Coaxial capacitive voltage divider with high division ratio for high voltage pulses with very fast rise times

2011 ◽  
Author(s):  
Tonis Hobejogi ◽  
Juergen Biela
Keyword(s):  
High Voltage ◽  
Voltage Divider ◽  
Division Ratio ◽  
Capacitive Voltage ◽  
Capacitive Voltage Divider ◽  
Voltage Pulses ◽  
Fast Rise

Design of a Two Levels Self-Integrating Capacitive Divider

2014 ◽  
Vol 599-601 ◽  
pp. 882-886
Author(s):  
Bao Feng Cao ◽  
Jiang Bing Fan ◽  
Li Jun Song ◽  
Xue Qin Zhang ◽  
Xin Li ◽  
...  
Keyword(s):  
High Voltage ◽  
Voltage Pulse ◽  
Low Voltage ◽  
Voltage Divider ◽  
High Voltage Pulse ◽  
Pulse Source ◽  
Voltage Level ◽  
Capacitive Divider ◽  
Capacitive Voltage ◽  
Capacitive Voltage Divider

A ims . A kind of two levels self-integrating capacitive voltage divider is designed to online measure high voltage nanosecond pulse. Methods. The circuit principle of capacitive divider is analyzed, and the theoretical voltage ratio is calculated. The calibration is carried out by using a low voltage pulse source. The divider with a primary voltage divide ratio 601 has been tested to frequency response exceed 1GHz. The second voltage divide ratio can be set flexibly using different ratio attenuators according to the different voltage level of the source. Result. Finally, this divider is used in measuring 600kV high voltage pulse source, and the experimental results show that the present coaxial capacitive divider is reliable and satisfactory for the measuring requirement in time domain and frequency domain.

scholarly journals A Development of a Capacitive Voltage Divider for High Voltage Measurement as Part of a Combined Current and Voltage Sensor

2020 ◽  
Vol 26 (4) ◽  
pp. 25-31
Author(s):  
Roman Hrbac ◽  
Vaclav Kolar ◽  
Mikolaj Bartlomiejczyk ◽  
Tomas Mlcak ◽  
Petr Orsag ◽  
...  
Keyword(s):  
Measurement Error ◽  
High Voltage ◽  
Smart Grids ◽  
Renewable Energy Sources ◽  
Voltage Divider ◽  
Power Measurement ◽  
Voltage Measurement ◽  
Power Networks ◽  
Capacitive Voltage ◽  
Capacitive Voltage Divider

This article deals with the development of capacitive voltage divider for high voltage measurements and presents a method of analysis and optimization of its parameters. This divider is a part of a combined voltage and current sensor for measurements in high voltage power networks. The sensor allows continuous monitoring of the network distribution status and performs a quick diagnosis and location of possible network failures. Deployment of these devices will support semi-autonomous control of power networks and it can be considered as a step from traditional power grids toward smart grids. This is a worldwide trend connected with increasing number of renewable energy sources and plug-in electric vehicles as described in. In this way, it contributes to the reliability of the distribution network. Together with automated control techniques and fault location methods, it enables its self-healing capability. The following characteristics required for the sensor include: current measurement error up to 2 %, voltage measurement error up to 0.5 %, and power measurement error up to 5 %. At the same time, it is necessary that the sensor is cost-effective - relatively cheap. There were selected capacitors made in series production for the capacitive divider designing. The capacitive voltage divider was tested in terms of time and temperature stability; the results are described in the paper. Then, the method of mathematical correction of a temperature dependence of the capacitive voltage divider was suggested and tested.

Sign in / Sign up

Export Citation Format

Share Document