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What is rated voltage and current in transformers and how to calculate them if given 50k VA?
Rated voltage is the voltage at primary side. Rated current can be found from the equation, Rated Current= Output KVA / Output rated voltage
What is meant by rated voltage rated current and rated power of a transformer?
The ratings state the limits on voltage and current for operating the transformer at full load. The rated voltage times the rated current gives the rated VA of the transformer. Transormers are not usually rated directly for power because this depends on the power factor of the load applied.
What mean by va in current transformer?
Its simply multiplication of voltage applied and current.
Where is the voltage regulator located in a 1994 Dodge 250 RAM VAN It is not inside the alternator.?
i have a 91 dodge ram 250 van and the voltage regulator went out on it. My Va was located in the computer. a new computer will run about $230. i got mine from a junk yard for 30 bucks and it works fine. the computer is on the fire wall in a black box. i have a 91 dodge ram 250 van and the voltage regulator went out on it. My Va was located in the computer. a new computer will run about $230. i got mine from a junk yard for 30 bucks and it works fine. the computer is on the fire wall in a black box.
Why does a transformer rated in KVA or VA?
Because the manufacturer has no way of knowing the power factor of load it will be supplying. So its rating is always the product of its rated voltage and its rated current, which is in volt amperes.
What are transformers rated?
A transformer's capacity is rated in volt amperes(V.A). This is the product of the secondary winding's current rating and voltage rating.
Does a transformer convert the current from 240 volts to 120 volt?
Transformers are rated in KVA or VA (volt-amps). They transform voltages from one value to another. The current in a transformer is inverse to the voltage. This is why transformers are rated in KVA and smaller ones in VA.
Why transformers are called in MVA?
1. POWER TRANSFORMERS ARE "RATED" IN MEGAVOLT-AMPERES" NOT "CALLED" 2. SMALL TRAFO ARE RATED IN VOLT-AMPERE (VA) --- 0 TO 999 VA 3. DISTRIBUTION TRAFO ARE RATED KILOVOLT-AMPERE (KVA) --- 1000 TO 999,999 VA 4. POWER TRAFO ARE RATED MEGAVOLT-AMPERE (MVA) --- 1,000,000 VA UP POWER = VOLTAGE X AMPERES = VA POWER = VOLTAGE X AMPERES X P.F.(1) = VA IT IS NOT RATED IN WATTS/KILOWATTS/MEGAWATTS FOR THE LOAD IS NOT DEFINED FOR THE END USERS OR DESIGNERS AND THE POWER FACTOR IS ALSO UNKNOWN. TO BE SAFE, THEY USE 100% P.F. (UNITY) OR 1 FOR RESISTIVE LOAD THATS WHY THE RESULT IS ONLY VOLT-AMPERE. MOTOR OR INDUCTION LOAD ARE USUALLY LESS THAN 1.
What is a differential output voltage formula?
Va-Vb
If a centre tap transformer rated as 12V-0-12V 1Athen what will be the secondary current of that perticular transformer?
The output voltage of a transformer is not connected to the maximum rated current. You state that the transformer is rated at 12-0-12 at a current of 1A, therefore the maximum (rated) current on the secondary would be 1A. Normally, transformers are rated in VA (volt amps) which is simply voltage x current, the voltage across the two 12v terminals would be 12+12 volts, making the rating of the transformer 24VA.
What is VA rating?
VA Rating stands for Volt-Ampere Rating, It is the basic unit of Alternator or Transformer. This is so because in AC System Power(P) is the product of Voltage(V),Current(I)and Power Factor. Power(P) = Voltage(V) * Current(C) * Power Factor But power factor of the load is never constant and depends on the type of load. So to resolve this problem power ratings of the above mentioned machine is always rated in VA or KVA and its the product of voltage and current.
What is the formula for calculating full load current for 1000kva transformer?
All what you need to do is to know the voltage rating of the secondary sidelets say that you have a transformer with the following specifications:500 KVA, Volatge 13.8/4.16KVSo,Full load Current= 500 / (4.16 * 1.732) = 69 Amps
