Search results for query: *

Dear Gents I need to know if there is any standard for accepted calibration tolerance for PT, Thermocouples,RTD,.... Best Regards

hello Gents. i had a what i think very simple question. i am designing a heater, the heater will finally have a plug like any apparatous, as you know the plug may have two position so, the 220 volt will be swapped to my heater,i.e i will get 220V instead of the neutral. what shall i do to...

hello engineers I have a workshop feeded from diesel generator and i will order a distribution panel and i have a question, shall i use double pole circuit breaker for the single phase loads?

hi everybody what is the difference between switchgear and switchyard?

hello everyone i am working at a power station , and we have some jogging motorized valves(i.e motor is running as the command is available) our DCS package is FOXBORO backage, my question is how can i have this type of output and how this application is implementeed in other systems, our...

hello guys, I really face a problem in Fieldbus of Foxboro DCS, failure of different busses happen. any recommendation?

hello engineers, 1- Do anyone know a good website which describe the standards of grounding, bonding& shielding? 2- is there any difference between grounding and earthing? 3- is shielding must be separate from earth?

hello engineers is there difference between grounding and earthing?

hello engineers, can anyone help me to find a book or any document to give me the laws of flow of liguids and gasses and the bassic type of pumps ?

hello engineers, can anyone help me to have principal idea about DCS system, i hear always about Modbus, Profibus, Fieldbus, Device net i want to know what is the difference.

does anyone know what this word (IT mains )means?

can anyone help me in method of synchronization using microprocessors?

hello engineers, can anyone suggest me a website or a book which give a simple idea about compressors and its type and how it is protected? and i want to know the role of pressure switchs and diffrential control and how it act

can any one help me to find the critical gain priciesly? i use rlocus command and sisotool

i want to know the effect of frequency on power factor of an induction motor? if i have a pump driven by 1 kw induction motor,50 hz,and the motor is supplied from an inverter,could i reach 100 hz without any proplem?