干式隔离变压器安装使用说明书-中英对照

SGC树脂浇注干式隔离变压器
SGC Resin Casting Dry Type Isolating Transformer
安装使用说明书
Installation Manual
北京电力设备总厂
BEIJING POWER EQUIPMENT GROUP OF P.R.C
1 产品概况Product description
树脂浇注干式隔离变压器是我公司在引进瑞士TUBOLY.AG、ASTRONIC.AG和意大利BP.2公司的技术、工艺和先进的设备基础上设计、制造而成，产品的技术性能及指标符合GB6450-86、GB/T10228-1997、Q／JT002－1998标准。

该产品具有节能、体积小、重量轻、阻燃、自熄、无污染、不龟裂、抗短路能力强、运行安全性高、耐冲击能力强、损耗低、噪音低、局放低和外形美观等优点。

特别是安装在空间有限、需靠近负荷中心和具有防护要求的场所，更能充分发挥其体积小、阻燃的优越性。

Resin Casting Dry Type Isolating Transformer is designed, manufactured by our company based on the introduced technical and advanced equipment from Swiss TUBOLY.AG, ASTRONIC.AG and Italy BP.2. All technical performance meets standards of GB6450-86, GB/T10228-1997 and Q/JT002-1998. The product has many advantages, such as: energy-saving, small size, light weight, fire retardant, self-extinguishing, pollution-free, and not fragmented, high anti-short circuit capacity, safety operation, high impulse voltage withstand capability and low loss, low noise, low partial discharge and good appearance and so on. When it is installed in limited space, near load center and protection required site, the advantages of small size and fire retardant could be more obvious.
2 变压器型号及使用条件Type and working conditions of transformer
2.1 产品型号Product type
SGC 1 2 ----- 3 / 4 / 5
G: 隔离变压器Isolating Transformer
C：环氧树脂浇注固体成型Epoxy resin casting solid moulding
1:B------------箔绕foil winding
无(vacant)----线绕wire winding
2:设计序号Design No.
3:额定容量Rated capacity（kVA）
4:高压额定电压High rated voltages（kV）
5:低压额定电压Low rated voltage（kV）
2.2 使用条件Working conditions
海拔Altitude above sea level：≤1000m
环境温度Ambient temperature：-30～+40℃
最高年平均温度The maximum average temperature:+20℃
相对湿度Relative humidity:95%(25℃)
超出以上正常使用条件时，可与制造厂协商
If excess the above normal working conditions, could consult with the manufacturer.
电源电压波形：近似于正弦波
Supply voltage waveform: close to sinusoidal wave
三相电源电压的对称：三相变压器所连接的电源电压应大致对称Three-phase power supply voltage symmetry: power supply voltage connected by three-phase transformer should be symmetry approximately.
安装环境：应无明显污秽
Installation environment: without obvious pollution
地震引发的地面加速度：水平方向：≤3m/S2，垂直方向：≤1.5m/S2
Seismic requirement: horizon acceleration at ground level : ≤ 3m/S2, vertically acceleration at ground level: ≤ 1.5m/S2.
3. 产品的安装Installation of product
3.1 对于无防震要求的场所，变压器可直接放置在地面，安装时应保证变压器外围离开墙体等障
碍物或两台变压器之间的距离满足安全要求，变压器有外壳时，距离可适当调整。

To the site without shockproof demand, the transformer could be placed on the ground directly, and should ensure the external of transformer away from obstructions or the distance between two transformers meet the safety requirements during installation. If the transformer has shell, the distance can be adjusted appropriately.
3.2 对于有防震要求的场所，安装变压器的地基应预埋螺栓，并与变压器底座通过螺栓螺母连
接。

To the site with shockproof demand, the foundation for installation of transformer should be embedded with bolts, and connects the transformer base with bolt nuts.
3.3 安装场所要求
Requirements of installation site
3.3.1 安装场地应清洁，通风良好。

