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1、油浸式电流互感器简介Brief introduction to Oil-immersed Current Transformer 本产品符合国家标准GB1208-2006电流互感器和国际电工委员会标准IEC 60044-1： 2003互感器第1部分：电流互感器的要求，主要供35kV、110kV、 220 kV，50Hz电力系统作电流、电能测量和计量及继电保护用。The products comply with the requirements of GB1208-2006 “Current Transformer” and International Electro technical Com
2、mission IEC 60044-1 : 2003 “Instrument Transformers Part-1 Current Transformers”. It is mainly used for current and electric energy measurement and relay protection for 35kV , 110kV and 220kV, 50Hz power system.产品安装地点的环境温度为-30C+40C,海拔不超过1000m,高原型产品 海拔不超过3500m。普通型产品适用于一般地区，耐污型产品适用于II、III、W 级污秽地区，组合型产
3、品专与隔离开关配套成组合电器。Environmental temperature of its assembly place is -30C+40C, altitude above sea level shall not exceed 1000m, Altitude for plateau type product shall not exceed 3500m. Common product apply to common place, Anti-pollution products can apply to II、III、IV pollution area, Composite type p
4、roducts form composite electrical apparatus specialty combining with isolating switch.产品型号表示方法及字母意义：Way of showing the type of product and meaning of letters:持殊要求（字母组合）Special requ - remenls（combinaton of lctiers）电压等级（數字）Voltage elassXumberi设计序号（数字）Design Series Number（Numbcri产甜型号(字母组合)Type of prod
5、bi nation of letters）产品型号：L电流互感器，V倒立式，B有保护级，T具有暂态特性, C瓷绝缘，W户外型，A结构型式为“链”型，N油保护方式不带金属膨 胀器。特殊要求：TA适用于干热地区；TH适用于湿热地区；GY适用于高原 地区；ZH与隔离开关配套；W1适用于II级污秽地区；W2适用于III级污 秽地区；W3适用于V级污秽地区。说明：(1)以下所列技术参数仅供设计或选用时参考，可随用户的要求不断改进，各种产品的主要技术参数以产品的铭牌为准(2)我厂产品型号按新标准要求，经批准注册，原 LCWB-110，LCWB-220 型分别改型为 LB7-110，LB9-220 型，并重
6、新通过了国家电力公司和国家机械工 业局联合组织的批量生产鉴定。Type of product: LCurrent Transformer, VInverted type, BWith Protective Class, T Transient performance, C一Porcelain insulation, W一Outdoor type. A一the structure is with chain type, N Oil protection without metal expander.Special requirements: TAApply to dry and hot area
7、, TH Apply to humid and hot area, GY Apply to plateau area, ZH一combining with isolating switch, W1Apply to class II pollution area, W2Apply to class III pollution area, W3一Apply to class IV pollution area.Note：(1) The following listed technical parameters are only for reference when design and selec
8、tion. It can be improved as required by customers. All kinds of main technical parameters are based on nameplate of product.(2) Product type of our factory comply with the new standard, upon approval and registration, former LCWB-110, LCWB-220 are changed into LB7-110, LB9220, and the products has p
9、assed again batch production. Appraisal organized by National Power Company and National Mechanical Industry Bureau.LCWB-35W 和 LABN-35W 型电流互感器由器身、金属膨胀器、瓷套、底座 等组成,系全密封结构。器身呈“8”字形,上半部分为一次绕组,下半部为二 次绕组。Current transformer with type of LCWB-35W and LABN-35W is composed by body, metal expander, porcelain
10、shell, base and so on, the products are full-sealed structure. Its structure appears like the number “8”. The upper part is primary winding, the lower part is secondary winding.LVB-35W和LVBT-35W型电流互感器采用油纸倒立式全密封结构。主要由 躯壳、底座、瓷套、金属膨胀器、器身,一次导杆、一次出线装置和二次出线盒 等部分组成。器身为吊环形,主绝缘全部包在二次绕组上,一次、二次绕组均置 于产品的头部,产品内充变
11、压器油,膨胀器装在躯壳上部起全密封和油温变化时 体积补偿作用。该型产品是一种低漏磁电流互感器,没有返回导体电流产生的磁 场对二次绕组的干扰,这样提高了二次绕组的保护、测量和计量的准确度。该型 产品的介质损耗因数小、局部放电量低；该型产品的额定一次电流可达数千安, 可保证足够大的动热稳定电流；该型产品可以任意组合二次绕组,带负载能力强, 可带多种变比抽头,从而实现各种规格的测量和保护的需要；可以按用户要求带 TPY 绕组,从而满足用户快速继电保护的要求。Current transformer with the type of LVB-35W and LVBT-35W is with oil-pa
12、per inverted full-sealed structure. It is consist of shell, base, porcelain bushing, metal expander, body, primary pole, primary terminal device and secondary terminal box and so on. Body is ring shaped, main insulation is wound round the secondary winding, primary winding and secondary winding are
13、on the top of the products, the products are full with oil transformer, expandar is fixed on the top of the body shell working as volume compensation and full-sealing when oil temperature changes. The CT is with low leaking-magnetization, and without interference caused by magnetic field which is wi
14、thout returning-conductor current to secondary winding, therefore, protection accuracy and measurement accuracy and calculation accuracy of secondary winding are improved. This CT is with low dielectric loss and low partial discharge. Its rated primary current is up to several kilo amperes, adequate
15、 dynamic current is guaranteed. its secondary winding can be combined at random. And it is with strong load and with taps with several ratios so that the product can reach the requirements of measurement and protection. TPY winding can be provided according to consumer requirements, therefore, the c
16、onsumers can quickly reach the requirements of relay.LB7-110W和LB9-220W型电流互感器产品由油箱、瓷套、金属膨胀器、器 身、一次出线装置和二次出线盒等部分组成，属全密封结构。器身包括一次绕组 和二次绕组，经真空干燥和浸渍处理后，浸于变压器油中，变压器油经真空过滤， 作充分的脱水、脱气处理。整个产品绝缘电气强度高，且介质损耗和局部放电量 低。一次绕组成“U”形，为电容型油纸绝缘结构。一次绕组分成两段，四个出 头通过一次出线装置在瓷套上部侧壁引出，可方便地在外部进行串并联换接，以 改变电流比，二次绕组在环形铁心上，可以带中间抽头。CT with the type of LB7-110W and LB9-220W is composed by oil tank, porcelain shell, metal e
