Answer Posted / raul
Surge absorbers are protective devices used to absorb the
complete surge i,e. due to lightening surge or any
transient surge in the system..........unlike the
lightening arrestor in which a non-linear resistor is
provided which provides a low resistance path to the
dangerously high voltages on the system to the earth......
| Is This Answer Correct ? | 21 Yes | 1 No |
Post New Answer View All Answers
please send me last 5 year interview questions
why does a dc machine has high efficiency while working as a generator than as a motor ..
If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..
What is a Phase shift meter? Where can I get one?
explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?
why sielent pole is used only in hydro generators and not in turbo generators
How can I model an open-delta ground transformer for a network supplied by 4 unit GTG and power transformer in ETAP?
WHY L-G FAULT IS MORE SEVERE IN TERMS OF RRRV?
I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?
what is data block in plc ? How the values of data block are written and read by hmi ? what is the difference between function and function block ?
Differnce between negative Pahse SequenceFunction and unbalance Function?
How can we increase fuel-power ratio of any DG set?
what is negative d.c. voltage, why this voltage is used in base transciever station.
why on delay timer used for fully automatic star delta starter?
what is the difference between surge protection capacitor and surge arrestor