若安装在地下室或其它空间有限的场所应具有足够的通风
量，一般每1kW损耗需要4m3/min。

The installation site should be clean and well-ventilated. If installed in the basement or other space limited places, adequate ventilation is necessary, generally need 4m3/min loss per kW.
3.3.2 通常情况下，变压器采用自然冷却，如果安装在封闭的空间，其防护外壳的上、下部位
应有通风口与外界相通，通风口的净面积应符合下表的规定。

Normally, transformer is natural cooling. If installed in a closed space, there should be vent on the upper and bottom of the protective casing connecting to the outside, and the net area of the vent should be consistent with the provisions under
容量
≤315 400～630 800～1250 1600～2500 Capacity（kVA）
通风口面积
0.5 0.8 1.2 2.0
Area of vent（m2）
3.3.3 容量大于630kVA的变压器,建议采用温控风冷系统。

To the transformer with capacity more than 630kVA, we recommend to adopt temperature control air-cooled system.
3.3.4 变压器放置在地面、基础、或槽钢上时，场所地面不平度应小于5mm，若安装后外壳的
门发生变形应调整落地四角高度。

When transformer placed on the ground, foundation or slotted iron, the roughness of ground should be guaranteed less than 5 mm. If the door of shell is distorted after installation, the height of foursquare falling to the ground should be adjusted.
3.4 产品装有外壳时，先用螺栓将外壳面板（2件）与地脚螺孔连接，再把侧板（2件）与面
板连接。

此后，调整吊杆高度（目的是在安装顶盖后，顶盖无凸起或凹陷），将顶盖与侧板连接，最后，安装吊环。

If the product equipped with shell, should firstly connect the shell panels (2 pieces) to the tail holes with bolts, then connect the sideboard (2 pieces) to the panels.
Since then, adjust the boom height (for the purpose of after installing the roof, there is no uplift or depression), and connect the proof to sideboards. Finally, install the lifting rings.
4 产品运输Transportation of products
4.1 运输装卸过程中，产品倾斜角≤300。

During transportation and unloading, the tilt angle of product should be≤300.
4.2 起吊时如有包装箱，钢丝绳应挂在包装箱底座的下垫木上；如无包装箱或从包装箱中吊出
时，应使用变压器上夹件的吊板，起吊钢丝绳的夹角≤600；带外壳的变压器吊装环应与变压器本体连接，严禁使用外壳吊环。

If have packing box when lifting, the steel rope should hang on the bottom stow-wood of the base of packing box. If no packing box or lifting from packing box, should use hanger plate of transformer clip, and the included angle of the lifting steel rope should ≤600. The lifting ring of the transformer with out shell should connect with the transformer body, do not use the hanger plate of the shell.
4.3 产品在运输过程中如遇风、雪天气，应采取措施避免雨雪浸入。

If there is wind, rain and snow during transportation, should take some actions to avoid rain and snow falling in.
5 技术参数Technical parameters
5.1 外形尺寸见外形图 Please see the dimension in figure drawing.
5.2 技术参数Technical parameters
标准Standards：GB6450-86，GB/T10228-1997，IEC726
容量Capacity：30－2500kVA
电压等级Voltage rating：35kV及以下
相数Phase number：三相或单相: three-phase or single-phase
频率Frequency：50Hz或60Hz
分接范围Tapping range：±5％、±2X2.5％
联结组别Connection group：D，yn11；Y，yn0
绝缘耐热等级：F级，绕组平均温升限值100K
Insulation thermal class: class F, limit of winding average temperature rise 100K 绝缘水平Insulation level：
0.4kV，AC3kV
10kV，AC35kV；LI75kV
20kV，AC50kV；LI125kV
35kV，AC70kV；LI170kV
冷却方式Cooling style：空气自冷（AN）；强迫风冷（AF）
调压方式Regulating way：无载调压或有载调压 unloading regulating or loading
regulating
防护等级Protective class：IP00、IP20、IP23
阻抗电压、空载损耗、负载损耗按相应的国家标准Impedance voltage, unloading loss and loading loss are complied with related national standards.
6 产品验收Product check and acceptance
6.1 检查出厂文件是否齐全。

