1.Electric cars in India
by Electric cars in India – 21 century people are most of the electrical equipment is use. The entire sector is in digitalization like engineering, automobile, …
Author: Hiren
1. ELECTRICAL TERMS
Electrical line is defined resistance inductance and capacitance. Three terms are like brahma Vishnu and Mahesh. We are discuss about some electrical term most …
CABLES
1. General: Today’s industries, such as Petro-chemicals, fertilizers, power plants, etc., require a reliable source of power supply. Any discontinuity in the power source of …
CONCEPT OF CORONA
The phenomenon of ionisation of surrounding air, hissing noise, and glow of light is told of corona effect. The corona is halo like purplish glow …
1 INSULATION RESISTANCE TEST
Insulation Resistance (IR) of electrical equipment refer to the resistance between conducting part and earth, expressed in mega ohms or in other words it is …
1 WHAT IS INSULATION ?
1.1 General: Insulation is required to keep electrical conductors separated from each other and from other nearby objects. Ideally, insulation should be totally none conducting, …
1.CONDUCTOR MATIRIAL AND PROPERTIES
conductor allow the transmission of heat or light from one source to another source. conductor flow electron to inside from atom to atom. 1. CONDUCTING …
1.What is grounding
OBJECTIVE: After going through this chapter the trainee will be able to tell about 1) The necessity & awareness of safety in handling electrical equipment …
1.Power factor
1.Power factor Definition power factor is “cosine angle between voltage and current is told of power factor”. Power factor is a simple, unit-less ratio of …
NPCIL 2019 Exam paper SA/ST CAT-I (Electrical)
Question No. 1 The maximum temperature permitted in Class A insulation is A) 180° C B) 155° C C) 120° C D) 105° …