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接地变压器及接地电阻成套装置

  • 型号规格
  • 产品说明
  • 产品样本

SUN-NGR系列接地变压器及接地电阻成套装置

 

ENGR系列中性点接地电阻

 

ZG-NGR系列配电系统中性点接地电阻器

ZG-LR系列可控型电阻接地成套装置

 

FNGR系列普通型中性点电阻接地装置

FNGRI)系列智能型中性点电阻接地装置

FZJG)系列发电机用中性点电阻接地装置

FZJ系列组合式中性点电阻接地装置

 

THT-ZT系列变压器中性点接地电阻柜

THT-FZG系列发电机中性点接地电阻柜

THT-DZ(G) 系列低压中性点接地电阻器()

 

SUN-NGR-6.3/100-10

SUN-NGR-6.3/200-10

SUN-NGR-6.3/400-10

SUN-NGR-6.3/600-10

SUN-NGR-6.3/1000-10

 

SUN-NGR-10/100-10

SUN-NGR-10/200-10

SUN-NGR-10/400-10

SUN-NGR-10/600-10

SUN-NGR-10/1000-10

 

SUN-NGR-20/400-10

SUN-NGR-20/600-10

 

SUN-NGR-35/200-10

SUN-NGR-35/400-10

SUN-NGR-35/600-10

SUN-NGR-35/1000-10

SUN-NGR-35/1300-10

SUN-NGR-35/2000-10

 

ENGR6.3-100-10

ENGR6.3-200-10

ENGR6.3-400-10

ENGR6.3-600-10

ENGR6.3-1000-10

 

ENGR10-100-10

ENGR10-200-10

ENGR10-400-10

ENGR10-600-10

ENGR10-1000-10

 

ENGR20-400-10

ENGR20-600-10

 

ENGR35-200-10

ENGR35-400-10

ENGR35-600-10

ENGR35-1000-10

ENGR35-1300-10

ENGR35-2000-10

 

FNGR6.3-100-10

FNGR6.3-200-10

FNGR6.3-400-10

FNGR6.3-600-10

FNGR6.3-1000-10

 

FNGR10-100-10

FNGR10-200-10

FNGR10-400-10

FNGR10-600-10

FNGR10-1000-10

 

FNGR20-400-10

FNGR20-600-10

 

FNGR35-200-10

FNGR35-400-10

FNGR35-600-10

FNGR35-1000-10

FNGR35-1300-10

FNGR35-2000-10

 

THT-ZT-6.3

THT-ZT-10

THT-ZT-20

THT-ZT-35

 

THT-FZG-6.3

THT-FZG-10

THT-FZG-20

THT-FZG-35

一、公司简介 Company Introduction


    日新电气自1996年成立以来,一直致力于做电力开关和?;さ淖?,打造电网中性点安全防护第一品牌,深入研究电网中性点接地技术和接地理论,并专业生产(组合式)中性点接地电阻装置。同时在主变中性点综合?;ぷ爸玫难蟹?、生产和系统集成领域有着突出的工程业绩和竞争实力。

    日新电气多年来一直走在电网中性点安全防护产品推广应用的前沿,并竭力为客户提供中性点接地及?;ぜ际醯墓こ套裳?、方案设计、选型计算、工程实施和工程维护的全方位服务。日新电气研发制造的3000多台(套)中性点电阻接地及?;ぷ爸迷谌蚩煽吭诵?,广泛应用于电力系统、发电厂、轨道交通、机场及港口、钢铁、石化、冶金等行业,也积累了非常多的成功运行经验。实践证明,中性点经电阻接地对于提高系统运行的可靠性、安全性具有良好的效果。日新电气正逐渐成长为电网中性点安全防护领域最受欢迎的领先制造供应商。

    Since established in 1996, SUNRISE dedicates itself to the neutral grounding technology of distribution network and studying grounding theory constantly, and manufacturing neutral grounding devices professionally. It also have salient outstanding achievement and competitive strength in distribution automation system,researching、manufacturing and integration, primary equipment of power system for turnkey job. 

