SR745-W3-P5-G5-HI  变压器  改变交流电压的装置

GE Multilin 745-W3-P5-G5-HI-ALR变压器保护系统是一款高速单元，控制功率范围为90 ~ 300v DC;70 ~ 265 V AC，符合IEEE、ANSI和NEMA标准，可安装在标准19英寸面板上。

变压器是一种利用电磁感应原理来改变交流电压的装置。它主要由铁芯和绕组组成，绕组是变压器的电路部分，铁芯是变压器的磁路部分。

当变压器的一次绕组接入交流电源时，绕组中就会产生交变磁通，这个磁通会穿过一次绕组和二次绕组，在绕组中产生感应电动势。

SR745-W3-P5-G5-HI变压器按照用途可以分为电力变压器、特种变压器和仪用变压器等。电力变压器是用于电力系统中的变压器，它的主要作用是将高电压降低到适合输送和使用的电压等级。特种变压器是用于特殊用途的变压器，如电炉变压器、整流变压器等。仪用变压器是用于测量和保护电路中的变压器，如电压互感器、电流互感器等。

SR745-W3-P5-G5-HI变压器具有变换电压、变换电流、变换阻抗等作用，是电力系统中不可缺少的重要设备之一。

变压器主要通过电磁感应原理改变电压、电流和阻抗。具体来说，变压器的一次绕组接入交流电源时，绕组中就会产生交变磁通，这个磁通会穿过一次绕组和二次绕组，在绕组中产生感应电动势。由于二次绕组的匝数不同，所以二次绕组中产生的感应电动势也不同，从而实现了电压的变换。

另外，SR745-W3-P5-G5-HI变压器的二次绕组中的电流也会受到一次绕组中的电流的影响，从而实现了电流的变换。同时，变压器还可以通过改变绕组的匝数比来改变阻抗，从而满足不同设备对阻抗的要求。

SR745-W3-P5-G5-HI  变压器  改变交流电压的装置

The GE Multilin 745-W3-P5-G5-HI-ALR transformer protection system is a high-speed unit with a control power range of 90 to 300v DC. 70 to 265 V AC, compliant with IEEE, ANSI and NEMA standards, can be installed on a standard 19-inch panel.

A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. It is mainly composed of an iron core and a winding, the winding is the circuit part of the transformer, and the iron core is the magnetic circuit part of the transformer.

When the primary winding of the transformer is connected to the AC power supply, an alternating magnetic flux will be generated in the winding, and this magnetic flux will pass through the primary and secondary winding, creating an induced electromotive force in the winding. 

SR745-W3-P5-G5-HI transformers can be divided into power transformers, special transformers and instrument transformers according to their use. Power transformer is a transformer used in power systems, its main role is to reduce high voltage to a voltage level suitable for transmission and use. Special transformers are transformers used for special purposes, such as electric furnace transformers, rectifier transformers, etc. Instrument transformer is used to measure and protect the transformer in the circuit, such as voltage transformer, current transformer, etc.

SR745-W3-P5-G5-HI transformer has the function of transforming voltage, transforming current, transforming impedance, etc., and is one of the indispensable important equipment in the power system.

Transformers change voltage, current and impedance mainly through the principle of electromagnetic induction. Specifically, when the primary winding of the transformer is connected to the AC power supply, the alternating magnetic flux will be generated in the winding, and this magnetic flux will pass through the primary and secondary winding, creating an induced electromotive force in the winding. Because the number of turns of the secondary winding is different, the induced electromotive force generated in the secondary winding is also different, so that the voltage transformation is realized.

In addition, the current in the secondary winding of the SR745-W3-P5-G5-HI transformer will also be affected by the current in the primary winding, so that the current transformation is realized. At the same time, the transformer can also change the impedance by changing the turn ratio of the winding, so as to meet the impedance requirements of different equipment.