i spent some time in my office today and 3 times the light in my office dimmed the ups kicked in and all my instrument i am working with reset...we are in for a long cold winter.

i ran tests on a site and downloaded the electrical data...besides the voltage fluctuation from 180 to 242 volts...the frequency also went up to 56 hz just after the power was switched back on...i am getting calls for problems like pc boards tracks burning...i have a factory were all the machine shutdown and all the drives indicate overvoltage...the list just goes on...i have been to numerous site where generators have been installed totally illegal...incorrect earthing...incorrectly sized changeover switches...no earth spikes...no neutral earth bonding....now invertors have become the big thing...the modified sine wave of an invertor is 50 worse than the generators i have tested.

what are going to do!!!