BijLi WaLa

18/01/2026

Difference Between Contactor and Relay (With Practical Examples)

Relays and contactors are both electro-mechanical switching devices used to control electrical circuits, but they serve different purposes. Relays are suited for low-power applications, managing loads up to 10 A, while contactors handle heavier loads exceeding 10 A, often used in industrial settings. They differ in voltage ratings, noise generation, size, and the need for overload protection. Relays operate with minimal arc suppression and are compact, whereas contactors include more auxiliary contacts and are larger due to their high current capacity. Understanding these distinctions is crucial for effective circuit design in automation and motor control applications....

https://bijliwala.co.in/switches/difference-between-contactor-and-relay-with-practical-examples/

10/01/2026

Single Phase vs Three Phase Power – Which Is Better and Why?

The article compares single phase and three phase electrical power systems, highlighting their differences, advantages, and disadvantages. Single phase power relies on one alternating voltage, suitable for homes and small loads, but is less efficient and has voltage fluctuations. In contrast, three phase power utilizes three alternating currents, ideal for heavy machinery and industries, offering higher efficiency and stable power delivery. The article includes practical applications, power ratings, and wiring requirements for both systems. Ultimately, the choice between single phase and three phase power depends on load requirements, efficiency, and costs. Each system serves specific needs effectively....

The article compares single phase and three phase electrical power systems, highlighting their differences, advantages, and disadvantages. Single phase power relies on one alternating voltage, suit…

31/12/2025

What Happens If Earthing Is Not Proper? (Dangers Explained)

Ever seen an Electric motor from inside ? There is very minor air gap in between stator & rotor. Power transfers from stator to rotor takes place through air. Even due to air gap, rotor rotates with so much power. The Principle behind that transformation is known as "Faraday law of Electromagnetic Induction". Which means Electrical power can transferred through an air in a form of electromagnetic field. Electrical appliances with metallic body always remains in danger of potential generation even in normal working conditions due to induction,...

https://bijliwala.co.in/earthing/what-happens-if-earthing-is-not-proper-dangers-explained/

25/12/2025

Why Does My MCB Keep Tripping? 7 Common Causes & Solutions

In Electrical, There are two things 'ON' & 'OFF'. Things seems pretty much simple. But Electricity is also dangerous if not handled in an appropriate way. It is the safety of human & safety of machines which makes the an Electrical system complex. In Electrical safety, MCB is the most basic tool. MCB Array of 8 single pole MCB; rated C6 MCB stands for "miniature circuit breaker". This electromechanical device is a type of mini circuit breaker which trips the circuit in faulty situations like short circuit & overload conditions....

https://bijliwala.co.in/uncategorized/why-does-my-mcb-keep-tripping-7-common-causes-solutions/

22/12/2025

Electrical shock & Safety measures for it

Electrical shock is a significant hazard that can occur in various settings, leading to severe injuries or fatalities. This post explains the nature, causes, and mechanisms of electrical shock, emphasizing its dangers. It discusses the effects on the body, ranging from mild tingling to severe health problems including cardiac arrest. Common causes include contact with live wires, faulty appliances, and poor earthing. The post outlines effective safety measures, such as proper earthing, using circuit breakers like RCCB, and promoting good electrical habits. It highlights the importance of electrical safety in preventing accidents and protecting both individuals and equipment....

Learn about electrical shock, its dangers, causes, effects, and essential safety measures to prevent accidents at home and work.

04/12/2025

MCB stands for "miniature circuit breaker"

MCB is an electromechanical protection device which provides protection in overload & short circuit conditions. In fault situation, MCB eliminated the faulty circuit. So that rest of the health circuit remains working.

30/11/2025

Most common electrical faults in homes & how to fix (or detect) them

The post highlights the transition from traditional to modern electrical practices, emphasizing dependency on electricity. It identifies common household electrical faults such as flickering lights, burnt wires, and MCB tripping, offering corrective and preventive measures. The importance of qualified professionals, earthing, and voltage management for safety is also discussed....

The post highlights the transition from traditional to modern electrical practices, emphasizing dependency on electricity. It identifies common household electrical faults such as flickering lights…

15/11/2025

Most common Electrical faults at homes ?

04/11/2025

Electricity is essential for modern life, but it poses risks if not handled safely. This post outlines ten crucial electrical safety tips for households. Key advice includes hiring a qualified technician for installations to ensure correct wire selection and circuit breakers, using earthing to prevent electric shock, and regularly inspecting electrical appliances for quality standards. Circuit breakers protect against overloads and short circuits, while voltage stabilizers and monitoring devices maintain safe voltage levels. Good habits, such as using appliances with dry hands, are emphasized, along with maintaining appliances based on their IP ratings. Always evaluate safety before operating any electrical device....

https://bijliwala.co.in/safety/10-electrical-safety-tips-every-household-in-india-should-follow/

30/09/2025

Ohm's law Ohm's law states that " DC current flowing through a resistor is directly proportional to the applied voltage. As voltage increase current in line increases, If voltage decreases current in line decreases." Such that; V∝IV=I*R (V=voltage, I=Current, R=Resistance) 'Resistance' is the property of a material. Which is a type of opposition offered by the material to the flow of electrical current. Resistance is the intrinsic property of material which depend upon its overall dimension & materialistic characteristics. DC power Vs AC power…...

https://bijliwala.co.in/reactance/understanding-reactance-in-electrical-circuits/

11/09/2025

Power triangle & its three side : Apparent, True & Reactive !...

https://bijliwala.co.in/power/comprehensive-guide-for-power-triangle/