NGFS Open Voltage Sensor
|
The NGFS Open Voltage Sensor is an easy-to-install floating sensor with passive optics at line potential delivering high bandwidth and exceptional frequency response for observing harmonics and fast phenomena.
PERFORMANCE Bandwidth to faithfully reproduce harmonics and transients. ALL OPTICAL Passive optics at line potential with complete galvanic isolation between instrumentation and high voltage environment. ANALOG & DIGITAL Low energy analog output, as well as digital 61850-9-2 and PMU outputs. |
|
| ||
|
The primary sensor is typically installed in a high field area next to the line. It is passive with connection via optical fiber to the secondary converter electronics installed at the base of the pole and paired with a power quality meter.
|
The primary sensor may also be mounted directly on the HV bus or line in temporary applications where optical fibers are kept clean and dry. Careful positioning of the sensing head provides good rejection of signals from adjacent phases. One sensor can be used at multiple voltage classes and relocated as need requires (making it useful for establishing baseline performance, periodic checks, or diagnostic work).
|
|
The NGFS is a high bandwidth sensor which preserves the ratio of the harmonics relative to the fundamental without an absolute calibration.
Here we can see the actual waveform of a switching transient captured by the NGFS. 4 kHZ ringing is clearly visible on top of a distorted power frequency waveform.
Here we can see the actual waveform of a switching transient captured by the NGFS. 4 kHZ ringing is clearly visible on top of a distorted power frequency waveform.