high voltage switchgear

High Voltage Switchgear

Electrical Technology

Electrical TechnologyHigh Voltage Switchgear The power system deals with voltage above 36KV, is referred as high voltage. As the voltage level is high the arcing produced during switching operation is also very high. So, special care to be taken during designing of high voltage switchgear. High voltage circuit breaker, is the main component of HV…

medium voltage switchgear

Medium Voltage Switchgear

Electrical Technology

Electrical TechnologyFrom 3 KV to 36 KV switchgear system is categorized as medium voltage switchgear or MV switchgear. These switchgears are of many types. They may metal enclosed indoor type, metal enclosed outdoor type, outdoor type without metal enclosure, etc. The interruption medium of this switchgear may be oil, SF and vacuum. The main requirement…

high voltage switchgear

Low Voltage Switchgear or LV Switchgear

Electrical Technology

Electrical TechnologyGenerally electrical switchgear rated up to 1 KV is termed as low voltage switchgear. The term LV Switchgear includes low voltage circuit breakers, switches, off load electrical isolators, HRC fuses, earth leakage circuit breaker, miniature circuit breakers (MCB) and molded case circuit breakers (MCCB) etc. i.e. all the accessories required to protect the LV…

electroplating-electricalmastar

What is Electroplating and Process of Electroplating

Electrical Technology

Electrical TechnologyElectroplating Electroplating is the process of covering the articles made up of cheap metals by a thin covering of precious metal such as iron with nickel chromium, silver or gold with one or more of them. Electroplating is done due to one or more of following reasons: Electroplating protects the metals against corrosion. It…

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Alternator basic characteristics- what we needs to know.

Electrical Technology

Electrical TechnologyAlternator Rating: Alternators are rated according to the voltage they are designed to produce and the maximum current they are capable of providing. The maximum current that can be supplied by an alternator depends upon the maximum heating loss that can be sustained in the armature. This heating loss (which is an I2R power…

solar power electricalmastar

How to Make Party String Lights using Solar power

Electrical Technology

Electrical TechnologyThe complete construction details of solar powered string lights using a simple charging circuit, a few rechargeable pencil cells, and a small portable solar panel. Learn more in this easy-to-understand article about how to make your own simple solar powered string lights. Solar cells: expose them to sunlight or in fact any light and…

parallel dg

Generate three phase power by 3 single phase generators?

Electrical Technology

Electrical TechnologyMany installation sites need electric power for construction activities. When the site not large all construction equipments are powered with single phase supply. Such single phase DG sets may be available. Site gets single phase supply from utilities for construction. A new construction equipment requires a three phase supply. We have three DG sets…

transmission

Why we use 3 phase power supply, not 4/5/6 phase

Electrical Technology

Electrical TechnologySingle-phase motors have unambiguous rotation (with a capacitor start), and with a center tap neutral, a single-phase system can be balanced. I’m not sure regarding the economics of multi-phase systems. It seems to me that for each phase added, the total power capacity is increased by one line-ground voltage times one line current so…

Motor current

3 Phase Motor Running on Single Phase Power Supply

Electrical Technology

Electrical TechnologyThree phase asynchronous AC motor is widely used in industrial and agricultural production due to its simple structure, low cost, easy maintenance and easy operation. 3-phase AC motor uses 3 phase power supply (3 ph 220v, 380v, 400v, 415v, 480v etc.), but in some actual applications, we have single phase power supplies only (1…

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