变压器 ）主要用于各种高低压成套电气、进出口设备、精密机床、UPS、电镀、照明、加热、通信、化工等行业设备的控制电力、电源之用，SG变压器系列三相干式变压器能有效隔离部分谐波，抗干扰性强和安全性好的特点。 SG transformer series three-phase dry-type transformers ( 380V transformers ) are mainly used for controlling power and power supply of various high and low voltage complete sets of electrical, import and export equipment, precision machine tools, UPS, plating, lighting, heating, communication, chemical and other industries. SG transformer series three-phase dry-type transformer can effectively isolate some harmonics, strong anti-interference and good safety. SG transformer series three-phase dry-type transformers are our company ’s latest Siemens products of the same type. The three-phase dry-type transformers, especially 160VA-16KVA three-phase dry-type transformers, have been standardized in appearance and installation dimensions, and are common with Siemens 4AP series The product complies with VDE0550, IEC439, JB5555, GB5226 and other international and national standards. It has the advantages of small size, light weight, simple maintenance and reliable operation. Design and production are strictly in accordance with IEC international standards and relevant GB national standards.
变压器 ）相关参数如下： SG transformer series, SG three-phase dry isolation transformer ( 380V transformer ) related parameters are as follows:
• Rated capacity: 1kVA ~ 1000kVA
• Rated voltage: 660V, 480V, 380V, 220V, 200V, etc. • Rated frequency: 50Hz, 60Hz
• Connection group: Y, yn0, Y, d11, D, yn11, etc. • Protection level: IP00, IP20
• Insulation class: B, F, H
变压器 ）使用环境： SG transformer series, SG three-phase dry isolation transformer ( 380V transformer ) using environment:
• Altitude: ≤1000m
• Adapt to ambient temperature: -10 ~ + 45 ℃
• Adapt relative temperature: ≤95% at 26 ℃
• Use environment: indoors (please provide protection level when using outdoors)
变压器 ）结构特征： SG transformer series, SG three-phase dry-type isolation transformer ( 380V transformer ) structural features:
The core of the SG series three-phase dry-type transformer is made of high-quality cold-rolled silicon steel sheets. According to the different insulation levels, the whole is impregnated with insulating paint of different insulation levels. . According to the different protection levels, the transformer box is made of high-quality steel, which not only fully considers the air circulation in the structure, but also effectively plays a protective role. The transformer wiring cable is also easy to connect, and the design is full of humanity. According to user requirements, voltage and ammeter, power indicator, molded case circuit breaker, etc. can be installed.
变压器 ）订货须知： SG transformer series, SG three-phase dry isolation transformer ( 380V transformer ) Ordering instructions:
• Product model • Rated capacity • Rated voltage • Connection group • Working method • Insulation level • Protection level
• Other special requirements are specified in the technical agreement.
变压器 ）用户须知： SG transformer series, SG three-phase dry-type isolation transformer ( 380V transformer ) Notice to users:
Whether the cabinet is damaged during transportation; whether the technical documents, certifications, warranty cards and accessories in the cabinet are complete; whether the transformer and other components are intact; whether the fasteners are loose or displaced, and whether the terminals are in contact bad.
The transformer installation site must be dry and ventilated, without strong vibration, and no leakage of ash, sand and rain; be careful when moving in place. Excessive tilt is strictly prohibited. After being in place, the machine chassis must be uniformly stressed and the box must be placed smoothly. There is enough room for ventilation and maintenance of the machine.
Short-circuit the "input" and "output" terminals and lead out the test point. The test point shall be tested for insulation resistance to ground (machine casing) with a 1000 megaohm meter. This value should be greater than 2 megaohm.
4.Check the wiring:
The first step and most important work of the commissioning staff is to carefully check the wiring. This work is the key to ensure the reliable operation of the transformer and must be done carefully. details as follows:
a: Check if the main circuit wiring is firm and reliable, especially if the wiring at the contact point of QF air switch and KM contactor is loose, it must be tightened.
b: Check whether the electrical connections of various electrical components on the back of the panel, such as voltmeters, ammeters, and indicator lights, are reliable. If they are loose, they must be tightened.
5. Conditions of use:
SG series transformers should be used indoors. The normal conditions of use are:
Ambient temperature: -15 ° C ~ + 45 °
C Altitude: not exceeding 1000 meters;
Relative humidity: 90%;
The installation site should be free of gases, steam, chemical precipitation, dust, dirt and other explosive and corrosive media that seriously affect the insulation strength of the transformer; the installation site should be free of severe vibration or bumps.
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