Monitoring outdoor pole-mounted circuit breaker

Abstract

The utility model relates to a monitorable outdoor pole-mounted circuit breaker, which comprises a pole and is characterized in that the pole-mounted circuit breaker, a high-voltage capacitor, an isolating switch and a measurement and control terminal are mounted on the pole; the isolation switch is connected to the pole-mounted circuit breaker, and the measurement and control terminal is connected to the pole-mounted circuit breaker. The pole-mounted circuit breaker is provided with a pole-mounted circuit breaker opening and closing mechanism and an energy storage mechanism; an isolating switch opening and closing mechanism is arranged on the isolating switch; the high-voltage capacitor is respectively connected to the pole-mounted circuit breaker, the energy storage mechanism and the measurement and control terminal; the measurement and control terminal comprises a communication module which is in wireless connection with a distribution network chip single-chip microcomputer. The measurement and control terminal remotely monitors a pole-mounted circuit breaker and a circuit breaker opening and closing mechanism. The pole-mounted circuit breaker is combined with the isolating switch, the high-voltage capacitor provides working voltage, the measuring terminal remotely monitors opening and closing of the pole-mounted circuit breaker to break the load, and the outer pole-mounted circuit breaker is small in size, light in weight and convenient and safe to construct.

Description

Technical Field

[0001] The utility model belongs to the field of high-voltage power distribution, and in particular relates to a monitorable outdoor pole-mounted circuit breaker. Background Art

[0002] A pole-mounted circuit breaker is a circuit breaker installed and operated on a pole. It is a switchgear that can cut off or connect a line under normal circumstances, and when a short circuit occurs in the line, it can manually or automatically switch the faulty line through operation or the action of a relay protection device. Pole-mounted circuit breakers are mainly used for segmented switching, control, and protection of distribution line sections, and can open and close short-circuit currents. In current distribution lines, circuit breakers mainly use outdoor AC high-voltage intelligent vacuum circuit breakers, which have fault detection, protection control, and communication functions.

[0003] The existing technology generally uses voltage transformers to transform voltage to power measuring instruments and relay protection devices to measure the voltage, power and electric energy of the line. Outdoor pole-mounted circuit breakers are mostly installed in a suspended manner. Installers need to climb the pole to connect the wires and install multiple voltage transformers on both sides of the circuit breaker. The voltage transformers are large and heavy, and it is extremely inconvenient for construction workers to carry them to high altitudes. Suspended operations are also very unsafe, and it is urgent to solve the problem from a technical and functional perspective. Summary of the invention

[0004] The problem to be solved by the utility model is that the existing installation method of the voltage transformer of the outdoor pole-mounted circuit breaker is that during the outdoor pole suspended high-altitude operation, the installer needs to climb the pole many times to connect the wires, and the voltage transformer is large and heavy, which is inconvenient and unsafe. A monitorable outdoor pole-mounted circuit breaker is provided, which is combined with the pole-mounted circuit breaker and the isolating switch, and the high-voltage capacitor provides the working voltage. The measuring terminal remotely monitors the opening and closing of the pole-mounted circuit breaker to disconnect the load. The outer pole-mounted circuit breaker is small in size and light in weight, and the construction is convenient and safe.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a monitorable outdoor pole-mounted circuit breaker, comprising a pole, mainly a pole-mounted circuit breaker, a high-voltage capacitor, an isolating switch, and a measurement and control terminal are installed on the pole;

[0006] The isolating switch is connected to the pole-mounted circuit breaker, and the measurement and control terminal is connected to the pole-mounted circuit breaker;

[0007] The pole-mounted circuit breaker is provided with a circuit breaker opening and closing mechanism and an energy storage mechanism;

[0008] The isolating switch is provided with an isolating switch opening and closing mechanism;

[0009] The high-voltage capacitors are respectively connected to the column circuit breaker, the energy storage mechanism, and the measurement and control terminal;

[0010] The measurement and control terminal includes a communication module that maintains a wireless connection with the distribution network chip microcomputer. The measurement and control terminal remotely monitors the pole-mounted circuit breaker and the circuit breaker opening and closing mechanism, and transmits the user's load current information in real time.

[0011] Preferably, the high-voltage capacitor is connected to the measurement and control terminal via an aviation plug and aviation plug wiring, and the measurement and control terminal is connected to the pole-mounted circuit breaker via an aviation plug and aviation plug wiring.

