Optical voltage transformer developed countries photoelectric current voltage transformer sensing methods can be divided into two kinds of active-and passive

Optical voltage transformer developed countries photoelectric current voltage transformer sensing methods can be divided into two kinds of active-and passive. Active type active high side voltage signal by  electri cenergy meter  signal is passed in.  Voltage stabilizer  signal to the light emitting diode, and then transmitted from the optical fiber to the low potential side, into an electrical signal for the inverter output after amplification. The luminous intensity of the diode is proportional to the applied voltage, the signal output is proportional to the applied voltage. Study how the photoelectric transformer substation automation system interface and communication, the realization of photovoltaic substation digitization will be of great significance.