Answer / niraj

A surge protector (or surge suppressor) is an appliance designed to protect electrical devices from voltage spikes. A surge protector attempts to limit the voltage supplied to an electric device by either blocking or by shorting to ground any unwanted voltages above a safe threshold. This article primarily discusses specifications and components relevant to the type of protector that diverts (shorts) a voltage spike to ground; however, there is some coverage of other methods.

Answer / imran

SURGE protection are mostly used on discharge line of
compressor cause it's very heavy pressure it can cause
damage compressure & it's condition can may be create disaster

Answer / tukmol

surge protection such as check valves, pilot actuated surge
valves, vibration absorbing spings are used to protect and
prolong the life rating of the pipe lines usualy main pipe
lines, discharge, elbow connections and before valves.

Answer / guest

in hydro power plant....

A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of 4ma at 60 deg and 20 ma at 600 deg. This output (4-20ma) from the transmitter is connected to an IGBT-inverter to control a high speed (-12,000 to +12,000 RPM) DC motor. And in the inverter it is programmed as, for 4ma the motor speed will be -3,000 RPM and for 20ma the motor speed will be +10,000 RPM. The question is : If the motor speed is +5,500 (RPM), what will be the temperature? (-sign indicates that the motion is in reverse direction).

9 Answers  

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Instrumentation symbols interpration, P& ID, Logic diagram analysis, Electrical drawing analysis.

0 Answers   CCIE,

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What is the use of GMV in turbine?

0 Answers   Hamsco, Maruti Suzuki,

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can install leveltrol in steam drum for measurment the level of steam drum? if not then why?

1 Answers  

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What is differnece between leveltroll and interface leveltrol?

2 Answers  

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Tell me about PID Tuning and what is PID.

4 Answers  

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Ega interview going on for power plant. Which type of question will asked. For questions

0 Answers   EGA,

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Describe the function of Accumulator into the Pump

0 Answers  

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Can be operate control valve without positioning if yes ? how and why?

4 Answers   Focus,

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HI friends.I am Surya a BTech in Electronics and Instrumentation Engineering.I am going to appear Relince Industries Ltd all India writen test very soon. so plz help me by sendind the probable questions about my subject.My mail ID is surya.barik@gmail.com.

0 Answers   Reliance,

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Shall we get the reading on level transmitter only by termination,without commissioning?

1 Answers  

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If a differential pressure transmitter is calibrated for 0~2500 mmH2o and transmits a 4~20mA dc signal. The transmitter is placed across an orifice plate which is sized to create 2500 mmH2o differential at 5000m3/Hr a) what is the flow rate when the transmitter signal is 13.0mA DC? b) what is the signal output of the transmitter when flow rate is 2500 m3/Hr ?

5 Answers  

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