    As the first supplier of neutral grounding resistors in China, SUNRISE is always pioneering the neutral grounding theory research and equipment development. We provide our customers with full services including project consultation, scheme design, parameter selection calculation, engineering implementation and maintenance. Based on several years of rich experiences from firstly using neutral grounding equipment in power system, SUNRISE has successfully produced grounding resistors cabinet that is he mast suitable for power system, more than 3000 sets have been sold in the industries of power system, power plant, metro, steel, petrochemical, metallurgy and so on. Neutral grounding resistance begin to be use in China’s power distribution system in the 1990s, SUNRISE has accumulated a lot of experience of successful operation. More than 10 years of operational experience has prove that neutral grounding resistance has a good effect to improve system operation’s reliability and safety.

二、产品概述 Product General:


    SUN-NGR系列(组合式)中性点接地电阻装置适用于3~66KV以电缆线路为主的城市配电网、大型工矿企业、机场、港口、地铁等重要电力用户的配电网以及发电厂发电机和厂用电系统。

    产品电阻元件采用原装进口或国产优质镍铬合金电热金属材料,具有耐高温、抗氧化性能力强、抗拉强度高、电阻率高及阻值稳定等优良特点,尤其是在高温1000℃下仍然能够保持良好的电热金属性能,产品运行安全、可靠。

    根据不同的接线方式或客户需求,可配置环氧树脂浇注干式接地变压器、零序电流互感器、单相隔离开关、电阻器在线监测装置、加热器以及温湿度控制器等。

    SUN-NGR series neutral grounding resistors are applied to:

    l  City electric power distribution network(3-66KV)where the cable is mainly used;

    l  Important electric power customer such as large-scale industrial enterprise,airport,harbor,metro etc;

    l  Large generators and service power supply system in power plant;

    l  Others.

    The components of SUN-NGR series neutral grounding resistors are made of special stainless steel electric-heat metal imported from US.They are with outstanding characters such as high temperature-resistant capability,excellent anti-oxidation performance,strong tensile characteristics,high resistivety and stable resistance value,what’s more,it can sustain elec-tric and thermodynamic performance even under 1000℃,which enables safe and reliable operation.

    According to different connection mode or various customer requests,we can provide epoxy resin to cast dry type transformers,zero sequence current transformers,single-phase discon-necting switches,heater and thermo/humidity controllers etc.

三、产品特点 Performance Features


    SUN-NGR系列中性点接地电阻元件采用电阻专用、特殊配方的不锈钢合金制造,其主要性能特点有:

    □耐受高温:熔点为(1375-1500℃),最高使用温度1000℃;

    □抗拉强度高:抗拉强度700Mpa,在900~1000℃高温下,机械强度基本保持不变;

    □电阻率高:电阻率为1.25μΩ.m,有利于减小电阻元件尺寸;

    □阻值稳定:电阻温度系数1.05х10-4Ω/℃,在高温情况下阻值变化很小,有利于保证?;さ牧槊舳?;

    □抗氧化能力强:在1000℃左右的高温下仍能保持良好的抗氧化性能。适宜于污染严重的环境;

    □高韧性:在温度剧烈变化的运行条件下,仍保持良好的韧性,不易断裂;

    □类型齐全:按照通流能力的大小,有带状、栅格型、螺旋绕线型、肋形绕线型、平滑绕线型等多种结构类型电阻元件;

    □电阻元件??榛好恐掷嘈偷牡缱柚圃斐啥嘀止娓竦谋曜荚?,实现??榛?。通过串、并联的方法,可以任意组合,以适应您对通流能力、电压、阻值等各种参数的要求,替换方便;

    □最佳散热设计:柜体结构具有最佳的冷却气流通路,散热效果良好,消除了局部高温点和易灼烧点;

    □使用寿命长:承诺使用寿命30年??突Щ胤梅⑾?,在役在的电阻柜中,运行时间最长的已超过50年。

    SUN-NGR series neutral grounding resistor components are made of stainless steel alloy that is composed of special composition and used specially for neutral grounding resistor. The primary characteristics are as follow:

    □High temperature-resistant: The melting point is at 1375~1500,and its max working temperature is 1000℃.

    □Strong capacity of tensile strength: The intensity is at 700 Mpa, and mechanical intensity keeps constant at the high temperature of 900~1000℃.

    □High resistivity: The resistivity is 1.25Ω.m, which is propitious to reduce the size of resistor component.

    □Stable resistance value: The resistance temperature coefficient is 1.05×10/℃,resistance value increase at high temperature is little, that is good for the sensitivity of protection.

