发布时间 : 星期六 文章主变压器试验作业指导书 Rev.00更新完毕开始阅读
CSPC Nanhai Petrochemicals Project
SEPCO Electric Power Construction Corp
《Safety work regulations of electric power construction》DL5009.1-92
2.6 ALSTOM提供的主变压器安装调试手册 Ex-factory technique documents 2.7 设备出厂试验报告Ex-factory test report
3.0 施工准备： Construction preparation
3.1 变压器已运至现场就位安装，绕组引出线与其他附件、周围搭设的脚手架等安全距
离充足。
The transformer has been delivered and located and installed on the site,
the safety distance is enough among of the lead-out wire of winding and other accessory, scaffolding built around and so on.
3.2 现场已清理干净、道路通畅。
The site has been cleaned up, and the road is unblocked.
3.3 本作业指导书及安全技术措施已编制审批完毕，对所有参加试验人员交底并签字，
交底记录齐全。
The preparation of the work instruction and safety technique measures has
been completed, and the examination and approval also has been done. All personnel attending the test have been told the real intentions and sign it up. The record is all ready.
3.4 试验仪器准备齐全，工作正常，试验人员熟悉仪器的使用方法。
The test apparatus has been prepared, and they work in gear. The test
personnel are familiar with the using way of apparatus.
3.5 施工图纸及有关技术资料齐全。
The construction drawing and relative technical information are all ready. 3.6 试验所需工具准备齐全。
Tools for test required are all ready. 3.7 试验区域拉好警戒绳，挂上明显的警示牌。
Set the warning rope in test area and hang the visible warning card. 3.8 试验用电源开关要悬挂“试验专用，严禁乱动”警示牌。
The warning card which is saying “ Special for use, don’t fiddle with it”
from the power switch used for test.
3.9 变压器注油前需测量铁芯引出套管对变压器外壳绝缘合格。
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MAIN TRANSFORMER TEST 主变压器电气试验
CSPC Nanhai Petrochemicals Project
SEPCO Electric Power Construction Corp
The insulation between lead-out thimble of iron core and transformer case
should be eligible before transformer oiling.
3.10 变压器注油完毕后应进行本体油样的绝缘强度及介损试验，试验合格且静置24小时
后方可进行绕组连同套管的介损、直流泄漏电流试验。
After filled up with oil, do the high voltage withstand and dissipation loss
test. 24 hours later, do the dissipation loss and DC leakage-current test of transformer winding after oil testing passed.
3.11 变压器低压绕组连同套管的交流耐压试验应在介损、 直流泄漏试验合格后进行。 The high voltage a.c testing of transformer winding should be done after
dissipation loss and DC leakage-current test passed.
4.0 主要施工机械和工具 Main machinery and tools ：
4.1 BM11D型数字兆欧表 Digital megohm meter 1块 One 4.2 变压器直阻测试仪 DC resistance tester 1台One
4.3 直流高压发生器 High voltage d.c tester 1台 One
4.4 绝缘油耐压机 High voltage pressure tester of oil 1台 One 4.5 介损测试仪 Dissipation loss tester 1台 One 4.6 变压器变比速测仪 Transformer ratio tester 1台 One 4.7 50kV交流耐压机 High voltage a.c tester 50kV 1台 One 4.8 指针万用表 Pointer multimeter 1块 One 4.9 甲电池 Battery 1只 One 4.10 保险丝、绝缘塑料带、导线、电源盘、警戒绳、警示牌等，常用工具一套。 Fuse, insulated plastic tape, lead, power supply unit, warning rope, warning
card and so on, a set of common tools.
4.11 接地棒 Earthing rod
5.0 试验项目 Test items
本工程需要做以下试验，试验数据通过表格SH 3503-J504, SH 3503-J513记录（后附）。将试验数据与出厂报告中的数据组进行比较分析。验收标准应该遵照厂家提供标准和国标。
The following tests shall be conducted and the test results shall be recorded
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MAIN TRANSFORMER TEST 主变压器电气试验
CSPC Nanhai Petrochemicals Project
SEPCO Electric Power Construction Corp
in the attached form (2 sheet), Form SH 3503-J504 and J513. The test results shall be compared with the test results performed at the factory. The acceptance criteria for each test shall be as per Alstom’s/GB standards.
5.1 测量铁芯引出套管对外壳的绝缘电阻；
Measuring the insulation resistance between lead-out thimble of iron core and
the earth;
5.2 测量变压器套管的绝缘电阻和介质损耗；
Measuring the insulation resistance and dissipation loss of transformer
bushing;
5.3 测量变压器绕组的绝缘电阻和吸收比；
Measuring the insulation resistance and absorption ratio of transformer
winding;
5.4 测量变压器绕组各分接位置的电压比；
Measuring the voltage ratio for each tap positio; 5.5 测量变压器绕组各分接位置的直流电阻；
Measuring the DC resistance for each tap position; 5.6 检查变压器绕组联接组别；
Inspecting the connecting group of transformer winding; 5.7 测量变压器绕组连同套管的介质损耗角正切值；
Measuring the tangent value of dielectrical loss angle for the transformer
winding along with the bushing;
5.8 测量变压器绕组连同套管的直流泄漏电流；
Measuring the DC leakage-current of the transformer winding along with the
bushing;
5.9 变压器低压侧绕组连同套管的交流耐压试验(本试验进行与否以厂家要求为准)；
Measuring the AC pressure test of the low-voltage winding along with the Bushing（Whether or not carry out the test, abide by the request of transformer manufacturer）;
5.10 绝缘油试验。Insulating oil test.
6.0 劳动力组织 Labor force ：
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MAIN TRANSFORMER TEST
主变压器电气试验
CSPC Nanhai Petrochemicals Project
SEPCO Electric Power Construction Corp
试验指挥 Test director ： 1人 One people 试验监督 Test supervisor ： 1人 One people
试验记录 Test recorder ： 1人 One people 试验操作 Test operator ： 1人 One people
7.0 施工工序和施工方法 Construction procedure and plans ：
7.1 测量铁芯接地线引出套管对变压器外壳的绝缘电阻
Measuring the insulation resistance between lead-out bushing of earth wire
for iron core and earth
7.1.1 注油前测量铁芯接地线引出套管对变压器外壳的绝缘。
Measuring the insulation between the lead-out thimble of earth wire for iron
core and transformer case before oiling.
7.1.2 解开铁芯引出套管与本体的连接，用5000V兆欧表测量其对变压器外壳的绝缘电阻，
持续时间1min，应无闪络及击穿现象。
Unfasten the connection between lead-out thimble of iron core and the
noumenon, measure the insulation resistance with 5000V megohmmeter between the thimble and the transformer case. The duration is for 1min, there should be no flashover and breakdown phenomenon.
7.2
测量变压器套管的绝缘电阻和介质损耗
Measuring the insulation resistance of transformer thimble and the dissipation loss
7.2.1 本试验在套管安装之前进行。
The test should be done before installing the thimble.
7.2.2 用5000V兆欧表测量变压器套管主绝缘的绝缘电阻，一般不低于1000 MΩ。 Measuring the resistance of main insulation for transformer thimble with 5000V
megohmmeter, generally it can’t be lower than 1000 MΩ。
7.2.3 按介损仪使用方法接好试验接线，并检查接线正确。启动仪器，均匀升压至10kV，
测量套管的介质损耗角正切值及电容值，介质损耗角正切值应不大于出厂试验值的130%。
Link the test connection according to the using method of dissipation loss meter, and
examine whether the connection is right. Start up the apparatus and increase the voltage
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MAIN TRANSFORMER TEST 主变压器电气试验