产品获得国家专利，专利号：ZL 2008 2 0028920.4。Products obtained national patent, patent number: ZL 2008 2 0,028,920.4.l 采用标准 StandardGB311.1-1997 高压输变电设备的绝缘配合GB311.1-1997 high-voltage power transmission equipment, insulation coordination GB/T311.7-1988高压输变电设备的绝缘配合使用导则GB/T311.7-1988 insulation of high voltage power transmission equipment used in conjunction with the Guidelines GB 772 高压绝缘子瓷件技术条件 GB 772 high voltage insulator ceramic partsGB-1208-1997 电流互感器GB-1208-1997 current transformerGB-1207-1997 电压互感器GB-1207-1997 voltage transformerGB1985 交流高压隔离开关和接地开关GB1985 AC high voltage disconnectors and earthing switchesGB5585-1985 电工用铜、铝及其合金母线GB5585-1985 Electrical copper, aluminum and its alloy busGB/T 8287.1 高压支柱瓷绝缘子GB / T 8287.1 High voltage post insulators of ceramic materialGB/T11022-1999高压开关设备和控制设备标准的共用技术条件The GB/T11022-1999 high-voltage switchgear and control equipment standard shared technical conditions GB2900.1-1982 电工名词术语基本名词术语GB2900.1-1982 Electrotechnical terminology terminologyGB-11032-2000 335kV交流无间隙金属氧化物避雷器GB-11 032-2000 3 35kV AC gapless metal oxide surge arrestersDL/T 620-1997 交流电气装置的过电压保护和绝缘配合DL / T 620-1997 over-voltage protection of AC electrical installations and insulation coordinationDL/T 621-1997 交流电气装置的接地DL / T 621-1997 exchange of electrical installations in groundDL/T 593 高压开关设备共用订货技术导则DL / T 593 high-voltage switchgear shared order Technical GuidelinesDL/T 486 交流高压隔离开关订货技术条件DL / T 486 High voltage isolating switches order specificationJB882 产品标牌JB8-82 signsJB3084 电力传动控制站的产品包装与运输规程JB3084 electric drive controller product packaging and transportation procedures2005国家电网公司十八项电网重大反事故措施（试行）2005 State Grid Corporation of 18 grid of major anti-accident measures (Trial)l 正常运行条件 Normal operating conditionsu 适用于户内、外安装；Suitable for indoor and outdoor installation;u 系统电网频率： 48Hz62Hz；System grid frequency: 48Hz 62Hz;u 环境温度不高于+60，不低于-60；The ambient temperature is not higher than +60 , not lower than -60 ;u 海拔高度：不超过3000米；Altitude: not more than 3000 m;u 周围空气中不应含有化学腐蚀性或可燃性气体，水蒸气等，无爆炸性尘埃；In ambient air should not contain chemical or corrosive or flammable gases, water vapor, and other non-explosive dust;u 地震烈度7度及以下地区；Seismic intensity of 7 degrees and the following areas;u 最大风速不超过35m/s。The maximum wind speed does not exceed 35m / s.u 异常运行条件，请在合同中注明。Abnormal operating conditions, specified in the contract.l 产品型号说明 The model designationl 产品特点 Featuresu 结构设计新颖、组合灵活多样，性能稳定；The structural design is innovative, flexible and diversified portfolio, stable performance;u 体积小，重量轻，便于整体吊运安装；Small size, light weight, easy installation as a whole lifting;u 中性点接地开关操动机构有手动和电动机操动机构供用户选择；Neutral grounding switch actuator manually and motor actuator for users to choose;u 采用不锈钢圆球形放电间隙，调整方便，工放电压稳定，离散性小。块化件；The stainless steel spherical discharge gap, easy adjustment, workers put the voltage stability, discrete small;u 中性点避雷器配置有在线监测器，可在线监测泄漏电流和动作次数。Neutral point arrester is equipped with online monitoring, available on-line monitoring of leakage current and the action times.l 系统原理图 System diagram GK：接地开关 GK: earthing switch K：放电间隙 K: the discharge gapCT：电流互感器 CT: Current Transformer MOA：避雷器 Of MOA: arrester J：在线监测器 J: monitor主要技术参数The main technical parameters序号项 目Project单位Unit35kV电压等级35kV voltage level110kV电压等级110kV voltage220kV电压等级220kV voltage level330kV电压等级330kV voltage class1设备规格型号Equipment specification modelkVAJX-ZBZ-35AJX-ZBZ-110AJX-ZBZ-220AJX-ZBZ-3302变压器额定电压Rated voltage of transformerkV351102203303工频耐受Power frequency withstandkV95952002304雷电冲击耐受Lightning impulse withstandkV1852504005505氧化锌避雷器型号ModelY1.5W-35/105Y1.5W-72/186Y1.5W-144/320Y1.5W-210/440额定电压Rated