    □High antioxidaton performance: Resistance also has a high antioxidaton performance even at the temperature of 1000℃, which is deeply suitable for seriously contaminative environment.

    □High tenacity: Resister elements can keep high tenacity when the temperature changes acutely.

    □Various types: According resister′s current, there are several kinds of elements such as strap﹑grid﹑wirewound﹑edgewound﹑rib winding﹑smooth winding types etc.

    □Resister modularized: Each type resistor are made of standard components, by series connection or parallel connection to achieve kinds of parameters, elements can be replaced easily.

    □Optimal heat-dissipation design: The cabinet structure possess the optimal cooling air current passageway. The effect of heat dissipation is very good and there are no local overheat spots and burn spots.

    □Long operation life: The guarantee life is 30 years. Some resisters have operated for more than 50 years.

四、执行标准 Voluntary Standards


    DL/T780-2001         配电系统中性点接地电阻器

    GB6450               干式电力变压器

    DL/T620-1997         交流电气装置地过电压?;ず途蹬浜?/span>

    GB/T16927-1997       高电压试验技术

    GB1208-1997          电流互感器

    GB4208-1993          外壳防护等级(IP代码)

    IEEE32-1972          中性点接地装置的技术、术语和试验

    GB311.1-1997         高压输配电设备的绝缘配合

    DL/T593-1996         高压开关设备共用订货技术导则

    GB/T11022-1999       电气装置安装工程电气设备交接试验标准

    其他相关国际及电力行业标准

    DL/T780-2001        Neutral grounding resistors in electric power

                        distribution system

    GB6450              Dry type Electric transformer

    DL/T620-1997        Over-voltage protection and insulation

                        coordination for AC equipment

    GB/T16927-1997      High-voltage testing technology

    GB1208-1997         Current transformer

    GB4208-1993         Protection level of enclosure(IP Code)

    IEE32-1972          Technology,terms and test of neutral grounding

                        resistors

    GB311.1-1997        Insulation coordination of high-voltage

                        transmitting and distribution equipment

    DL/T593-1996        Common order technical requirements of high-

                        voltage switch equipment

    GB/T11022-1999      Electric equipment delivery testing criterion

                        of electric device installation Other national

                        criterion and electric power industry

                        standards.

五、  适用条件 Operation Environment


    周围空气温度:上限+50℃,下限-35℃

    海拔高度:一般不超过1000m

    风压:不大于700Mpa(相当于风速34m/s)

    地震烈度:不大于8级

    覆冰厚度:不大于15mm

    空气污秽等级:不大于IV级

    Air Temperature:≥-35℃,≤+50℃

    Altitude:≤1000m(general)

    Wind pressure: ≤700 Mpa(equal to wind speed at 34 m/s)

    Earthquake intensity: ≤magnitude 8

    lce cover: ≤15mm

    Air contamination level:≤IV

六、型号说明 Specification Instruction


    SUN -N G  R -□ /□ -□

     │ │ │ │  │  │  └额定通流时间Rated current duration

     │ │ │ │  │  └──额定电流Rated current capacity

     │  │ │ │  └────系统额定电压Rated system voltage

     │ │ │ └──────电阻器Resistor

     │ │ └────── ─接地Grounding

     │  └─────────中性点Neutral

     └───────────日新电气SUNRISE

 

七、产品种类 Product Categories


    □配电网小电阻接地电阻装置

    □配电网中电阻接地电阻装置

    □配电网高电阻接地电阻装置

    □发电机中性点高电阻接地电阻装置

    □ The low resistance grounding resistor for electric power distribution networks

    □ The moderate resistance grounding resistor for electric power distribution networks

    □ The high resistance grounding resistor for electric power distribution networks

    □ The high resistance grounding resistor for generators

八、产品参数 Parameters of products


    □ 适用电压:0.4kV~110kV

    □ 允许通流:可选

    □ 标称电阻:可选

    □ 允许通流时间:10s、30s、60s、10min、连续运行;

    □ 进出线方式:上进下出、下进下出、侧进侧出、侧进下出;

    □ 安装地点:户内、户外;

    □ 允许温升:通流时间为10s、30s、60s时为760℃;通流时间为10min时为610℃;连续运行时为385℃;

    □ 零序电流互感器:需方可选。

    □ Voltage:0.4kV~110kV;

