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Topic :: Transformer
How neutral voltage for transformer decided? eg 33kv neutral voltage for 200MVA transformer?
MEIL,
1 4862why incomer bay is required before transformer bay if there are more than 1 nos. of transformer bay.
3030A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?
L&T,
5184A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.
2070How can transformer oil be used in transformers with voltage rating above its breakdown voltage?
2 4351What is maximum permissible length of cable from transformer (33kV/0.433kV) HT side to HT panel which contain VCB? In which standard i shall get this information.
MSEB,
6 16332Will it be OK to connect a 5MVA 33/6.6kV Ynd11 Transformer to a Star connected Motor. Or on other words connecting a Delta to a Star. I have another 30MVA 33/11 Dyn11 and would it be practical to convert it to Dd0 consequently converting the Voltage Ratio to 33/6.35kV Dd0.
1 5364In a star to star transformer can we use a common neutral for both star connected primary and secondary
1 4012
Difference between PowerPlay transformer and power play reports?
All tape of electrical questions Answers tape of motor transformer e.o.t crane
If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?
what is R Core Transformer. how it differs from normal transformers. dont search in net and post the answer.
Draw the line diagram of diffretial relay connected to transformer?
How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.
Why Transformer Neutral having one earth pit ( more earth electrode resistance) whereas body have many earth pit ( less earth electrode resistance)?
how we arrange the hv side with delta connection in case 33/11kv of transformer.
what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end
i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400
what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?
How is the percentage impedence of a transformer fixed at design stage???
How a capacitor discharge weld power supply works? what is the use of a pulse transformer?
what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?
what r the checklist while installing 500 kva transformer
