SF6 circuit-breaker design and performance

1979 ◽  
Vol 25 (2) ◽  
pp. 121
Author(s):  
J.S. Stewart
Keyword(s):  
Circuit Breaker ◽  
Sf6 Circuit Breaker ◽  
And Performance

scholarly journals Rancang-Bangun Prototipe Sistem Kontrol Berbasis Programmable Logic Controller untuk Pengoperasian Miniatur Penyortiran Material

2020 ◽  
Vol 16 (3) ◽  
Author(s):  
Arief Goeritno ◽  
Surya Pratama
Keyword(s):  
Performance Measurement ◽  
Work Performance ◽  
Circuit Breaker ◽  
Programmable Logic Controller ◽  
Conveyor Belt ◽  
Pneumatic Cylinder ◽  
Programmable Logic ◽  
Electrical System ◽  
Switched Mode Power Supply ◽  
And Performance

A miniature sorting of material quality has been made, aided by a prototype of the controller system based on the Mitsubishi FX1N-24MR Programmable Logic Controller (PLC). A number of stages include the manufacture of the conveyor system unit, the electrical system, PLC programming, and performance measurement. The conveyor unit assembling was processed by installing the conveyor belt, dc motor, pneumatic cylinder, solenoid valve, and sensors. The electrical system is an integration of the Mitsubishi FX1N-24MR PLC, switched-mode power supply, miniature circuit breaker (MCB), dc voltage regulator circuit, relays, digital counters, pushbuttons, and selector switches arranged in a 20 x 30 x 15 cm panel box. Mitsubishi PLC system programming is based on algorithmic determination and ladder diagram arrangement assisted by GX Developer (GX Work). Performance measurement in the form of pulse readings is carried out by setting and manufacturing ladder counters and shift registers to count the number of pulses for each material and the accuracy of sorting when the material is detected simultaneously. The system performance is indicated by pulse reading accuracy and sorting timing accuracy. The reading of the pulse from the proximity switch affects the counter calculation to activate the pneumatic cylinder unit in sorting. Sorting for material-A takes 11 pulses, while for material-B, it takes 19 pulses. The synchronization measurement functions when an error occurs in the system in order to maintain the input received is the same as the output in the PLC-based control system. 

Analysis of Vibration Isolator’s Anti-Seismic Performance in Porcelain SF6 High Voltage Circuit Breaker

2013 ◽  
Vol 448-453 ◽  
pp. 2045-2048
Author(s):  
Yan Zhong Ju ◽  
Xin Lei Wu
Keyword(s):  
Seismic Performance ◽  
High Voltage ◽  
Seismic Isolation ◽  
Circuit Breaker ◽  
Isolation System ◽  
High Voltage Circuit Breaker ◽  
Rubber Bearing ◽  
Laminated Rubber Bearing ◽  
Sf6 Circuit Breaker ◽  
Isolation Device

Choosing LW15-550Y porcelain high voltage SF6 circuit breaker as the research subject, we designed the lead laminated rubber bearing (LRB) seismic isolation device for LW15-550Y circuit breaker. We finally gets the results that the LRB isolation system increases the flexibility of the breaker structure and improves the seismic performance of the high voltage circuit breaker structure.

Types of Circuit Breaker and its Application in Substation Protection

2017 ◽  
Vol 8 (1) ◽  
pp. 213
Author(s):  
Hui Hwang Goh ◽  
Sy yi Sim ◽  
Nur Iskandar Bin Hamzah ◽  
Sulaiman bin Mazlan ◽  
Chin Wan Ling ◽  
...  
Keyword(s):  
Power System ◽  
Circuit Breaker ◽  
Protection System ◽  
System Component ◽  
Sulphur Hexafluoride ◽  
Vacuum Circuit Breaker ◽  
Sf6 Circuit Breaker ◽  
Protection Devices ◽  
Air Circuit Breaker ◽  
Dc Breaker

Power system consists of the generation, transmission, distribution, and substation. All the power system component requires suitable protection devices as the protection system to protect the system during fault occur. In this paper, the circuit breaker has been selected as one of the protection devices in several applications. The types of circuit breaker that has been reviewed in this paper are oil circuit breaker (OCB), air circuit breaker (ACB), sulphur hexafluoride (SF6) circuit breaker, vacuum circuit breaker, and DC breaker which are hybrid DC breaker and solid-state DC breaker. Normally, the systems or the circuits disrupted or damaged by the fault. To implement the protection system in the system or circuit, the type of faults and cause of faults should be known to overcome the fault. To provide the suitable voltage for the consumer, the substation is needed to control the voltage transmitted at high voltage from the generating station. Protection system is also required in a substation.

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