Results 251 to 260 of about 3,885 (299)

Connection and protection of capacitor banks

Electrical Engineering, 1950
THE FACT that capacitors are built in units of 25 or 15 kilovars for power circuits makes possible variety of groupings of these convenient “building blocks” to form large banks. The arrangement in which the capacitor units are connected in a 3-phase bank and the type of protective arrangement used may influence the cost of the installation; these ...
N. R. Clark, S. B. Farnham
openaire   +1 more source

Protection Of Tuned Capacitor Banks

Conference Record of 2007 Annual Pulp and Paper Industry Technical Conference, 2007
The purpose of this paper is to describe several different methods of protection of tuned capacitor banks, and how the relay protection settings for each are determined. Problems with the different schemes are described, and a new protective scheme is proposed.
openaire   +1 more source

Overvoltage protection of capacitor banks

2011 International Symposium on Lightning Protection, 2011
The application and effectiveness of MO surge arresters to capacitor banks is discussed. Principle application rules for different configurations are given. The influence of MO arresters with different ratings on voltage and current at the capacitors and at a re-striking circuit breaker respectively is shown and quantified.
Bernhard Richter, Lutz Gebhardt, Jonas Oliveira   +2 more
openaire   +1 more source

Continuous monitoring of a capacitor bank

IEEE Instrumentation & Measurement Magazine, 2001
We have developed a prototype system for safety assurance of a capacitor bank by combining application-specific and off-the-shelf surveillance technology for remote monitoring. Traditional surveillance technology passively records facility operations, waiting for an event to trigger a physical audit of the collected information.
A.M. Mielke, C.M. Boyle, C.A. Buenafe, J.S. Dreicer, J.R. Gattiker, B.J. Martinez, D.A. Smith   +6 more
openaire   +1 more source

A primer on capacitor bank protection

IEEE Transactions on Industry Applications, 2001
Capacitor banks are applied in power systems to provide reactive power. The reactive power results in lower current in lines upstream of the bank improving system voltage and power factor and reducing line losses. Capacitor banks can be configured as filters for harmonic reduction.
M. Bishop, T. Day, A. Chaudhary
openaire   +1 more source

Protection of large capacitor banks

Review of Scientific Instruments, 1983
Large capacitor banks, as used in many pulsed plasma experiments, are subject to catastrophic failure in the event of a short in the output or in an individual capacitor. Methods are described for minimizing the damage and down time caused by such a failure.
J. C. Sprott, T. W. Lovell
openaire   +1 more source

A study of capacitor element failures in high voltage Shunt Capacitor Banks

2017 IEEE 30th Canadian Conference on Electrical and Computer Engineering (CCECE), 2017
Internal failures in Shunt Capacitor Bank (SCB) units render trips from unbalance protection to prevent from further damage to the equipment. Fuseless and internally fused capacitor cans are the dominant technologies in power capacitor design, which do not provide external indication for units with failed elements.
Hessamoddin Jouybari-Moghaddam, Tarlochan S. Sidhu   +1 more
openaire   +1 more source

Auxiliary Digital Control Unit for Capacitor Banks

2019
This paper addresses the conception of a prototype based in an implementation of a microcontroller proposed as an alternative solution to programmable logic controllers for controlling a capacitor bank. The control considered is in accordance with the Portuguese Energy Services Regulatory Authority.
Patrícia Nunes, Mafalda Seixas, Rui Melício, Victor M. F. Mendes   +3 more
openaire   +2 more sources

Switching High-Voltage Shunt Capacitor Banks

Transactions of the American Institute of Electrical Engineers, 1951
ONE OF THE first 34.5-kv capacitor banks in this country was installed recently on the Indianapolis Power and Light Company system. This capacitor bank, totaling 7,290 kva, was part of a system program of adding reactive generation close to reactive load in the most practical and economical manner. See Figures 1 and 2.
A. W. Funkhouser, R. C. Van Sickle, D. F. Shankle   +2 more
openaire   +1 more source

Switched-Capacitor Power Converters With Soft Charging via Auxiliary Capacitor Bank

2019 IEEE 62nd International Midwest Symposium on Circuits and Systems (MWSCAS), 2019
This paper presents a circuit solution for increasing the efficiency of switched-capacitor power converters utilizing a soft charging technique. The technique is based on an auxiliary capacitor bank that reduces the energy losses associated with parasitic capacitances.
Mark Lipski, Stefano Gregori
openaire   +1 more source