Check whether the outgoing documents are complete.
6.2 检查包装箱内零部件与装箱单是否相符。

Check whether the parts in packing box are complied with packing list.
6.3 检查铭牌数据是否与订货合同相符。

Check whether the data on rating plate are complied with the ordering contract.
6.4 检查产品运输过程中有无损伤；绝缘件、紧固件是否松动；是否有脏物、异物进入变压器
内。

产品检验完毕，若不直接投运，应重新包装好，并放置在户内干燥通风处。

Check whether there is any damage during transportation; whether the insulation parts, fastening piece are loose; whether there is any dunghill or foreign object in the transformer body. After finishing check, if not operate at once, should pack again, and place in indoor ventilation dry environment.
7 运行前的检查和试验Inspections and test before operation
7.1 运行前应做如下检查：
Should make such inspections below before operation:
7.1.1 检查所有紧固件、连接件是否松动并重新紧固一次。

Check all the fastening parts, connection parts to make sure whether there is any loose, and fasten them again.
7.1.2 检查运输时拆卸的零件是否安装妥当，并检查变压器是否有异物存在。

Check whether the disassembled parts during transportation install well, and whether there is any foreign object.
7.1.3 检查风机、温控仪和辅助器件是否正常运行。

Check whether the fan, temperature controller and assistant parts operate well.
7.1.4 检查铁心和箱体是否已经做永久性接地。

Check whether the iron core and case body connect to earth permanently.
7.1.5 带外壳的变压器，若吊装杆与低压出线距离小于40mm，吊装就位后应将吊装杆拆去并将
顶部吊装孔封严。

To the transformer with out shell, if the distance between hoisting lever and outgoing terminal of low voltage is less than 40mm, should remove the hoisting lever and seal the top hole of it after the hoisting lever positioning well.
7.2 运行前应做如下试验:
Tests before operation:
7.2.1 绕组直流电阻测试
Winding DC resistance test
7.2.2 检查铁心绝缘是否良好
Check whether the iron core insulation is well or not.
7.2.3 绝缘电阻测试
Insulation resistance test
7.2.3.1 线圈绝缘电阻的测试
Insulation resistance test of coil
电压等级Voltage rating
（kV）
线圈绝缘电阻Insulation resistance
（MΩ）
0.4 ≥50
6 ≥200
10 ≥300
35 ≥1000
7.2.3.2 铁心绝缘电阻测试
Insulation resistance test of iron core
拆除铁心接地片后对地的绝缘电阻≥5 MΩ，在接地片侧用2500V兆欧表或高阻计测量（测试温度10～40℃，相对湿度≤85％）。

The insulation resistance after removing the earthing strip of iron core should ≥5 MΩ, measuring with 2500V megohm meter or megger（test temperature 10～40℃，relative humidity ≤85％）in earthing strip side.
在比较干燥的环境下，绝缘电阻值很容易达到，如果环境比较潮湿，绝缘电阻值会有所下降，如果每1000V额定电压其绝缘电阻值不小于2 MΩ（25℃，1min）既能满足运行要求。

如果有凝露现象，在进行耐压试验前应进行干燥处理。

In dry environment, it is easy to reach the insulation resistance value; while if the environment is a bit wet, the insulation resistance value would be lower.
It could meet the operating requirements if the insulation resistance value is no less than 2 MΩ（25℃，1min）per 1000V rated voltage. If have any ice, should take some action to dry it before withstand test.
7.2.4 外施工频耐压试验，试验电压为出厂试验电压的85％。

The test voltage of power frequency withstand test applied outside should be 85% of outgoing test voltage.
7.2.5 有载调压变压器根据有载调压分接开关使用说明书做投入运行前的检查和试验。

