Results 251 to 260 of about 51,630 (303)
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Electrical Engineering, 1943
Airplane circuit breakers are recognized as important units in the electrical systems of military aircraft. The design of such circuit breakers can be combined with switching and contactor functions. This makes possible the use of welldeveloped switch and contactor structures.
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Airplane circuit breakers are recognized as important units in the electrical systems of military aircraft. The design of such circuit breakers can be combined with switching and contactor functions. This makes possible the use of welldeveloped switch and contactor structures.
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Test Circuits for HVDC Circuit Breakers
IEEE Transactions on Power Delivery, 2017High voltage direct current circuit breakers (HVDC CBs) are necessary for reliable and safe operation of future multi-terminal meshed HVDC grids. So far no commercially mature products of such equipment exist. A few industrial concepts as a result of advances in power electronics have been proposed and prototypes have been built.
N. A. Belda, R. P. P. Smeets
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Dual-circuit hybrid circuit breaker
2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), 2017A DC fault will propagate quickly in a DC grid and results in significant DC voltage drop and large current increase. To protect the DC grid from the DC faults, the concept of hybrid HVDC circuit breaker (DCCB) is widely-accepted due to its low conducting loss and fast operation speed.
Chuanyue Li, Sheng Wang, Jun Liang
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2022
<div class="section abstract"> <div class="htmlview paragraph">This SAE Standard defines the test conditions, procedures, and performance requirements for circuit breakers in ratings up to and including 200 A. The document includes automatic reset, modified reset, and manually reset types of circuit breakers for 12 VDC, 24 VDC, and 48 VDC
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<div class="section abstract"> <div class="htmlview paragraph">This SAE Standard defines the test conditions, procedures, and performance requirements for circuit breakers in ratings up to and including 200 A. The document includes automatic reset, modified reset, and manually reset types of circuit breakers for 12 VDC, 24 VDC, and 48 VDC
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Transactions of the American Institute of Electrical Engineers, 1942
DURING the past few years the rapid expansion of mercury-arc rectifier installations at 600 volts d-c, both as to the total kilowatts installed and the relatively large number of units operated in parallel, has emphasized the importance of switchgear in providing suitable rectifier operation.
D. I. Bohn, Otto Jensen
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DURING the past few years the rapid expansion of mercury-arc rectifier installations at 600 volts d-c, both as to the total kilowatts installed and the relatively large number of units operated in parallel, has emphasized the importance of switchgear in providing suitable rectifier operation.
D. I. Bohn, Otto Jensen
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Circuit Breaker Protection for Industrial Circuits
Transactions of the American Institute of Electrical Engineers, 1933The demand for continuity of service to customers, together with the need to reduce maintenance costs, and increase the safety to operators and property, has made it necessary to improve the protective devices used in the distribution circuit. In the past, this protection has been provided by knife switches and fuses.
H. J. Lingal, O. S. Jennings
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Transactions of the American Institute of Electrical Engineers, 1923
The 150-kv. system operated for some years by the Southern California Edison Company has not made use of automatic operation of circuit breakers. The multiplication of generating stations and connections which accompanied the change to 220-kv. makes desirable the automatic sectionalizing of the line in cases of trouble and, therefore, requires circuit ...
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The 150-kv. system operated for some years by the Southern California Edison Company has not made use of automatic operation of circuit breakers. The multiplication of generating stations and connections which accompanied the change to 220-kv. makes desirable the automatic sectionalizing of the line in cases of trouble and, therefore, requires circuit ...
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Transactions of the American Institute of Electrical Engineers, 1941
CIRCUIT breaker application is being simplified. A subcommittee of the protective devices committee of the AIEE has studied methods of calculating short circuit currents and has prepared a report which presents a simplified procedure based on standardized contact parting times and typical current decrements.1 To facilitate the use of this method ...
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CIRCUIT breaker application is being simplified. A subcommittee of the protective devices committee of the AIEE has studied methods of calculating short circuit currents and has prepared a report which presents a simplified procedure based on standardized contact parting times and typical current decrements.1 To facilitate the use of this method ...
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Technical Physics Letters, 1999
Current can be transferred to the load of an inductive energy storage device by rapidly increasing the inductance of a circuit element connected in parallel with the load. The present paper suggests using a coil with a ferromagnetic core for this purpose. In addition to the principal (toroidal) field, an orthogonal (poloidal) control field is generated
G. A. Shneerson +3 more
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Current can be transferred to the load of an inductive energy storage device by rapidly increasing the inductance of a circuit element connected in parallel with the load. The present paper suggests using a coil with a ferromagnetic core for this purpose. In addition to the principal (toroidal) field, an orthogonal (poloidal) control field is generated
G. A. Shneerson +3 more
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Journal of the A.I.E.E., 1927
This paper tells of (1) conditions which govern the design of a breaker of a given interrupting capacity, (2) the standardization that has been accomplished in rating breakers, and (3) trends in the design of breakers constructed to meet operating requirements.
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This paper tells of (1) conditions which govern the design of a breaker of a given interrupting capacity, (2) the standardization that has been accomplished in rating breakers, and (3) trends in the design of breakers constructed to meet operating requirements.
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