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Hari007... The list of corrections given to Mani15 should be used. Following are additional precautions: a) T must always be in Kelvin. b) If the Law uses 2 variables, like P&V, P&T, T&V, V&n, or the 3 variable P&V&T, then dimension units don't need to be metric. c) But, if the "Ideal Gas Law"...

Andy1984... You have answered only the 1st question, and part of the second ! To broaden your knowledge I suggest you try to find out what the Nameplate reveals by asking a mfg of motors in your location. Regards, Phil Corso.

Smelter.... Been dealing with Nuclear Plant Protection for years. The reactor uses a 2oo4 relay system. Equipment outside the reactor such as turbine, generator, pumps, follow OSHA rules. Regards, Phil Corso

@ Jeffrey... Presuming you use metric units in your location, please provide following: Qf, flow-rate thru fill-line pump. Tf, time fill-line pump is in service, Dt, diameter of tank. Ht, height of tank. Hd, height of discharge-line(s) above bottom of tank. Od, diameter of discharge-line...

@ Onoshoho Please provide a simple sketch or drawing to the forum or me at my email [email protected] ! Phil Corso

Jeffrey... 1) Are the 2 output orifices at the same level from the surface of the water? 2) Are the 2 output orifices the same size? 3) Are the 2 output orifices very small with respect to the volume of water in the tank? 4) Is there water flowing into the tank? As long as the answer to Q3 is...

Andy1984... 1) Voltage rating? 2) Duty Classification? 3) Special Operating Conditions? Regards, Phil Corso

Deniz... I have been involved with natural-gas and liquid-natural-gas (LNG) facilities since 1966. And I'm aware of the work going on to combine H2 and Natural-Gas in pipelines today. Unfortunately it's not as simple Chemistry laws suggest. But if you want more info contact an outfit called...

Wish you well ! Phil Corso

Rrp... The answer to your specific question is: Using a BUS-PT rather than an INCOMING-LINE-PT prevents knowing the condition of SOURCE & LINE VOLTAGE before attempting reclosure or transfer ! Phil

Rrp... Let's call Incoming Breakers, 51-1 & 51-2, and the Tie-Breaker 24 ! 1) Are 52-1 and 52-2, tripped by operation of any protective device upstream of them ? 2) Are 52-1 & 52-2 tripped by Voltage-loss devices ? If so, there should be 2-types, one Instantaneous, and the other delayed ! 3) Are...

Keiran... Thank you for the additional information. Frankly, I can't suggest a remedy for legal reasons. Have you contacted the Drive mfg? Phil Corso

Oneye14... Of course you are correct regarding Jurutera's Goal. And your loop-approach is correct. However, I must apologize for my earlier mistaken calcs. Following are the right values: a) Now that the rated Power and rated Voltage are known, rated Amperes, A = P/V or 0.8575. b)...

Jurutera... Now the rest is easy Q.E.D. ! Phil Corso

Gentlemen... How can you calculate voltage-drop without knowing the rated Amperes, or rated Ohms of the Solenoid valve? 1) David2's guess was 0.3 A, thus establishing the Solenoid's rated-power as 8 Watts ! 2) Oneye's guess was 0.5 A, thus establishing the Solenoid's rated-power as 12 Watts ...

Keiran1984 Your schematic represents a typical connection of power to the stator of a 3-phase Wye-connected AC motor. A permanent-magnetic-motor requires DC. However, it could be driven by an AC source if the AC is first converted to DC. Do you have other information, perhaps a photo of its...

Rafay Usman... 1) What is the Voltage-drop measurement, Vd, across the contacts of a closed breaker in service? 2) What is the Resistance measurement, Rc, across the contacts of a closed breaker not in service? Regards, Phil Corso

MRasool... Open the subject MCB and reveal the condition of its contacts ! Regards, Phil Corso

MRasool... Arcing is always expected as the contacts part and in many situations it can be quite apparent. Contact-life is a function of the arc-magnitude and arc-duration. When used on AC service, magnitude and duration vary... from max to zero. And, of course' current is zero every half...

Thibhika... Mattylce's presentation of the circuit is an excellent one, as long as there is no measurable wiring distances between devices. But, if the resistances of cable between devices are included then the equation becomes quite complicated, requiring use of the Hyperbolic function, Sinh ...