    □ Rated current:optional;

    □ Nominal resistance:optional;

    □ Current duration:10s、30s、60s、10min、continuous;

    □ Incoming and outing line:top in bottom out、bottom in bottom out、side in side out、side in bottom out、etc;

    □ Installation site:indoor/outdoor;

    □ Allowable temperature rise:760℃ for 10s、30s、60s and 610℃for 10min and 385℃ for continuous

    □ Zero sequence current transformer:optional

九、  产品结构 product structure


    □ 标准设备包括不锈钢电阻元件、支撑绝缘子、绝缘套管、内部连线和柜体等。电阻柜的设计、制造全过程严格执行ISO9001体系进行质量控制;

    □ 不锈钢电阻元件、支撑绝缘子、绝缘套管、内部连线严格按照相关技术规范装配、连接,并经过出厂质检和出厂试验;

    □ 柜体底部加工有电阻接地端引出电缆孔和二次控制电缆引出孔;

    □ 标准外壳四周侧板上部冲成百叶窗,柜体底部距地面高度为200mm,电阻元件下方底板设计为网板,整个柜体具有最佳的通风散热效果;

    □ 外壳下部加工有接地螺栓,方便外壳?;そ拥?;

    □ 柜顶部装有吊环,以便吊车搬运。

十、典型技术参数表 Parameters of products


型号 Type系统 额定电压 (kV)Rated Voltage of system电阻器 额定电压(kV)Rated Voltage of resistor短时 允许通流(A) Rated current短时 通流时间 (s)Current duration  标称阻值(Ω) ±10% Nominal resistance value外形尺寸 W×D×H (mm) Dimension重量 (kg) Weight
NGR-6.3/100-106.33.641001036.41300 ×1300 ×1900450
NGR-6.3/200-106.33.642001018.2500
NGR-6.3/400-106.33.64400109.09500
NGR-6.3/600-106.33.64600106.06500
NGR-6.3/1000-106.33.641000103.64500
NGR-10/100-10105.771001057.7500
NGR-10/200-10105.772001028.9550
NGR-10/400-10105.774001014.4550
NGR-10/600-10105.77600109.62550
NGR-10/1000-10105.771000105.77550
NGR-20/600-102011.54001028.91700 ×1700 ×26001250
NGR-20/600-102011.56001019.21250
NGR-35/200-103520.2200101013000 ×1700 ×26002000
NGR-35/400-103520.24001050.52000
NGR-35/600-103520.26001033.72000
NGR-35/1000-103520.210001020.22000
NGR-35/1300-103520.213001015.53000 ×1700 ×31002500
NGR-35/2000-103520.220001010.12500

注:上表所列是比较常用的典型规格参数,SUN-NGR系列中性点接地电阻装置可全方位满足客户需求。
Notes:The resistors listed in above table are several typical resistor devices ,Various type of resistors can be provided according customer’s requirement.

十一、组合式中性点接地电阻装置 Combined neutral grounding resisters device


    组合式中性点接地电阻装置集电阻柜、接地变于一个柜内,中性点接地电阻选用优质不锈钢合金接地电阻元件,接地变压器则选用DKSC系列低损耗、抗短路冲击能力强的环氧树脂浇铸干式接地变压器,并可根据客户需求装设零序电流互流器、隔离开关。

    产品优点明显,结构紧凑、节约占地面积,布置方式灵活、不受场地限制,安装方便。特别适用于旧站改造和城市市区新建变电站。

    Combined neutral grounding resistor devices are developed by ourselves,and we are the first company to manufacture in china.Both the resistor elements and transformer are in one enclosure.Resister elements are imported and the grounding transformer are manufactured in china,which has low loss、high withstand ability of short circuit surge. We can also supply zero sequence current transformer and disconnector according to customer′s requirement

    Obvious advantages:Compacting in structure、saving site area、convenient to layout and installation,it′s specially suitable to reconstruct old substation and to build new power stations in the urban.

十二、发电机中性点接地电阻装置 Neutral grounding resistor for generators


    主要作用Primary functions

    □ 限制故障接地电流,防止发电机铁芯烧损;

    □ 限制暂态过电压在2.5倍额定相电压以下;

    □ 抑制谐振过电压;

    □ 限制单相接地故障电流不超过(10~15)A;

    □ 提高发电机接地?;さ牧槊舳?,使?;づ渲酶奖?。

    Limit grounding fault current,prevent from burn of iron core of generators;

    Limit transient over-voltage within 2.5p.u.

