Basic Magnetic Terms definition with Formulas

Basic Magnetic Terms definition with Formulas

Magnetic and Magnetism Important terms definition and formulas Magnetic field or Magnetic Induction (B) Magnet or Electromagnet produces a Magnetic field. The field where the magnet attracts or repels magnetic materials such as iron, steel, etc. it may be defined as a force on a moving charge, F=q x v x B Where      F= Force,      V = Speed ... Read More »

Factors of Contactor’s Contact Design

Factors of Contactor's Contact Design

Factors of Contactor’s Contact Design The Following factors consider while designing the Contactor’s contacts Current carrying Capacity The ability of current carrying capacity of contacts takes into account while designing contactor’s contacts. The same factor consider while selecting the material for contacts. Hard drawn copper or forged copper is a good option for better result. Pressure between Contacts Pressure between contacts ... Read More »

How to test a battery with Test meter?

How to test a battery with Test meter?

How to test a battery with Test meter? There are lots of tools and meters to test battery, car battery and cells to check and measure the battery efficiency and condition. Although, we can test battery with digital millimeter, but for an almost accurate checkup, we may use special tools like Digital Battery Tester, Multi-Battery Tester, 12 Volt Electronic Battery ... Read More »

Electrical Interlocking

Electrical Interlocking control circuit diagram

Electrical Interlocking To interconnect the motor circuit in such a way, in which the second motor will not start until the first one run likewise the third one motor will not run unless the second one run and so on. This kind of motor circuit connection is called interlocking. A simple electrical interlocking control diagram is shown below. click image ... Read More »

Rated characteristics of Electrical Contactors

Electric Magnetic Contactor Thermal Overload relay

Rated characteristics of Electrical Contactors Click image to enlarge 1. Types: (i) Electromagnetic (ii) Electro-pneumatic (iii) Pneumatic Important Terms and Definitions related to Motor Control and Protection 2. Interrupting Medium: (i) Air (ii) Oil (iii) SF6 gas (iv) Vacuum Abnormal Operating Condition and Causes of Induction Motors 3. Rated values of voltages: (i) Rated voltage (Operational voltage) For a three ... Read More »

Abnormal Operating Condition and Causes of Induction Motors

Abnormal Operating Condition and Causes of Induction Motors

Abnormal Operating Condition and Causes of Induction Motors Three phase induction motors are used on a large scale in industries. We may divide the abnormal conditions and causes of three phase motor this way. Click image to enlarge following are the Abnormal Operating Condition and Causes of Induction Motors Mechanical Overload Block the pump or gear system connected with motors ... Read More »