前锋

Thank you for choosing the dry-type transformer produced by our company.

您选用了低噪音、低损耗、过载能力强、机械强度高、电气性能可靠的干式变压器产品。

为使您能够有效、可靠地使用本产品，请按照本手册内容安装、检查和维护本产品。

目录

产品概述

工作环境

主要技术参数：

型号说明

产品系统说明

产品包装运输

Inspection and acceptance

安装前目视检查

Inspection test before putting into operation

网络运营

养护你的厨具

安全事项

1.产品概述

SCB series resin-insulated dry-type power transformers have the advantages of safety, reliability, energy saving and easy maintenance. Considering economical safety and environmental applicability, this series of transformers have wide application prospects. The product design is advanced, the process is strict, and the test is perfect. The high-voltage winding adopts high-quality conductors,and excellent insulating material made by vacuum casting and curing. The low-voltage winding is wound with high-quality foil material, and the iron core is made of high- quality high-permeability cold-rolled silicon steel sheet, which is made with excellent technology. Therefore, the product has high mechanical strength and electrical strength, and has very good heat dissipation performance, the product has small partial discharge, high reliability, long operating life, no moisture absorption, flame retardant, explosion-proof, no pollution, low loss, Light weight, automatic temperature control saves installation space, maintenance costs, and electricity. It can penetrate into the load center and is suitable for urban construction, high-rise buildings, commercial centers, residential quarters, entertainment and sports centers, hospitals, tourist buildings, airports, ports, railway stations, subways, highway tunnel civil air defense facilities, petrochemical enterprises, electro-chemical enterprises, food industry, sewage purification, offshore oil platforms, mines and other places.

2。 工作环境

2.1 安装地点海拔不超过1000m，环境温度不高于40℃（超过此要求可特殊定制）。

2.2 使用环境：相对湿度100%，环境温度：+40℃至-5℃（-5℃适用于室内变压器）。

2.3   This product is generally an indoor type. The installation site should be clean,

free of foreign matter, dust, and corrosive gas, and has good ventilation conditions. If it is installed in a basement or other poorly ventilated places, the problem of forced ventilation should be considered. The loss of this product per IKW ( No-load loss + load loss) about 3-4 m3/min of ventilation.

2.4   When the product is installed, the casing should generally be 800mm away

from the wall and other obstacles, and there should be a distance of 300mm

between adjacent transformer casings.

2.5   Under normal circumstances, the transformer can be directly placed on the site of use, and can be put into operation after installation and inspection. For situations with anti-vibration and other special requirements, the foundation on which the transformer is installed should be embedded with bolts, and the transformer should be fixed by bolts and nuts.

 

3.主要技术参数

3.1   Rated frequency: 50Hz

3.2   Cooling method: AN (AF) or according to user requirements

3.3外壳防护等级：IP20或根据用户要求。

3.4 连接组标签：Dyn11或根据用户要求。

3.5 变压器相序：从左到右面向变压器高压侧，高压侧为ABC，低压侧为a(o)bc。

3.6 绕组绝缘等级：F级或根据用户要求。

3.7   Insulation level

The power frequency withstand voltage of 10kV grade products is 35kV, and the impulse withstand voltage is 75kV. The power frequency withstand voltage of 20kV class products is 50kV, the impulse withstand voltage is 125kV, and the power frequency withstand voltage of 30kV class products is 70kV, and the impulse withstand voltage is 170kV.

3.8   Temperature rise limit:

Insulation system temperature (C): 155. Maximum temperature rise (k): 100.

 

4.型号说明

5. Product system description

5.1 温度显示和温度控制系统

本产品可根据用户要求配备温度显示控温系统，其功能为：

(1)变压器运行时检测线圈温度，并显示

自动。

(2)设置风机启动，当盘管温度达到80℃时启动风机（默认值，可调）。

(3)超温报警，当线圈温度达到130℃（默认值，可调）时，发出报警信号。

(4) 过温跳闸，当线路环境温度超过

150 °C (default value, adjustable), the trip signal is output.