    Suppress resonance over-voltage;

    Limit signal phase fault current within 10-15A;

    Improve the sensitivity of generator grounding protection,making protection configuration more convenient.

十三、适用范围 Application


    适用于发电机、变压器单元接线的大型(200MW及以上)发电机组。

    Applicable to large-scale generator(above 200MW)of generator-transformer unit.

    常用接线方式Mode of connection

    A、发电机中性点经一单相变压器高压绕组接地,小阻值的接地电阻接在单相变压器的二次侧;

    B、发电机中性点直接经高电阻接地。

    A.The generator is grounded through a signal phase transformer, a low resister element is connected to the secondary side of the transtormer.

    B.The generator is directly grounded through high resister device.

十四、智能型中性点接地电阻装置在线监测系统Realize the real time monitoring of operation parameter of neutral grounding resistor fill in the gaps in the field of monitoring of substation automation


    随着城市化进程的加快及电力系统的电缆线下地改造工程的提速,城市电网电缆化程度越来越高,电阻的应用正越来越广泛。但电阻柜在运行过程中因故障瞬间电流值和温度的变化非常大。传统中性点接地电阻装置均没有采用任何监测设备对电阻柜的实时运行参数进行监测,日新电气特别推出了可以监测中性点接地电阻装置运行参数、特别是系统单相接地故障瞬间电流和温度变化的智能型中性点接地电阻装置,及与之配套使用的在线监测系统,填补了中性点接地电阻装置在配电系统运行的监测盲点,提高了系统运行的安全可靠性,同时满足了现今变电站对于无人值守的发展要求。

    With the quick development of city power distribution network,the power cable is used more and more in the distribution system。 The neutral grounding resistor are widely used in power distribution system。The current and temperature on resistor rises suddenly during grounding fault。When there is intermittent arcing grounding fault ,the fault current will accumulate。there is no monitoring devices to monitor the current and temperature in conventional neutral grounding resistor equipment。The neutral grounding resistor monitoring device is designed specially for fill this gap。This device will prolong the operation life for neutral grounding resistor and improve the reliable of  power distribution system。It will also meet the requirement of development of unattended substation。

   在线监测系统的功能特点Function of SUN-NGR-JCX

    SUN-NGR-JCX在线监测系统集数据采集、控制、告警、通讯功能于一体,在系统正常运行时可监视中性点不平衡电流、电阻片的温度(最高温度可达到1000℃);单相接地故障时,可记录电阻电流大小、接地时间、电阻片的温度变化和接地动作次数并带RS485通讯接口,以MODBUS规约将检测、记录的信息传递至主控室或微机单元,实现远程监控。

    SUN-NGR-JCX integrates the functions of data acquisition、control、alarm and communication。Strong data acquisition and processing function:temperature and current measurement;variation of current and temperature in the moment of fault。

    Communication function:makes communication with computer control and monitoring system by standard RS485 communication interface and provides MODBUS  high safety ,good reliability。

十五、产品安装 Resistor Installation


    使用叉车将设备运抵安装现场,取下固定垫木的螺栓,

    小心开箱取出设备,拆包装时应防止损坏外壳或顶部安装的套管,建议在拆除包装箱时,包装材料和包装箱的底座不拆,这样可以防止在搬运中造成损坏;

    使用叉车时应注意使叉车对准底壳的角钢处,以免损坏底网;

    如果场地空间较小可采用吊车吊到安装点,电阻柜顶部设有吊装螺栓;如果设备较大且配电室门较小,在订货时可订购可拆卸式,但应在购销合同中说明;

    本产品安装地点可以是户内也可以是户外,可安装于专用基础、混凝土台或变压器的附近的支撑台上,也可直接安装在变压器的顶部;电阻柜应水平安放,这样可以保证电阻防水进入、足够通风及防止绝缘子不必要的损坏;

    通过柜底四脚的螺栓孔(Ф16mm)用地脚螺栓固定在基础上,若安装于混凝土基础上,建议采用膨胀螺栓来固定;