voltagekV3572144210雷电冲击电流下残压Lightning impulse current residual pressurekV105186320440操作冲击电流下残压perating under the impact of current residual pressurekV961742994112ms方波通流容量2ms square wave flow capacityA600800800800大电流冲击耐受试验The large current impulse withstand testkA100100100100直流1mA下参考电压DC 1mA reference voltagekV581032052850.75U1mA泄漏电流0.75U1mA leakage currentA50505050局部放电Partial dischargePC10101010工频1mA下参考电压kV3572144210持续电流试验Continuous current test全电流A1200120012001200阻性电流A3503503503506接地开关ThenGroundOpenClose额定电压Rated voltagekV3563126252额定电流Rated currentA630630630630操动机构Actuator手动、电动 Manual, electric额定短时耐受电流kA31.531.531.531.5额定峰值耐受电流kA80808080额定短时耐受电流持续时间S3333机械寿命Mechanical life3000300030003000回路电阻Loop resistance1051051051057电流互感器Current transformer额定电压Rated voltagekV10101010额定绝缘耐受水平kV12/42/7512/42/7512/42/7512/42/75绝缘形式Insulation in the form环氧浇注、油浸式 The epoxy resin casting, oil-immersed变比、精度、容量100600/5、5P20、30VA额定动稳定电流kA110110110110额定短时热电流及时间50kA、1s50kA、1s50kA、1s50kA、1s8放电间隙Discharge gap间隙形式Gap in the form球间隙、棒间隙Ball clearance, rod clearance工频放电电压kV5510%8310%16610%19010%冲击放电电压kV150215350480间隙距离Gap distancemm可调整Adjustable9在线监测器Online monitor规格型号Specifications ModelJCQ-CIJCQ-CJCQ-CJCQ-C电流测量范围mA05010010010动作电流范围50A10kA50A10kA50A10kA50A10kAl 外形结构及安装示意图 Shape the structure and installation diagramA、产品结构A product structure I本结构为AJX-ZBZ型变压器中性点接地成套保护装置常用结构，适用于35kV、110kV、220kV电压等级。由GW13型中性点交流隔离开关、金属氧化物避雷器、不锈钢放电球间隙、支柱绝缘子、电流互感器（箱）、在线监测器及安装底座组成。其性能稳定，采用了免维护底座及可靠的互锁与限位装置，现场免焊接，安装维护便捷，整体钢件采用热镀锌处理，耐腐蚀能力强，对安装空间需求小，且适应多种场合下的布置等特点而得到广泛应用。Structure AJX-ZBZ-type transformer neutral point to ground the common structure of complete sets of protective devices, applicable to 35kV, 110kV, 220kV voltage level. AC isolation switch by GW13 type neutral point, the metal oxide surge arresters, the stainless steel discharge ball clearance, post insulators, current transformer (box), on-line monitoring and installation of base composition. Its stable performance, maintenance-free base and reliable interlock and limit devices, field-free welding, easy installation and maintenance, overall steel parts are hot dip galvanized, corrosion resistance is strong demand for small installation space, and adapt to multi-characteristics of the arrangement of the kinds of occasions and widely used.产品外形图及安装尺寸如下：Product outline and mounting dimensions are as follows:项目35kV110kV220kVL(mm)210023002800W(mm)450450450H(mm)135016502050L1(mm)400400400L2(mm)400400400外形图Outline本结构适用于330kV电压等级（如右图）。由JW型中性点交流隔离开关、金属氧化物避雷器、不锈钢放电球间隙、支柱绝缘子、电流互感器（箱）、在线监测器及安装底座组成。其性能稳定，采用了免维护底座及可靠的互锁与限位装置，现场免焊接，安装维护便捷，整体钢件采用热镀锌处理，耐腐蚀能力强，对安装空间需求小，且适应多种场合下的布置等特点而得到广泛应用。This structure is applicable to 330kV voltage class (as shown). AC isolation switch, JW Type neutral metal oxide surge arresters, the stainless steel discharge ball clearance, post insulators, current transformer (box), on-line monitoring and installation of base composition. Its stable performance, maintenance-free base and reliable interlock and limit devices, field-free welding, easy installation and maintenance, overall steel parts are hot dip galvanized, corrosion resistance is strong demand for small installation space, and adapt to multi-characteristics of the arrangement of the kinds of occasions and widely used.产品外形图及安装尺寸如下：Product outline and mounting dimensions are as follows:项目330kVL(mm)3000W(mm)650H(mm)3300L1(mm)600L2(mm)300外形图Outline安装示意图Installation DiagramB、产品结构 B, the product structure II本结构为AJX-ZBZ型变压器中性点接地成套保护装置一种衍生结构，适用于35kV、110kV、220kV电压等级。由GW8型中性点交流隔离开关、金属氧化物避雷器、不锈钢放电球间隙、电流互感器（箱）及安装底座组成。