What is the minimum percentage of power that a powerplant
can support in ilanding mode ?
Answer Posted / k.prakashchandra
That depends on governor.We were able to run even at 1% of
full load.With digital governor it is very easy in
PCS(constant rpm) mode
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what is the significance of tan&delta and how it performed in power transformer
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
What is Delta Connection? What is meant by Forward Delta & Reverse Delta & How Will be the Connection in Power Transformers?
In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.
What type of core material is used for metering C.T and protection C.T???
defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?
what is mean by parallel operation of permanent magnet generators
why we use ac supply as 415 volts instead of 415 v why we cant apply 230 v for dc
How to maintain ac plant?
There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.
what is saturation kit?which use above 15 kw motors panel side.
What are the necessary components of the feedback control system?
Testing procedure of DG alternator stability test
Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1. H1-H2 = H2-H3 H3-H1 2. H2-H3 = H3-H1 H1-H2 3. H3-H1 = H1-H2 H2-H3 For the LV side also: 4. X1-X0 = X2-X0 X3-X0 5. X2-X0 = X3-X0 X1-X0 6. X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0 H2-H0 H3-H0 X0-X1 X0-X2 X0-X3 128.0 119.9 7.2 29.2 13.3 15.8 70.7 128.4 59.2 23.4 22.0 3.6 7.2 120.1 128.1 13.4 29.3 15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?
What is CCM in Electrical ? where can we use this material?