Switch Gear And Classification Of Switch Gear

What is meant By Switch Gear :


The apparatus used for switching , controlling and protecting an electrical circuit (or) equipments is known as switch gear

Examples are

Swich

FUSE

Relay

Functions of Switchgear Equipment

Normal conditions:

For the purpose of operation and maintenance

Abnormal conditions:

for clearance of fault quickly 

Classification of Switchgear

I. Based on location, switchgear are classified as

•Indoor

Generally up to 36kVA

•Outdoor

Generally greater than 36 kVA

II. Based on working voltages they are classified as

•Low voltage switchgear (up to 3.6 kV)

•Medium  voltage switchgear ( from 3.6 kV to 12 kV)

•High  voltage switchgear (> 12 kV)

1. A Switch is 

a)Fuse

b)Circuit breaker and fuse

c)Circuit breaker

d)None

2. A Switchgear is  installed

a)Outdoor only

b)Outdoor or Indoor 

c)Indoor only

d)No need to install

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