Размещено 6 лет назад по предмету
Английский язык
от siriusoriginal987
Переведите пожалуйста с английского на русский язык.
1. When an instrument or meter having a voltage winding is connected to a high-voltage
alternating-current circuit, the use of a voltage transformer is necessary.
2. It is not practicable to wind the voltage coil of a meter for direct connection to, say, an
11000-volt supply, because the space available on the voltage electromagnet is not sufficient to
Accommodate the number of turns of wire which would be necessary.
3. Moreover it would be quite impossible to insulate adequately the winding and the terminals in such a manner as to render the meter safe to handle when the circuit to which it was connected was alive.
4. Accordingly, a voltage transformer is always used when a meter is installed for use on a high-voltage system.
5. In this connection potentials in excess of 660 volts are regarded as high voltage.
6. A voltage transformer may be defined as an instrument transformer for the transformation of voltage from one value to anther, usually a lower one.
7. The primary winding of a voltage transformer is the winding to which is applied the voltage to be measured or controlled, as the case may be.
8. The secondary winding is the winding the terminals of which are connected to the meter or instrument.