Title :
Distortion-free measurement of high impulse voltages
Author :
Feser, K. ; Gockenbach, E.
Author_Institution :
Stuttgart Univ.
fDate :
7/1/1988 12:00:00 AM
Abstract :
It is shown that every high voltage divider has a limited bandwidth of some MHz, resulting in a limitation for the measurement of front oscillations or front-chopped lightning impulse voltages. It is pointed out that a voltage divider can be easily calibrated and can be constructed to prevent EMC-problems during impulse voltage measurement. Using a spherical electric field sensor with optoelectronic data transmission, a voltage measurement system with an upper bandwidth of 25 MHz has been constructed. The advantage of this system is the distortion-free measurement of all impulse test voltages in any circuit. After a short review of the principle and characteristics of the sensor, some practical applications are highlighted, showing that it can improve high-voltage measurement
Keywords :
electric sensing devices; high-voltage techniques; voltage dividers; voltage measurement; 25 MHz; EMC-problems; distortion-free measurement; front oscillations; front-chopped lightning impulse voltages; high impulse voltages; high voltage divider; optoelectronic data transmission; spherical electric field sensor; voltage measurement system; Bandwidth; Circuit testing; Data communication; Distortion measurement; Impulse testing; Lightning; Optoelectronic and photonic sensors; Sensor phenomena and characterization; Sensor systems; Voltage measurement;
Journal_Title :
Power Delivery, IEEE Transactions on