    电阻元件接地端通过单芯电缆与接地网连接接地,电缆的一端自下而上经柜底电缆孔接入电阻柜,做好电缆头,与电阻元件接地端或零序电流互感器输出端可靠连接,电缆在穿孔处要用电缆护圈(已备有)?;?,并加以封赌。电阻柜的进线端用单芯电缆或铜排与接地变或变压器的中性点引出端子可靠连接;

    电阻接地一般用铜排或电缆与公共接地网可靠牢固连接,铜排或电缆的规格根据实际情况确定;

    电流互感器二次输出采用控制电缆接入设计指定间隔的零序?;ず筒饬勘砑?;

    检查、紧固柜内所有固定及连接螺栓,保证固定牢固,连接可靠;

    ◎ Deliver the equipment to field by forklift ,remove screw of fixed cushion chock ,unpack and take the equipment out , When unpack, be sure to avoid any damage on cabinet and bushing .A way to prevent damage during the transiting is to keep the base of packing material and package in unpacking ;

    ◎ In using the forklift, make sure that the forklift directs against angle steel of bottom shell, so as to avoid bottom net damage;

    ◎ In case that the space  is limited ,use crane to lift the resistor to the installation site since the lifting ring is available on top of the resistor ;In case that the equipment is bigger than the door of  electric power distribution room, order disassembly type and specify in sales contract clearly;

    ◎ The installation location of resistor can be both indoor and outdoor ,it can be installed either on special base, concrete platform and stand-off platform near transformer ,or on top of the transformer directly; the resistor should be placed horizontally, so as to be ventilated and protected against water and unnecessary damage of insulator;

    ◎ Fix the resistor to the base with ground bolt through the bolt hole ( |μ16mm) on bottom of the resistor .To install the resistor on platform of the concrete base ,plug-screw is recommended;

    ◎ The grounding end of resistor component connects with grounding point of power grounding net through single core cable. Lead one end of cable to connect with grounding end of the resistor component or exit terminal of zero sequence current transformer through the cable hole is on bottom of the resistor and the cable hole in it should be protected by protection ring which is already available there. Then seal the cable hole. At the coming end of the resistor ,use single core cable or copper bar to connect with neutral terminal of transformer or grounding transformer;

    ◎ Generally, the resistor is connected with common grounding net by copper bar or cable ,the specification of copper bar and cable depends on the specific case . The connection should be reliable and steady;

    ◎ Secondary outgoing of  current transformer to be connected to designed relevant bay on control system for zero sequence protection and meters through control cable;

    ◎ Check and fasten all fastening and connecting screws inside the cabinet, so as to ensure sound fastening and reliable connection ;

    ◎ Remove the 2 fastening bolts of each resistor component, please refer to figure 5;

    ◎ The cabinet should be grounded reliably through grounding bolt to protect staff against injury.

十六、检查试验 Inspection and Test


    当设备可靠就位后,打开带铭牌的前面板,检查柜内设备和接线情况,并注意以下事项:

    ●带电前所有包装材料必须从箱内取出,以避免发生火灾;

    ●仔细检查绝缘子、套管等有否破损,若发现破损件,应立即与运输商联系;

    ●检查所有电气连接,确认连接牢固可靠;

    ●所有固定螺栓是否全部紧固;

    ●投运前试验、测量电阻元件的阻值、测量绝缘电阻、按规定标准进行工频耐压试验。试验电压不大于出厂试验电压值的85%;

    ●还原装好柜体前板,标准投运。

    After the placing the equipment ok,open the front plonte that is with nameplate to check the status of internal equipment and connection,as well as give notice to the following items:

    ◎All packing material should be removed from the box before power on in case there is fire;

    ◎Inpect whether the insulator and bushing are in good condition or not ,if the damage is found,contact forwarder at once;

    ◎Check all the electric connection to guarantee the connection is secure;

    ◎Check whether all fastening screws are tighten;

    ◎Measure the resistance value and insulation resistance, test the power  frequency withstand voltage in accordance with the criterion. The testing voltage cannot exceed 85% of the factory tested voltage;

    ◎Close the front plate and get ready for operation.

