We have a 14MVA, 6.6kV generator generating power to the 33kV network through a 14MVA 6.6kV/33kV Transformer. This 14MVA Generator is grounded through a 762ohm grounding resistor to limit the fault current to 5A. Now we are going to add one unit of 2MVA generator to the 6.6kV system to run...
My earlier thread 238-259943 was on Overheating of cables in trench. Now we end up having 21 x 1C, 630sqmm XLPE/PVC cables for the 2000kW 415V turbine generator system. The configuration of the cables laid flat spaced in trench is as follow, following IEE Wiring Regulation method 20...
We are going to carry out the following tests on a 1800kVA 440V Generator: (stator windings were newly rewound)
1. Insulation Resistance and Polarization Index test
2. DC Resistance test of windings
3. No load output voltage with separate excitation and record excitation voltage and current.
4...
We had a cable fault with the following findings:
8 out of 18 numbers of 630mm sq. XLPE/PVC copper cables were found shorted to earth in a 670mm x 500mm(D) Trench. Cables were laid in three layers, 9 cables in each layers. Cables were found laid touching each other.
According to design...
We are facing a voltage drop problem at our load side fed by a long overhead low voltage cable from kilometers away. Currently, we are having a booster transformer installed at the source end of the line but during peak period, voltage at the load side can go as low as 335V (required voltage is...
