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(OIL TYPE) OF RATING, 25 KVA TO 100 KVA k,~))Y
(OIL TYPE) OF RATING, 25 KVA TO 100 KVA k,~))Y

... All equipment and material shall be designed, manufactured and tested in accordance  with the  latest applicable Indian Standards, IEC  standard and CBIP manuals enlisted  in  the Appendix‐A, except where modified and / or supplemented by this specification.  ...
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... system, frequency and amplitude of the driving source, and phase angle of the detected signal with respect to the reference phase. This compares with the timing period in the ballistic method which depends only on the values of fixed resistors and the switching point on the capacitor charging curve. ...
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Mains electricity



Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.
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