(1) Basic information

(1) Basic information

ABB motors refer to motors manufactured and produced by the ABB brand used in daily life. They are generally called "motors" and are electromagnetic devices that mean electric energy conversion or transmission based on the rules of electromagnetic induction. The main function is to generate driving torque, and the motor is used in the circuit 200V as a power supply for equipment or various machines.

(2) Product introduction

A transformer is a static motor that uses the principle of electromagnetic induction to convert electrical energy from one voltage into another voltage. Electrical energy at a voltage (usually alternating current). From the generation, transmission and distribution of electricity to each consumer, the use of every kind. Various transformers. First of all, from the perspective of power systems, transformers are a major equipment. We know that there is no need to transmit a high-power power supply over a long distance and then use a lower voltage, the corresponding high current. This is possible.

This is because: on the one hand, high current will cause high power loss on the transmission line; on the other hand, high current will also cause the voltage of the transmission line to drop greatly, making power impossible to be generated at all. To do this, a transformer is needed. In order to increase the terminal voltage of the generator, the corresponding current can reduce the introduction of the transformer.

The main functions of the transformer are as follows: voltage conversion; current conversion, impedance conversion; isolation; voltage stabilization (magnetic saturation transformer); autotransformer; high-voltage transformer (dry and oil-immersed type) The commonly used core shapes of transformers are E-type, C-type, Xed type, and CD type. Transformers can be divided into: distribution transformers, power transformers, fully enclosed transformers, and combination transformers. GB/T1497-1988 Voltage regulators, dry-type transformers, single-phase transformers, electric furnace transformers, rectifying transformers, reactors, anti-interference voltage conversion GB/T1397-1989 devices, lightning protection transformers, box transformers test transformers angle transformers large current transformers excitation transformers The most basic voltage regulator includes two sets of wound coils, which are mutually inductive. When alternating current (a known frequency) flows into a group of coils, induction will be emitted in the other group of coils.

There is an AC voltage at the same frequency, and the induced voltage depends on the degree of coupling between the two coils and the flux linkage. The coil connected to AC power is called.& quot; Secondary coil (primary coil); and the electrical voltage across this coil are called the primary voltage. The induced voltage in the secondary coil can be greater than or less than the secondary voltage, which is composed of the primary voltage. The turn ratio between secondary coils and secondary coils is determined by the turn ratio between secondary coils and secondary coils. Therefore, transformers are divided into step-up, step-down and transformers.

There are two devices. Most transformers have a fixed iron core wound with one coil and two coils. Based on iron. Most of the magnetic flux is confined to the iron core, so magnetic coupling between the two sets of coils can be achieved to a considerable extent. In some transformers, the coil and the iron core are closely combined, and the ratio of the primary voltage to the secondary voltage is almost the same as the coil turn ratio of the two. Therefore, the number of turns of the transformer can be used as a boost for the transformer or as a reference indicator for hypotension.

(3) Product application areas

It is suitable for various fields such as fans, water pumps, metallurgy, printing and dyeing, textiles, papermaking, thermoelectric, cement, steel, various mechanical equipment, etc.

(4) Application cases

Shanghai Pudong Veolia Water Co., Ltd. Linjiang 1#Effluent pump energy-saving renovation project.

1) Implementation content and cycle: The company has updated and upgraded a horizontal centrifugal pump and supporting motors in the clean water pump room. It has adopted new motors and new horizontal double suction centrifugal pumps, which has greatly improved the operating efficiency. The rated flow of the single pump after the technical transformation has increased by 1500m3/h, the rated head is reduced by 16m, and the supporting motor power is reduced by 1500kW. The equipment uses the horizontal centrifugal pump of ANDRITZ (China) Co., Ltd. and ABB's supporting motor, and Shanghai Longdu Construction and Installation Engineering Co., Ltd. is responsible for the installation and construction. The total investment of the project is 1.5155 million yuan. The start date is October 15, 2016, and the completion date is December 25, 2016. The company installed and recorded the power measurement of the horizontal centrifugal pump and supporting motor of the renovation project, saving electricity by 1318463kWh before and after the renovation. Equivalent to 379.7 tons of standard coal. The project started on October 15, 2016 and was completed on December 25, 2016.

2) Energy conservation and emission reduction effect and investment payback period: This project saves 1318463 kWh of electricity. According to the company's average electricity bill in the past three years is 0.85 yuan/kWh, this project saves 1.121 million yuan annually. The investment amount of this project is 1.5155 million yuan, so the investment payback period of this project is 1.35 years.