[0012] The advantages and positive effects of the utility model are:

[0013] 1. The utility model can monitor the outdoor pole-mounted circuit breaker. Since the circuit breaker is installed on the outdoor pole, the isolating switch is connected to the pole-mounted circuit breaker, and the high-voltage capacitor is respectively connected to the pole-mounted circuit breaker, the energy storage mechanism, and the measurement and control terminal. The high-voltage capacitor is used to provide the pole-mounted circuit breaker energy storage mechanism and the circuit breaker opening and closing voltage, and the distribution network measurement and control terminal working voltage. The high-voltage capacitor is used for power supply, which saves space, is lighter in weight, and is easy to install.

[0014] 2. The utility model is a monitorable outdoor pole-mounted circuit breaker. Since the circuit breaker is installed on an outdoor pole, the circuit breaker opening and closing mechanism and energy storage mechanism arranged thereon are the last barrier for 10kV line protection. The energy storage mechanism provides kinetic energy after pulling up the spring. When the kinetic energy of the spring is released manually, the kinetic energy is converted into mechanical energy, so that the internal contacts of the pole-mounted circuit breaker are engaged to form a passage, which is closing. The mechanical energy is released again, and the internal contacts of the pole-mounted circuit breaker are disconnected to form a circuit break, which is opening. The electric opening and closing has a high-voltage capacitor to provide a 220V working voltage for the closing coil inside the circuit breaker. The kinetic energy and mechanical energy are released by the attraction of the closing coil to realize electric opening and closing. Therefore, the opening and closing operations of the manual, electric and remote-controlled circuit breaker opening and closing mechanisms can be realized.

[0015] 3. The utility model is a monitorable outdoor pole-mounted circuit breaker. Since the isolating switch is installed at the front end of the pole-mounted circuit breaker on the outdoor pole, the incoming line contact is connected to the 10KV power supply line. The isolating switch is mechanically operated. After the switch is opened, the disconnection distance between the contacts can be clearly seen by the naked eye. The safety risk to the user is greatly reduced. Because the contacts of the pole-mounted circuit breaker are sealed in a vacuum tube, the contact disconnection point cannot be seen by the naked eye after the switch is opened. The isolating switch does not allow opening and closing with large load electricity, while the pole-mounted circuit breaker can be opened and closed with large load current, and the functions of the two can complement each other. The isolating switch avoids the danger of inspection and maintenance of the power outage equipment at the user's back end, is more convenient to operate, and saves cables.

[0016] 4. The utility model can monitor the outdoor pole-mounted circuit breaker. Since the measurement and control terminal is installed on the pole and connected to the pole-mounted circuit breaker, the measurement and control terminal has a 5G communication module inside to maintain a wireless connection with the distribution network chip microcontroller and transmit the user's load current information in real time. Once the current value exceeds the warning value, the fault current value will remotely disconnect the user's pole-mounted circuit breaker and isolate the accident point until the user finds the cause and deals with it, preventing the accident from expanding to affect the entire 10kV power supply line. It plays the role of monitoring and controlling the circuit breaker, and can realize remote monitoring of the opening and closing of the pole-mounted circuit breaker, providing more comprehensive and intelligent protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic front view of the structure of a monitorable outdoor pole-mounted circuit breaker according to the utility model;

[0018] Figure 2 The utility model is a schematic diagram of a structure top view of a monitorable outdoor pole-mounted circuit breaker.

[0019] 1-pole, 2-measurement and control terminal, 3-circuit breaker opening and closing mechanism, 4-isolating switch opening and closing mechanism, 5-high-voltage capacitor, 6-aviation plug, 7-aviation plug wiring, 8-energy storage mechanism, 9-pole circuit breaker, 10-isolating switch. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to specific embodiments.

[0021] like Figure 1 , 2 As shown, a monitorable outdoor pole-mounted circuit breaker 9 is shown, where pole 1 is generally an electric pole. Construction workers pre-install the outdoor pole-mounted circuit breaker 9 components including the pole-mounted circuit breaker 9, high-voltage capacitor 5, disconnector 10, measurement and control terminal 2, circuit breaker opening and closing mechanism 3, disconnector opening and closing mechanism 4 and support frame, climb the pole 1 to a height of 10 meters, install the support frame in the air, and install the outdoor pole-mounted circuit breaker 9 components on the support frame.

