what is the change over switch ,switch disconnector ,bypass
switch and switch disconnector fuse unit?
Answer Posted / bhanu
change over switch, which is used to change the source of
power, there are four connection points( terminals) in a
change over switch,Example:- you can connect DG power &
board power as input terminals then connect output
terminals to the load ( just like two switches inter
connected by mechanically or electrically, at a time one
switch will ON & other is in OFF position)
Switch disconnector/ switch disconnector fuse unit :- in
old days the main switches( SFU- Switch fuse unit) out put
terminals& fuses are mechanically connected when switch is
in OFF position but in SDF/SD when the switch is OFF
position there is no any connection between input/ out put
terminals & fuses.
Bypass switch - it is just like an ON/OFF switch , if any
auto linked circuit connections are failure you can use a
switch to make the circuit complete.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
Is it possible to download the Siemens Selection Chart(TYPE 2 coordination) for 1) fuseless selection 2)Fuse selection
How many size of cable required for a 300m long and 30kw inductive lode
in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?
how we provide neutral earth on synchronising panel as per electrical standards?
TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.
. What is Electrical Life & Mechanical Life of Circuit Breaker? 2. What is Electrial Life & Mechanical Life of Magnetic Contactor? 3. What is RCD, RCCB & RCBO? 4. What is the Between defferance of RCD, RCCB & RCBO?
why the frequency and voltage in india is 230v and 50HZ. when compared to USA say 110v and 60 HZ.
Yazaki india pvt ltd interview questions qurey related
How to design the no. of ceiling fans required in 5mtr X 10 mtr X 3 Mtr hight room?
USE OF 8 WAY PAN ASSEMBLY
which motor have relatively high power factor and what is reason for have high pf? 1.capacitor run motor 2.shaded pole motor 3.capacitor start motor 4.split phase motor
What is the main purpose of c.f.b.c.boiler
why 15 kw motor winding resistance is low then 5 kw motor winding resistance?
in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.
Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?