Pole-mounted circuit breaker with built-in isolating switch
A technology of pole-mounted circuit breakers and isolating switches, which is applied in the field of pole-mounted circuit breakers and intelligent power distribution equipment, can solve problems such as the inability to realize the reclosing function of circuit breakers, achieve flexible distribution network automation solutions, improve rigidity and orientation, The effect of improving the flow capacity
A technology of pole-mounted circuit breakers and isolating switches, which is applied in the field of pole-mounted circuit breakers and intelligent power distribution equipment, can solve problems such as the inability to realize the reclosing function of circuit breakers, achieve flexible distribution network automation solutions, improve rigidity and orientation, The effect of improving the flow capacity
CN112216550APending Publication Date: 2021-01-12NANJING SIFANG ZHIJIE SWITCH CO LTD +2
Image
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0039] The scheme will be described in detail below in conjunction with the accompanying drawings.
[0040] The pole-mounted circuit breaker with built-in isolating switch disclosed by the present invention is as figure 1 , figure 2 , image 3 As shown, it includes a three-phase insulation box arranged in the box, and each phase insulation box is equipped with a circuit breaker and a disconnector, and the disconnector is asynchronously linked with the circuit breaker through a transmission mechanism. The box body 13 is a closed metal shell filled with normal pressure SF6 gas. The box body also contains an independent insulating box 4, a direct-acting circuit breaker, a direct-acting isolating switch, and a transmission mechanism part of the series circuit breaker and isolating switch. , the circuit breaker and the isolating switch are placed horizontally in the insulating box 4. The circuit breaker includes: an arc extinguishing chamber 10, a copper guide rod 11 for the sta...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a pole-mounted circuit breaker with a built-in isolation switch, and belongs to the technical field of power generation, power transformation or power distribution. A circuit breaker switch, an isolating switch and a transmission mechanism of the isolating switch are arranged in the same sealed box body, the circuit breaker switch comprises an arc extinguishing chamber, anarc extinguishing chamber static end copper guide rod and a contact spring assembly, the isolating switch comprises a moving contact and a static contact, the transmission mechanism comprises a synchronizing shaft, an output crank arm, an insulating pull rod and a rotating assembly, and the whole main loop is loaded in an insulating box. The problems that a common pole-mounted circuit breaker is small in opening distance and cannot serve as a reliable fracture, and an isolation switch and a pole-mounted load switch cannot remove short-circuit faults are solved, rapid mechanical linkage of thecircuit breaker and an isolation knife is achieved, and the condition of achieving the rapid reclosing function is achieved.
Description
technical field [0001] The invention discloses a pole-mounted circuit breaker with a built-in isolating switch, relates to intelligent power distribution equipment, and belongs to the technical field of power generation, power transformation or power distribution. Background technique [0002] With the comprehensive promotion of smart grid construction, it is very important to improve the reliability and power supply quality of urban distribution network. The construction of urban power distribution requires that the conductors should not be exposed, the wires should be sheathed wires, and the pole-mounted switches should use cable outlets. The outdoor isolating switch and pole-mounted circuit breaker used together are the most widely used switchgear in the urban distribution network. How to improve the existing pole-mounted circuit breaker to meet the construction requirements of the urban distribution network is an urgent problem to be solved . [0003] At present, in th...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
12 Jan 2021
Publication
CN112216550A
- IPC
- H01H33/52; H01H33/42; H01H33/53
- CPC
- H01H33/52; H01H33/42; H01H33/53
- Inventors
- 顾学明; 王杰