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What is a small bus

Small bus is the control power supply, signal power supply, protection power supply, AC voltage, AC power supply and other common integration line, generally placed on the top of the protection screen cabinet, with copper rod, aluminum bar or cable connection. It plays the role of collecting and ... Read More

Radiation problems associated with laminated bus row

Radiation, usually associated with the sun, is visible light (short wave) containing heat (long wave, or infrared) radiated to the Earth through a vacuum. Black surfaces absorb heat (high absorptivity: 0.9), while white and bright surfaces reflect short waves (low absorptivity: 0.25). Upon touchi... Read More

Introduction to Stacked bus row 3

On the surface: convection and radiation After the heat reaches the external cooling surface A, it is discharged from the object through the external cooling surface A through the convection flux Qconv and the radiation flux Qrad. In order to minimize the temperature rise, not only should there b... Read More

Introduction to Stacked bus row 2

Temperature effect of thermal resistance Rt For the long-term reliability of the system, the effect of the generated thermal Ploss (electrical loss) on the hot spot temperature of the system must be optimized. The hot spot temperature may be called δ T (or? T). Proper thermal management design ai... Read More

Introduction to Stacked bus row 1

Thermal management is an important design element of all electrical systems because it is directly related to the long-term reliability and life of the system. If the electrical system overheats, major components will begin to fail, causing the system to fail instantaneously. For example, IGBT ch... Read More

Electricians must know common electrical components

Electricians must know common electrical components Electric House 999 2022-03-29 17:09 Electrical components are the most commonly contacted equipment in electrical work. For novice electricians, it may not be easy to open an electrical drawing and find the corresponding electrical components ac... Read More

Wiring Instructions for Common Electrical Components (continuously updated)

1, iOF 11 common contact, 12 normally closed contact, 14 normally open contact, wiring 11, 14 contact. 2. V90 holding brake 220V needs separate relay control, wiring white DC24V, black DC0V. Connect 400V to driver X7 terminal, white B+, black B-. 3, SMC cylinder magnetic open (D-M9B) NPN blue DC0... Read More