How a Single-Stack Variable Reluctance Stepper Motor Works: Stator, Rotor, and Phases
Edwiin
Field: Power switch
China
A single-stack variable reluctance stepper motor features a salient-pole stator with concentrated windings mounted directly on the stator poles. The number of phases is determined by the connection configuration of these windings, typically comprising three or four windings. The rotor is constructed from ferromagnetic material and contains no windings.
Both the stator and rotor are made of high-quality, high-permeability magnetic materials, requiring only a small exciting current to produce a strong magnetic field. When a DC source is applied to a stator phase via a semiconductor switch, a magnetic field is generated, causing the rotor axis to align with the stator field axis.
Give a tip and encourage the author!
Recommended
How to Choose a Thermal Relay for Motor Protection?
Thermal Relays for Motor Overload Protection: Principles, Selection, and ApplicationIn motor control systems, fuses are primarily used for short-circuit protection. However, they cannot protect against overheating caused by prolonged overloading, frequent forward-reverse operation, or undervoltage operation. Currently, thermal relays are widely used for motor overload protection. A thermal relay is a protective device that operates based on the thermal effect of electric current, and is essentia
James
10/22/2025
How to Choose & Maintain Electric Motors: 6 Key Steps
"Selecting a High-Quality Motor" – Remember the Six Key Steps Inspect (Look): Check the motor’s appearanceThe motor’s surface should have a smooth, even paint finish. The nameplate must be properly installed with complete and clear markings, including: model number, serial number, rated power, rated current, rated voltage, allowable temperature rise, connection method, speed, noise level, frequency, protection rating, weight, standard code, duty type, insulation class, manufacturing date, and ma
Felix Spark
10/21/2025
What Is the Working Principle of a Power Plant Boiler?
The working principle of a power plant boiler is to utilize the thermal energy released from fuel combustion to heat feedwater, producing a sufficient quantity of superheated steam that meets specified parameters and quality requirements. The amount of steam produced is known as the boiler's evaporation capacity, typically measured in tons per hour (t/h). Steam parameters primarily refer to pressure and temperature, expressed in megapascals (MPa) and degrees Celsius (°C), respectively. Steam qua
Edwiin
10/10/2025
What is the principle of live-line washing for substations?
Why Do Electrical Equipment Need a "Bath"?Due to atmospheric pollution, contaminants accumulate on insulating porcelain insulators and posts. During rain, this can lead to pollution flashover, which in severe cases may cause insulation breakdown, resulting in short circuits or grounding faults. Therefore, the insulating parts of substation equipment must be periodically washed with water to prevent flashover and avoid insulation degradation that could lead to equipment failure.Which Equipment Is
Encyclopedia
10/10/2025
