系列三相干式隔离变压器是本厂在参照国际同类产品，结合我国国情的基础上研制生产的新一代节能型电力变压器，从 300VA 到 1600KVA 之间，符合 IEC439 、 GB5226 等国际、国家标准，绕组采用脱胎整列绕制方法；变压器进行真空浸漆，使变压器的绝缘等级达到 F 级或 H 级，产品性能达到国内外先进水平。 SG series three-phase dry-type isolation transformer is a new generation of energy-saving power transformer developed by our factory with reference to similar international products and based on China's national conditions. From 300VA to 1600KVA , it conforms to international and national standards such as IEC439 and GB5226 . The whole winding method is adopted; the transformer is vacuum dipped to make the transformer's insulation level reach F or H level, and the product performance reaches the advanced level at home and abroad. 系列三相干式隔离变压器广泛适用于交流 50Hz 至 60Hz ，电压 660V 以下的电路中，广泛用于进口重要设备、精密机床、机械电子设备、医疗设备、整流装置，照明等。 SG series three-phase dry-type isolation transformers are widely used in circuits with AC 50Hz to 60Hz and voltage below 660V , and are widely used to import important equipment, precision machine tools, mechanical and electronic equipment, medical equipment, rectifiers, lighting, etc. ±5 ％）、绕组容量的分配、次级单相绕组的配备、整流电路的运用、是否要求带外壳等，均可根据用户的要求进行精心的设计与制造。 Various input and output voltage levels of the product, connection group, number and position of adjustment taps (typically ± 5 %), distribution of winding capacity, provision of secondary single-phase windings, use of rectifier circuits, whether bands are required The shell, etc., can be carefully designed and manufactured according to user requirements.
产品特点 + Product Features
接地就可解除电网中共模干扰和其它中线的困扰，隔离变压器将三线△接线转换为四线Yo系统，加屏蔽就进一步免除了由变压器内部耦合的高频脉冲干扰和噪音，虽然有屏蔽的隔离变压器对各种NG来的干扰（脉冲和高频噪声）能有效防止，但变压器必须正确妥善接地，十分严格，否则抗共模干扰将无效果。 Establishing a new neutral - ground in the isolation transformer can relieve the common-mode interference and other neutral problems in the power grid. The isolation transformer converts the three-wire delta connection to the four-wire Yo system, and the shielding further eliminates the high-frequency pulse interference coupled by the transformer And noise, although the shielded isolation transformer can effectively prevent various NG interference (pulse and high-frequency noise), but the transformer must be properly and properly grounded, which is very strict, otherwise the anti-common mode interference will have no effect. The company can design and produce high-quality isolation transformers for customers.
特性优点： + Features:
高度隔离 Ø High isolation
性能良好 Ø Good NG performance
高度共模干扰抑制 Ø High common mode interference suppression
将△转换为Y或Y至△ Ø Convert △ to Y or Y to △
电压抽头容易转换 Ø Voltage tap is easy to switch
按用户的特殊性能要求设计 Ø Designed according to the special performance requirements of users
技术指标 + Technical indicators
输入额定电压：三相380V或单相380V或单相220V 1Input rated voltage: three-phase 380V or single-phase 380V or single-phase 220V
工作频率： 50Hz-60Hz 2 Working frequency: 50Hz-60Hz
效率： ≥95% 3 Efficiency: ≥95%
温升： <60 4 temperature rise: <60
波形畸变： <0.1% 5Waveform distortion: <0.1%
高压测试： 2500V ， 1分钟无击穿 6 High voltage test: 2500V , no breakdown for 1 minute
绝缘电阻：绕阻对地绝缘电阻≥ 7 Insulation resistance: Winding resistance to ground insulation resistance ≥
Primary to secondary insulation resistance ≥
使用条件 + Conditions of use
适用海拔高度： ≤ 1Applicable altitude: ≤
环境温度： 2 Ambient temperature:
相对湿度： ≤90% 3 Relative humidity: ≤90%
安装场所应无严重影响变压器绝缘强度的气体，蒸汽，化学性沉积，污垢，导电尘埃及无其他易爆易燃易腐蚀的物质。 4 The installation site should be free of gases, steam, chemical deposits, dirt, conductive dust that seriously affect the insulation strength of the transformer. There are no other explosive, flammable and corrosive substances in Egypt.
凡不符合上述使用条件的，应与我们协商确定。 5 Anyone who does not meet the above conditions of use shall be determined through consultation with us.
隔离变压器加装在稳压电源的应用 + Isolation transformer installed in the application of regulated power supply
星形） I. Connecting an isolation transformer (delta / star) at the power input
、若电网三次谐波和干扰信号比较严重，采用△ /Yo隔离变压器，可以去掉三次谐波和减少干扰信号。 1. If the third harmonic of the power grid and the interference signal are serious, the △ / Yo isolation transformer can be used to remove the third harmonic and reduce the interference signal.
、可以采用△ /Yo隔离变压器产生新的中性线，使设备与电网中性线无关，避免由于电网中性线不良造成设备运行不正常。 2. △ / Yo isolation transformer can be used to generate a new neutral line, so that the equipment has nothing to do with the neutral line of the power grid, to avoid the abnormal operation of the equipment due to the poor neutral line of the power grid.
、非线性负载引起的电流波形畸变（如三次谐波）可被隔离而不污染电网。 3. The current waveform distortion (such as the third harmonic) caused by non-linear load can be isolated without polluting the power grid.
三角） 2. Connect an isolation transformer (star / delta) at the power output
、防止非线性负载的电流畸变，影响到稳压电源的正常工作及反回到电网，起到净化电网的作用。 1. Prevent the current distortion of the non-linear load, which affects the normal operation of the stabilized power supply and returns to the power grid, and plays a role in purifying the power grid.
、非线性负载电流的畸变影响取样的准确性，可以在Yo/ △隔离变压器输入端采样，得到能反应实际情况的控制信号，使稳压电源控制正常。 2. The distortion of the non-linear load current affects the accuracy of sampling. It can be sampled at the input of the Yo / △ isolation transformer to obtain a control signal that can reflect the actual situation, so that the regulated power supply can be controlled normally.
、若负载不平衡，采用Yo/ △也不影响稳压电源的正常工作。 3. If the load is unbalanced, using Yo / △ will not affect the normal operation of the regulated power supply.
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