Answer Posted / me
we have a 3 phase transformer rated as:
45 KVA 60 Hz
Primary volt: 480v
Secondary volt; 120 v single phase, 220 v (L-L)
How can I calculate the Secondary maximum current (max.
load)
I have measured the Secondary current with clamp ammeter as
follow;
X: 72.6 A; Y: 64.6A; Z: 68.1A
Regards
Is This Answer Correct ? | 3 Yes | 4 No |
Post New Answer View All Answers
Which test will be more severe for VCB?
If I bring a basic electric meter from the States and hook it up in Costa Rica in a development that has only one transformer for the 50 homes, will it still be accurate regarding the usage of kilowatt hours?
What is fault clearing time for Current Limiting Moulded Case Circuit Breaker?.
What happens to voltage when current is zero?
How to calculate main incomer rating of APFC Panel ? Let's say i want to find main incomer for 11kV, 1000kVAR Panel.
A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.
which of the following elements is not present in stainless steel
what is cascade speed control device?and how this device control the speed of motors?
What is Surge Capacitor? Why it is use in Generator Circuit Breaker?
how to select the double earth conductor if 21A full load?
What is Instantaneous Earth fault relay,how will work
can the measured percentage error during calibration of single phase energy meter be negative?
stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate
What's mean HVF & HAF in Vacuum Circuit Breaker?
what is servo motor and how it works?