Answer Posted / mohd hakim
its an emergency rescue device whenever elevator stuck between two floors its sense and open the door of the elevator to the nearest floor after 3 minuteswith the help of dc batteries.
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
how we findout a ignater is faulty or not?
How can we calculate the KVA rating of a Distribution transformer from its core details?
Why we use Electrical energy rather than any other type of energy, mostly? Explain behavior of open secondary CT and short circuited secondary PT in energized condition?
Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.
at work we have a 3 phase motor but on testing one phase isnt getting a reading. it runs 24 hours a day all week. stops and starts well no noise or heating. the phase isnt down to earth.is it just a bad meter reading or not? phases one and three came up with a resistance reading of 0.4 but phase 2 couldnt get anything shows up as open circuit.
What do you mean by Frame 5 Gas Turbine as well as Mark II.
is oil viscosity affect on motor current?
What are the advantages of nichols chart?
What are the advantages of thermal power plant?
how to check ac servo motor
what is meant by moulded case circuit breaker ?
wHAT IS CAPACITANCE LATCHING? hOW TO CALCULATE CAPACITANCE LATCHING? hOW TO SOLVE THE PROBLEM IF CAPACITANCE LATCHING APPLIED?
what are the main faults that occur in stabilizers? How they corrected and resolved ? Types of stabilizers ?
v/f drive basic princeple
how to calculate the size of the HT cable