(5)当超过信号温度计的设定限值时，风扇可

启停，可切断电源，保护变压器。

 

 

 

 

5.2 冷却系统冷却方式为自冷（AN）。 自冷时，输出容量为100%，强制风冷（AF）时允许短时过载。

5.3   Degree of protectionWhen the transformer is not equipped with a casing, the protection grade is IP00 for indoor use; if the user needs it, it can be equipped with a casing, that is, IP20 or IP30 or IP40 (when the transformer protection grade is high, the transformer should be considered for derating operation).

注：IP20外壳可防止大于12mm的固体异物进入，为带电部分提供安全屏障。 IP30的保护壳可以防止大于2.5mm的异物进入。 1P40外壳可以防止大于1mm的异物进入。

 

6. Product packaging and transportation

6.1   The products are divided into two types: open type (without protective cover) and protective type (with protective cover), which are usually transported by railway, waterway and highway. Switches, thermostats, air- cooling devices, external protective devices, etc. need to be packaged separately) or packaged as a whole for transportation. Cranes, winches or other corresponding transportation machinery can be used to lift and unload the products.

6.2 产品运输过程中，必须有防雨措施，防止雨水淋湿。

6.3 带包装箱的产品在吊运过程中，绳索应挂在包装箱底部四个角的枕木上，未包装的产品应采用专用提升装置提升，可提升100mm先离地-150mm，然后正式吊装。

6.4   During transportation, there should be no up and down slopes greater than 15° on the transportation line. In order to ensure that the vehicle can bear the load evenly, the center of gravity of the product should be located on the vertical centerline of the vehicle during loading. In order to prevent

displacement and overturning of the product during transportation, the direction of the long axis of the product should be consistent with the transportation direction, and the product should be firmly bound on the transport vehicle.

6.5   When loading and unloading without a crane, the safety technical requirements should be met, and the lifting capacity should be checked to see if it matches the transport weight of the product.

 

6.6   For products with a trolley required by the user, a trolley with rollers is installed at the bottom, which is generally unloaded during transportation to ensure the stability of the product transportation. After arriving at the destination, it is reset and installed before installation. Products with a trolley. By changing the direction of the roller shafts at both ends of the frame by 90°,

产品可以水平或垂直移动。

6.7 产品送达目的地后，应尽量缩短运输状态下的停车时间（避免露天停车）。 安装前应尽量停放在有遮盖、干燥、通风的地方。 同时，应采取措施使产品防盗、防潮、防灰尘、污垢、碰撞、损坏和污垢。

 

7. Inspection and acceptance

7.1   After receiving the product, the user should open the box for inspection and acceptance in time, check whether the items listed in the packing list are complete, check whether the transformer is damaged during transportation, whether the product parts are damaged and displaced, and whether the fasteners are loose, whether the insulation is damaged and whether there are traces of contamination, etc.

7.2 检查产品铭牌上的数据是否与用户规定的产品规格、容量、电压等级、接线组标签、短路阻抗等一致。

7.3 产品开箱检查后，如不立即投入使用，应重新包装并放置在室内安全的地方（防盗、防潮、防尘、防污、防撞）警告产品的存储。

7.4   The acceptance of the transformer shall be signed on the corresponding handover letter together with the transportation department. The handover letter shall reflect the problems found during the inspection.

7.5 检验中如发现包装箱及产品有严重损坏，应立即通知运输、保险部门，并留置现场处置。

 

8、安装前目视检查

8.1   After opening the box, remove the guards (if any) to check the external condition, paying particular attention to the mechanical integrity of the coil and the core, the degree of compression of the wire circle and the core, and the tightening of the bolts outside the connection.

 

 

 

 

 

8.2 检查后，所有紧固件和线圈、铁芯的受压部位必须按顺序重新拧紧，不允许有松动。

8.3   Reset the dismantled parts in accordance with the provisions of the factory technical conditions and the relevant instructions of the complete set of componentsInstalled on the transformer body.