To the loading regulating transformer, should check and test according to the instruction manual of loading regulating tap switch before putting into operation.
8 变压器投入运行Transformer putting into operation
8.1 调整调压分接片
Adjust voltage-regulating tap changer
8.1.1 无载调压变压器Unloading voltage-regulating transformer
变压器出厂时，一般调压分接片在额定档，当用户需要调整调压分接片的位置时，可以按照铭牌上的高压绕组分接位置进行操作，调整应在断电时进行。

When the transformer is finished and waiting for outgoing, generally, the regulating tap changer locates in rated position. When clients need adjust the position of regulating tap changer, could operate according to the high-voltage winding tap position on the rating plate, and should cut the power when adjust.
调整时应注意Also should note the follows when adjust:
a 按照国家标准规定的分接范围，主要有±5％和±2X2.5％二种
According to the national standards, the tapping scope mainly has two kinds: ±5％ and ±2X2.5％.
b 调整接线片时应将三相调整到同一档位
Should adjust three-phase to the same position when regulate lug plates.
c 接线片应是出厂所带的专用接线片，不可用其它替代物
The lug plates should be the special ones from the manufacturer, cannot be replaced by others.
d 接线片的连接应紧固
The connection of lug plates should be tightened.
8.1.2 有载调压变压器Loading voltage-regulating transformer
参见有载调压使用说明书。

See also in loading voltage-regulating instruction manual.
8.2 温控设备Temperature control equipment
温控设备的使用参见温控使用说明书。

The utilization of temperature control equipment, please see in temperature control instruction manual.
8.3 初次投入运行的变压器应按GBJ148－90的要求进行5次额定电压下的空载冲击合闸试验。

To the transformer operates for the first time, should carry out five times unloading impulse switching test under rated voltage according to the requirements of GBJ148-90.
8.4 变压器投入运行后，负荷宜由小到大至额定值，检查变压器有无异常声响。

After the transformer is put into operating, should adjust the load from small to large till the rated value, to check whether there’s any abnormal noise.
8.5 退出运行后，一般不需其它措施，即可重新投入运行；如变压器在高湿度情况下发生凝露
现象，应经过干燥处理后再重新投入运行。

Generally, it could operate again after stopping without any other actions; if there is any ice in high humidity environment, should dry it firstly and then put into operating again.
9 变压器的维护Maintenance of transformer
9.1 通常情况下，在干燥清洁的场所，每年进行一次检查；其它场所，例如有灰尘或化学烟雾
的空气，应每3～6个月进行一次检查，必要时采取相应措施进行处理。

Generally, in dry and clean sites, check it every year; while in other sites, such as the air with dust or chemical fog, should check every 3~6 months, and if necessary, should take actions to deal with.
9.2 检查项目Check items
9.2.1 清除线圈内部、外部和端面积尘。

Clear the dust inner, outer and on the surface of coil.
9.2.2 清除绝缘子裙边内积尘。

Clear the dust inner the skirt of insulators.
9.2.3 清除线圈冷却风道内部积尘。

Clear the dust in the cooling vent of coil.
9.2.4 清除铁心表面积尘。

Clear the dust on the surface of iron core.
9.2.5 清除绝缘表面爬电痕迹和碳化现象。

Clear the creepage trace and carbonization phenomenon on the insulation surface.
9.2.6 清除导电部件或其它零部件的锈蚀痕迹，紧固松动的连接件和紧固件。

Clear the rust trace of conduction parts or other parts, and tighten the loose connection parts and fastening parts.
10 安全及注意事项Safety and matters need attention
10.1 维护或检修时应断电。

Should cut the power during maintenance or overhaul.
10.2 对于无外壳变压器应在其周围设置隔离围栏。

To the transformer without shell, should set isolation fences around it.
10.3 运行中的变压器，禁止触摸其本体。

Not touch the transformer body when it is operating.
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