The spraying arrangement has an electrostatic sprayer, a transformer arrangement (T1 to T3) that has a high voltage-isolation device between primary and secondary circuits or a high voltage-isolating device is provided in a circuit arrangement guided from the transformer arrangement to the spraying arrangement. The transformer arrangement attached to valve control systems, which comprises a sensor (7) and an actuator (6) lying on the high voltage potential, placed in the spraying arrangement. The supply with the electrical power required for valve control system.