[0022] A monitorable outdoor pole-mounted circuit breaker 9 is provided. An isolating switch 10 is connected to the pole-mounted circuit breaker 9, a measurement and control terminal 2 is connected to the pole-mounted circuit breaker 9, a circuit breaker opening and closing mechanism 3 and an energy storage mechanism 8 are installed on the pole-mounted circuit breaker 9, and an isolating switch opening and closing mechanism 4 is installed on the isolating switch 10. The circuit breaker opening and closing mechanism 3 provides kinetic energy after the energy storage mechanism 8 pulls up the spring. When the kinetic energy of the spring is manually released, the kinetic energy is converted into mechanical energy, so that the internal contacts of the pole-mounted circuit breaker are engaged, and a passage is formed, which is closing. The mechanical energy is released again, and the internal contacts of the pole-mounted circuit breaker 9 are disconnected, and a circuit is disconnected, which is opening. The electric opening and closing has a high-voltage capacitor 5 to provide a 220V working voltage to the closing coil inside the circuit breaker. The electric opening and closing is realized by releasing kinetic energy and mechanical energy through the attraction of the closing and opening coil. Before closing, the circuit breaker needs the energy storage mechanism 8 to store energy, and is used in conjunction with the measurement and control terminal 2. The pole-mounted circuit breaker 9 can be operated electrically and manually. The disconnector opening and closing mechanism 4 is mechanically operated, and the disconnector 10 is opened and closed by pulling up the supporting connecting rod of the disconnector 10.

[0023] The high-voltage capacitor 5 is respectively connected to the pole circuit breaker 9, the energy storage mechanism 8, and the measurement and control terminal 2. The high-voltage capacitor 5 provides the working voltage of the pole circuit breaker 9, the energy storage mechanism 8, and the measurement and control terminal 2; the high-voltage capacitor 5 is connected to the measurement and control terminal 2 through the aviation plug 6 and the aviation plug wiring 7, and the measurement and control terminal 2 is connected to the pole circuit breaker 9 through the aviation plug 6 and the aviation plug wiring 7. The measurement and control terminal 2 includes a 5G communication module and a distribution network chip microcontroller. The measurement and control terminal 2 remotely monitors the pole circuit breaker 9 on the circuit breaker opening and closing mechanism 3, and transmits the user's load current information in real time.

[0024] The outdoor pole-mounted circuit breaker 9 is used as a line switch and is a barrier for 10kV line protection. The measurement and control terminal 2 can monitor the actual current indication of the user in real time and transmit it to the distribution network automation monitoring system through the 5G network. Once the current value exceeds the warning value, the fault current value will remotely disconnect the pole-mounted circuit breaker 9 of the user and isolate the user. At this time, the user cannot close the pole-mounted circuit breaker 9 on the spot until the user finds the cause and handles it. After the current returns to normal, the measurement and control terminal 2 issues a closing command and the isolating switch closing and opening mechanism 4 automatically closes. Prevent the stable operation of the entire line from being affected by a user's own fault on the 10kV line of the distribution network. Ensure the high reliability of the power supply system.

[0025] The above embodiments of the utility model are described in detail, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the utility model should still fall within the scope of this patent.

Claims

1. A monitorable outdoor pole-mounted circuit breaker, comprising a pole, characterized in that: A pole circuit breaker, a high-voltage capacitor, an isolating switch, and a measurement and control terminal are installed on the pole; The isolating switch is connected to the pole-mounted circuit breaker, and the measurement and control terminal is connected to the pole-mounted circuit breaker; The pole-mounted circuit breaker is provided with a circuit breaker opening and closing mechanism and an energy storage mechanism; The isolating switch is provided with an isolating switch opening and closing mechanism; The high-voltage capacitors are respectively connected to the column circuit breaker, the energy storage mechanism, and the measurement and control terminal; The measurement and control terminal includes a communication module that maintains a wireless connection with the distribution network chip microcomputer. The measurement and control terminal remotely monitors the pole-mounted circuit breaker and the circuit breaker opening and closing mechanism, and transmits the user's load current information in real time.

2. A monitorable outdoor pole-mounted circuit breaker according to claim 1, characterized in that: The high-voltage capacitor is connected to the measurement and control terminal through an aviation plug and aviation plug wiring, and the measurement and control terminal is connected to the pole-mounted circuit breaker through an aviation plug and aviation plug wiring.

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