8.4 对于产品上的灰尘和污垢，尽量使用干燥的压缩空气。 在特殊情况下，例如用抹布清洁，抹布必须干燥、清洁且不起毛。

8.5 当存放时间较长，变压器表面有水滴或严重结露时，应进行干燥处理，待线圈绝缘性能合格后方可使用。

 

9. Inspection test before putting into operation

9.1   Measure the DC resistance of the high and low voltage windings (whether the data is consistent with the data given in the factory test certificate).

9.2检查铁芯的接地（接地片一般位于下铁轭或上铁轭的末端），检查接地是否可靠，是否有异物重叠，是否有多个点接地现象。

9.3 测量绝缘电阻

 

Voltage class	10kV	20kV	30kV
High voltage coil to low voltage coil	≥500MΩ	≥800MΩ	≥1000MΩ
高压线圈接地	≥500MΩ	≥800MΩ	≥1000MΩ
Low voltage coil (0.4V) to ground	≥50MΩ	≥50MΩ	≥50MΩ
Core to ground	≥5MΩ	≥5MΩ	≥5MΩ

 

9.4   When doing the power frequency withstand voltage test, the temperature control probe wire should be taken out from the wire enclosure to prevent the breakdown of the internal components of the thermostat, and even the breakdown of the transformer coil.

9.5 检查保护系统是否完好。

9.6   The installation position of the transformer should be at least 800mm away from the wall and other objects that affect the heat dissipation conditions. After the transformer is in place, the grounding bolts should be connected to the general grounding circuit for reliable grounding.

 

10.网络运营

10.1 After the auxiliary protection device and monitoring system are grounded and qualified, the transformer should first run under no-load, and after three times of shocks are closed, check and adjust the relay protection system.

10.2 产品出厂后，高压侧分接位置按额定值位置连接。 运行期间需要进行电压调整。 根据产品铭牌上标明的分接电压，在相应的分接接线上同时调整三相（无励磁调压时），切断变压器电源。

10.3 变压器采用BWDK系列温控器，测温元件嵌入低压线圈上端，可自动检测并显示三相线圈各自的工作温度。 当盘管温度达到设定温度时，温度计能自动启动风机、停止风机、报警、跳闸，设定温度可由用户调节。

 

11。 保养

干式变压器运行一段时间后，应切断电源，并进行以下必要的检查和维护。

11.1 Check coils, sealing wires, tap terminals and fasteners in various parts for damage, deformation, loosening, discoloration, discharge traces and corrosion. measure.

11.2 Remove dust from the transformer. All parts that can be touched by hands should be wiped with a clean, lint-free dry cloth, etc., but no volatile cleaners should be used. For the hard-to-wipe parts inside the iron core coil, dry compressed air should be used to blow off the dust.

11.3 装有风扇的变压器还应清除风扇内的灰尘和泥土（注意不要因损坏而使风扇叶片变形）并检查风扇轴承的润滑脂，必要时补充或更换。

11.4 检查维修完毕后，变压器再次投入运行前，应仔细检查有无金属或非金属异物掉落、留在线圈、铁芯内及绝缘件上。

 

一、安全事项

12.1 温控器（及风机）的电源应通过开关屏获得，不能直接接变压器。

12.2 Before the transformer is put into operation, the grounding system of the transformer room must be checked.

12.3 变压器外壳的门应关闭至

ensure the safety of electricity use.

12.4 There should be measures to prevent small animals from entering the transformer room to avoid accidents.

12.5 The staff must wear insulating shoes when entering the transformer room, pay attention to the safe distance from the live part and do not touch the transformer.

12.6 如发现变压器噪声突然增大，应注意观察变压器的负载情况和电网电压，注意变压器的温度变化，并联系相关人员进行处理。及时咨询。

12.7 The transformer should be inspected and maintained regularly for 1-2 years to ensure the normal operation of the transformer.

12.8 设备的安装、测试、运行和维护

变压器必须由合格的专业人员进行。