十七、产品维护 Maintenance


    ●接地电阻柜属高可靠性设备,不需额外维护,建议利用站内主变或母线停电检修的机会进行检查维护,检查维护时必须严格执行安全操作规程和安全工作规范;

    ●将电阻柜从系统上断开;

    ●取下前面板,直接查看箱内有无异常;

    ●进行清洁处理;

    ●检查有无破损的绝缘子和套管,用摇表确认瓷套绝缘性;

    ●检查电阻元件的完好性,测出电阻值,其值应在10%误差以内;

    ●检查内部连接是否可靠;

    ●检查螺栓的紧固程度;

    ●对于雷电、风暴、地震、过载等可能会造成电阻元件损坏的特殊情况,建议工作人员及时做相应的检查;

    ●需要备件和协助时,请与我公司的售后服务处联系。我司将尽快(省内24小时、省外48小时)派员到现场服务。

    ◎Grounding resistor obtains high reliability and the special maintenance is not required.lt is sug-gested implement maintenance while the main transformer or bus on the power station is power off to overhaul.The maintenance should strictly comply with security operation regulation and security operation criterion;

    ◎Disconnect resistor from the system;

    ◎Remove the front plate to check status inside;

    ◎Clean;

    ◎Check whether there is damaged insulator or bushing,check the insulation performance of the porcelain bushing by megameter;

    ◎Check integrity of the resistor component,measure the resistor value and make sure that the deviation is controlled within 10%;

    ◎Check the internal connection reliability;

    ◎Check the fastening status of screw;

    ◎In case of thunder ,storm,earthquake,overload that may cause damage to the components of resistor,staff should do corresponding inspection on the equipment.

    ◎In case you need spare parts and assistance,please contact us,We provides on-site service in the shortest time(24 hours in Zhejiang,48 hours for other cities of China).

十八、包装、运输及贮存 Packing,Transportation,Storage


    ●本产品装箱时应按正常位置放置于枕木上,并用螺栓紧固;

    ●柜体罩上发泡塑料,以防止运输或存储过程中灰尘或水汽侵入;

    ●建议采用原包装将设备运抵安装现场,以防止在运输中可能出现的损坏;

    ●为防止运输过程中电阻松动,专门以紧固带加以固定;

    ●用板条钉箱;

    ●在电阻柜包装箱上清楚地标明交货地点,设备名称和运输重量等;

    ●所有包装箱均可用叉车装入通用货柜中;

    ●货到后,应用叉车或吊车卸货;

    ●卸货前应加以检查,以确定运输过程中货物安全无损。

    ◎The package should be placed on sleeper by normal position and fastened by bolt;

    ◎The cabinet should be covered with foam to be protected against dust and vapor during the transportation;

    ◎Keep the equipment in its original package when deliver to installation field,so as to prevent it from possible damage during the transportation;

    ◎Fix it with fastener to prevent it from resistor looseness during the transportation;

    ◎Seal the box with lath;

    ◎Indicate delivery place, equipment name,weight etc on the packing box clearly;

    ◎All the boxes can be lifted to the common container by forklift;

    ◎Unload the goods with forklift or crane after its arrival;

    ◎Inspect the goods after unloading to make sure that the goods is in good condition.

十九、随机附件 Annex


    包装时随机附件均放在包装箱内,详见装箱清单。

    All annex are enclosed in the package,please refer to packing list.

二十、订货须知 Ordering information


    客户订购中性点接地电阻装置时,请提供与产品有关的下列资料:

    a、系统额定电压:Ue/U(kV);

    b、短时允许电流:(A);

    c、标称电阻值:(Ω);

    d、允许通流时间:(S);

    e、接地变容量:(kVA)(或短时允许电流:A);

    f、外壳形式:户内型或户外型;

    g、外壳颜色:客户可选,如用户无要求,则采用电器灰;

    h、进出线方式:上进下出、下进下出、侧进侧出、侧进下出,客户可??;

    i、柜内是否装隔离开关及零序CT,CT变比及容量;

    j、客户有其它要求可在订货时面谈或提供书面要求。

    In the orders, please give following information:

    a、System rated voltage: Ue (kV);

    b、Rated current for short-time: (A);

    c、Rated resistor value: (Ω);

    d、Rated current duration: (S);

    e、Capacity of Grounding transformer;

    f、Type of enclosure: indoor or outdoor;

    g、Color of enclosure: optional or gray(standard);

    h、Type of incoming and outing: top in bottom ort, bottom in bottom out, side in side out, side in bottom out, and optional;

    i、Zero sequence current transformer: optional; Special requirements should be listed in the orders.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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