ABBDI620(3BHT300002R1)试验项目次序基本上是按照项目的重要性排列的。在总共32个试验项目中，有些是在变压器解体后才能进行的，有些是与其它项目同时进行或附带进行的，有些是变压器投运前或投运后的例行检查、试验项目，有些项目在特殊情况下进行，而交流耐压试验是一种破坏性试验，对试验变压器的要求很高，现场条件一般很难满足，所以是变压器绝缘水平的一种考核项目。有资料表明，同一电压等级、同样容量、同一规格的变压器，其绝缘电阻值有时会相差比较大，这并不能说明这些变压器绝缘水平有差距，而往往是因为变压器绝缘结构的设计、绝缘材料选用的不同所致。但是，对于铁芯、夹件、穿心螺栓等部件，测量绝缘电阻往往能反映故障、说明问题。这主要是因为这些部件的绝缘结构比较简单、绝缘介质单一，正常情况下基本上不承受电压，绝缘更多的是起“隔爆”作用，而不象绕组绝缘要承受高电压。实践表明，对于电容性设备，如电容型套管、电容式电压互感器、耦合器电容器等，测量tanδ和电容量Cx(实际上是根据Cx的变化量ΔCx进行判断)仍然是故障诊断的有效手段。不仅如此，tanδ和电容量Cx已经从离线测量发展到了在线监测阶段。绝缘油试验、油中含水量、油中含气量以及油中糠醛含量测量都属于油试验或油化验的范畴。而作为一种故障诊断方法，油试验似乎没有得到应有的重视。造成这种状况的原因之一在现场，在实际工作中，有时会发生这样的事情：对同一台设备取油样，高压试验班的结果与油化验班的结果有较大出入。实例：对110kV少油断路器做泄漏电流，试验时发现：泄漏电流值超标，初步判断绝缘拉杆受潮。而这时，油化验的结果也显示，油中含水量超标。最后的检查结果是，断路器顶部将军帽有砂眼，下雨时进水。油化验的结果有一定分散性，这种分散性来源于取样、送检、化验全过程。其实，油中溶解气体分析也有类似的问题，例如分析CO2的含量时，要防止油中特征气体的逸出、回溶、外界气体的侵入。因为空气中本来就含有约0.3%的CO2。总的说来，油化验在变压器故障诊断中还是有较大价值的。比如：糠醛含量的大小能够反映绝缘的老化程度；绝缘油的耐压试验能说明油质的好坏等等。1.局部放电测量和绕组变形检测导致绕组变形的原因主要有：①绕组绝缘和机械结构强度先天不足，绕制工艺粗糙，承受正常容许的短路电流冲击能力差；②变压器出口短路，出口短路形成的巨大的短路冲击电流产生的电动力使绕组扭曲、变形。变压器绕组变形检测正成为一个研究热点，同时也是一项必须突破的故障诊断技术。根据资料介绍，可以采用频谱法等来检测变压器绕组变形，但目前还没有形成相应的判断标准和规范。在现有的条件下，对变压器绕组严重变形故障的诊断可以通过变压器空载试验、短路试验及阻抗测量实现。当绕组发生变形时，变压器内部的磁路结构发生变化，空载电流及损耗、短路损耗及阻抗会发生一定的变化，通过横向相间比较、纵向历史数据比较，有可能判断。DSQC317DSQC3173HAB2220-1DSQC320DSQC3203HAB7231-1DSQC3213HAB2236-1DSQC3233HAB5956-1DSQC324DSQC3243HAB5957DSQC3243HAB5957-1DSQC325DSQC3253HAB2241-1DSQC326DSQC3273HAB7203-1DSQC3283HAB7229-1DSQC328A3HAC17970-1DSQC328A3HAC17970-1/03DSQC328A3HAC17970-1/04DSQC3313HAB7215/2-1/03DSQC3313HAB7215-1DSQC3313HAB7215-1DSQC3313HAB7215-1/04DSQC3313HAB7215-1/06DSQC3313HAB7215-1/07DSQC3313HAB7215-1/09DSQC3313HAB7218-1/04DSQC3343HAB5845-1/2DSQC335DSQC3353HAB6182-1DSQC336DSQC3363HNE00001DSQC3363HNE00001-1DSQC3363HNE00001-1/07DSQC346G3HAB8101-8DSQC346G3HAB8101-8/08BDSQC350DSQC3503HNE00025DSQC3503HNE00025-1/07DSQC3503HNE00025-1/10DSQC3503HNE00025-1/13DSQC350ADSQC351DSQC355DSQC3553HNE00554-1DSQC355A3HNE00554-1/10DSQC363DSQC369DSQC3C2DSQC504DSQC541DSQS346G3HAC1462-13HAC2424-13HAA3573-ACA/33HAC5689-13HAC14363-13HAB8101-8/08Z3HAC0001-13HAC0035-13HAC0035-43HAC0037-13HAC0048-13HAC0050-13HAC0053-13HAC0055-33HAC0081-13HAC0095-13HAC0104-13HAC0110-13HAC0127-13HAC0129-13HAC0155-13HAC0163-13HAC0181-13HAC0199-13HAC0200-13HAC020021-0013HAC020031-0013HAC020046-0013HAC020046-0033HAC020079-0013HAC020098-0013HAC020105-0013HAC020108-0013HAC020109-0013HAC020113-0013HAC020122-0013HAC020123-0013HAC020126-0013HAC020128-0013HAC020129-0033HAC020131-0013HAC020136-0043HAC020144-0013HAC020146-0013HAC020151-0013HAC020155-0013HAC020170-0013HAC020174