日本計測器製造所 List of Products and Services

The "NPG-3 Partial Discharge Calibrator" is a calibration charge generator used for the calibration of the entire partial discharge measurement system or the partial discharge measuring instrument itself. It generates waveforms with rise times equivalent to those of partial discharge in air and oil at a frequency of approximately 100 P.P.S. Additionally, the calibration charge can be generated arbitrarily from 0 to 2500 pC, and it can be read directly on the display. Please feel free to contact us if you have any requests. 【Features】 ■ The meter features a hybrid display of liquid crystal and digital analog. ■ It is compact, with a volume ratio of 2/3 compared to the NPG-2. *For more details, please download the PDF or feel free to contact us.

• Other measurement, recording and measuring instruments

The "DI-21 type detection impedance" is a product designed for high-sensitivity partial discharge detection. By tuning the resonant frequency of the test circuit, which consists of the specimen, coupling capacitor, and detector, to the tuning frequency of the partial discharge measuring instrument, it has been developed to enable high-sensitivity partial discharge measurements. Additionally, since the charging current of the test circuit is not drawn into the measuring instrument, safe measurements can be performed. Please feel free to contact us if you have any requests. 【Features】 ■ Minimal change in measurement sensitivity due to the length of the cables between the measuring instruments ■ Safe as the charging current is not drawn into the measuring instrument ■ Less susceptible to noise from the grounding side *For more details, please download the PDF or feel free to contact us.

• Other measurement, recording and measuring instruments

The "CD-6 Partial Discharge Measuring Device" is a newly designed product developed to enhance the performance of the CD-5 model and accommodate automation. To support the automation of measurements, it allows for settings and readings of switching ranges, pulse counting, and measurement value readings via a computer. Additionally, improvements have been made in various areas such as pulse linearity, reduction of internal noise, temperature stability, and the dynamic characteristics of the indicating instrument. 【Features】 ■ Safety ■ Standardization of inputs ■ Expanded attenuator range ■ Improved linearity of pulse output ■ Reduction of internal noise ■ Standard equipped counter *For more details, please download the PDF or feel free to contact us.

• Other measurement, recording and measuring instruments