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A photoresistor is commonly called a photocell . Its resistance changes with the exposure to light. the common one is the Cds type, or Cadmium sulphide type.The opto-electronic property of this semiconductor material makes it vary its resisitance when light falls on it.
This photocell drives a...
If the circiut breaker is not too large , it may be more practical to drain the old oil and fill it with new oil. Make sure you test the oil before you refill and do not allow the breaker to remain without oil for long to prevent entry of moisture into the breaker.
Typically carry out a close -...
It is important to note that typically this is an excellent solution when you have a number of generators of one power rating and couple more of another power/ voltage rating.
So normally we assume that this transformer will be placed in a storage yard, sometimes unused for years.
Considering...