由于其结构简单，性能稳定，采用了免维护底座及可靠的互锁与限位装置，现场免焊接，安装维护便捷，整体钢件采用热镀锌处理，耐腐蚀能力强，对安装空间需求小，适应多种场合下的布置等特点而得到多方面应用。根据用户需要可增加在线监测器以便在线监测泄露电流和动作次数，不锈钢放电球可改用不锈钢圆球状做放电间隙以提高工频放电的稳定性。Structure AJX-ZBZ-type transformer neutral point grounding kind of complete sets of protective devices derivative structure, applicable to 35kV, 110kV, 220kV voltage level. AC isolation switch by the GW8 neutral point metal oxide surge arresters, stainless steel discharge sphere gap, the current transformer (box) and the mounting base. Due to its simple structure, stable performance, maintenance-free base and reliable interlock and limit devices, field-free welding, easy installation and maintenance, overall steel hot dip galvanized, strong corrosion resistance, small installation space requirements to adapt to the characteristics of a variety of occasions layout and many applications. According to the need to increase the online monitor for online monitoring of the leakage current and the action times, the stainless steel discharge ball could be replaced by stainless steel spherical to a discharge gap in order to improve the stability of the frequency discharge.产品外形图及安装尺寸如下：Product outline and mounting dimensions are as follows:项目35kV110kV220kVL(mm)187518751875W(mm)400400400H(mm)125015501980L1(mm)450450450L2(mm)300300300外形图Outline安装示意图Installation Diagram C、产品结构 C, the product structure III本结构为AJX-ZBZ型变压器中性点接地成套保护装置另一种常用结构，适用于35kV、110kV、220kV电压等级。由金属氧化物避雷器、不锈钢放电球间隙、支柱绝缘子、电流互感器（箱）及安装底座组成。其结构简单，性能稳定，采用了免维护底座及可靠的互锁与限位装置，现场免焊接，安装维护便捷，整体钢件采用热镀锌处理，耐腐蚀能力强，对安装空间需求小，且适应多种场合下的布置等特点而得到广泛应用。根据用户需要可增加在线监测器以便在线监测泄露电流和动作次数。Structure AJX-ZBZ-type transformer neutral point grounding a common structure of complete sets of protective devices applicable to 35kV, 110kV, 220kV voltage level. Metal oxide surge arresters, the stainless steel discharge ball clearance, post insulators, current transformer (box) and the mounting base. Its simple structure, stable performance, maintenance-free base and reliable interlock and limit device, field-free welding, easy installation and maintenance, overall steel parts are hot dip galvanized, corrosion resistance, small installation space requirements. and adapt to the characteristics of the layout in a variety of occasions and been widely used. According to the users need to increase the online monitor for online monitoring of the leakage current and the action times.产品外形图及安装尺寸如下：Product outline and mounting dimensions are as follows:项目35kV110kV220kVL(mm)150015001500W(mm)550550550H(mm)130019302230L1(mm)500500500L2(mm)300300300外形图Outline安装示意图Installation Diagram本结构适用于330kV电压等级。由金属氧化物避雷器、不锈钢放电球间隙、支柱绝缘子、电流互感器（箱）及安装底座组成。其性能稳定，采用了免维护底座及可靠的互锁与限位装置，现场免焊接，安装维护便捷，整体钢件采用热镀锌处理，耐腐蚀能力强，对安装空间需求小，且适应多种场合下的布置等特点而得到广泛应用。根据用户需要可增加在线监测器以便在线监测泄露电流和动作次数。This structure is applicable to 330kV voltage level. Metal oxide surge arresters, the stainless steel discharge ball clearance, post insulators, current transformer (box) and the mounting base. Its stable performance, maintenance-free base and reliable interlock and limit devices, field-free welding, easy installation and maintenance, overall steel parts are hot dip galvanized, corrosion resistance is strong demand for small installation space, and adapt to multi-characteristics of the arrangement of the kinds of occasions and widely used. According to the users need to increase the online monitor for online monitoring of the leakage current and the action times.产品外形图及安装尺寸如下：Product outline and mounting dimensions are as follows:项目330kVL(mm)2000W(mm)550H(mm)3300L1(mm)500L2(mm)300外形图Outline安装尺寸图Installation dimensionsl 使用