-0013HAC020179-0013HAC020209-0013HAC020210-0013HAC020211-0013HAC020273-0013HAC020285-0013HAC020286-0023HAC020295-0013HAC020303-0013HAC020304-0013HAC020330-0013HAC020332-0033HAC020343-0013HAC020345-0013HAC020386-0013HAC020397-0013HAC020398-0013HAC020399-0013HAC020408-0013HAC020410-0013HAC020412-0013HAC020413-0013HAC020414-0013HAC020415-0013HAC020426-0023HAC020426-0063HAC020426-0083HAC020426-0093HAC020428-0023HAC020428-0063HAC020428-0083HAC020428-0093HAC020429-0023HAC020429-0063HAC020429-0083HAC020429-0093HAC020434-0013HAC020435-0013HAC020436-0013HAC020447-0013HAC020464-0013HAC020466-0013HAC020486-0013HAC020487-0013HAC020500-0013HAC020505-0033HAC020507-0013HAC020529-0023HAC020529-0083HAC020533-0023HAC020537-0013HAC020540-0013HAC020541-0013HAC020549-0013HAC020552-0023HAC020562-0013HAC020578-0013HAC020579-0013HAC020580-0013HAC020581-0013HAC020584-0013HAC020586-0013HAC020587-0013HAC020590-0013HAC020591-0013HAC020595-0013HAC020597-0013HAC020598-0013HAC020602-0013HAC020603-0013HAC020607-0013HAC020608-0013HAC020611-0013HAC020618-0013HAC020619-0013HAC020630-0013HAC020633-0013HAC020643-0013HAC020645-0013HAC020652-0013HAC020653-0013HAC020654-0013HAC020655-0013HAC020659-0013HAC020666-0013HAC020671-0033HAC020672-0013HAC020675-0013HAC020676-0013HAC020677-0013HAC020679-0013HAC020691-0013HAC020692-0013HAC020697-0203HAC020697-0213HAC020697-0223HAC0207-13HAC020716-0013HAC020729-0013HAC020730-0023HAC020738-0013HAC020738-0033HAC020738-0043HAC020738-0053HAC020738-0073HAC020745-0013HAC020750-0013HAC020753-0013HAC020759-0013HAC020766-0013HAC020771-0023HAC020781-0013HAC020783-0013HAC020784-0013HAC020785-0013HAC020786-0013HAC020790-0013HAC020799-0013HAC020800-0013HAC020801-0013HAC020806-0013HAC020813-0143HAC020813-0603HAC020813-0823HAC020813-1393HAC020813-1403HAC020813-1473HAC020813-1493HAC020813-1653HAC020817-0013HAC020823-0023HAC020841-0013HAC020843-0013HAC020847-0013HAC020849-0013HAC020855-0013HAC020869-0013HAC020885-0013HAC020886-0013HAC020890-0043HAC020890-0083HAC020890-0093HAC020890-0253HAC020890-0283HAC020890-0373HAC020890-0403HAC020890-0413HAC020890-0423HAC020890-0443HAC020890-0463HAC020890-0593HAC020890-0613HAC020890-0633HAC020890-0643HAC020890-0673HAC020890-0683HAC020890-0723HAC020890-0773HAC020890-0783HAC020890-0803HAC020892-0053HAC020898-0013HAC020900-0023HAC020902-0013HAC020909-0013HAC020912-0013HAC020914-0013HAC020925-0013HAC020929-0023HAC020929-0063HAC020929-0073HAC020932-0973HAC020932-1003HAC020938-0013HAC020938-0033HAC020938-0043HAC0209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