CN205582770U - A pole-mounted circuit breaker with dual power supply switching - Google Patents

Abstract

The utility model discloses a circuit breaker on two switching of power's post, including voltage transformer YH, the circuit breaker, the PT channel -section steel, the PT cross arm, switching of power relay XB, the wire, the terminal row, the energy storage motor, the separating brake coil, closing coils, pass through the PT channel -section steel and the top at the circuit breaker is fixed to the PT cross arm with voltage transformer YH, insert the input contact of HC transition to two switching of power relay XB with voltage transformer YH's secondary wiring end through the boat, cause with two switching of power relay XB's output contact that the dead end of terminal row is young, serve the welding of wire one end in separating brake coil and closing coils's the wiring that exposes, the other end is fixed at corresponding opposite side dead end of terminal row with energy storage motor wire end simultaneously, can realize that two switching of power give energy storage and the power supply of divide -shut brake return circuit, can realize the dual supply uninterrupted power supply, power supply reliability is improved.

Description

A pole-mounted circuit breaker with dual power supply switching

technical field

The utility model relates to a pole-mounted circuit breaker with dual power supply switching.

Background technique

At present, when the circuit breaker is equipped with a voltage transformer, the incoming high-voltage cable of the high-voltage line is first connected to the primary end of the voltage transformer, and then connected to the incoming terminal of the circuit breaker, and the outgoing terminal of the circuit breaker is connected to the outgoing high-voltage cable of the high-voltage line. If the voltage transformer fails, the circuit breaker will lose its working power, and the voltage transformer must be removed and replaced before power can be transmitted. Therefore, the workload is very large, and it takes a long time to cut off the power, which greatly reduces the power consumption. reliability of power supply.

Utility model content

The purpose of the utility model is to provide a pole-mounted circuit breaker with dual power supply switching, which can realize uninterrupted power supply with dual power supply switching, and improve the reliability of power supply.

In order to achieve the above object, the technical scheme of the utility model is as follows:

A pole-mounted circuit breaker for dual power switching, including voltage transformer YH (1), circuit breaker (2), aviation plug HC (3), cable (4), PT channel steel (5), PT cross arm ( 6), power switching relay XB (7) wire (8), terminal block (9), energy storage motor (10), opening coil (11), closing coil (12), characterized by: voltage transformer YH (1) Fix the circuit breaker (2) through PT channel steel (5) and PT cross arm (6), and connect the secondary terminals of the two voltage transformers YH (1) through the outdoor dedicated RVVP shielded cable The line (4) leads to the aviation plug HC (3) of the circuit breaker (2), and the aviation plug HC (3) transitions to the input contact of the dual power switching relay XB (7) inside the circuit breaker (2), and the power switching relay The XB (7) power output contact leads to the terminal block (9) through the wire (8), and then the energy storage motor (10), opening coil (11) and closing coil (12) lead to the corresponding contact of the terminal block (9), The dual power supply can be switched to supply power to the energy storage and the opening and closing circuit, and the uninterrupted power supply of the dual power supply can be realized, which improves the reliability of power supply.

The pole-mounted circuit breaker with dual power supply switching is characterized in that: the energy storage motor (10), the opening coil (11) and the closing coil (12) are all installed on the electric mechanism (13) inside the switch.

The beneficial results of the utility model are: compared with the prior art, the utility model has an uninterrupted power supply with dual power supply switching, even if one of the voltage transformers fails, it will not cause a power outage of the line, and in order to improve the reliability of the grid power supply , play a positive role in promoting.

Description of drawings

Accompanying drawing 1 is the front view of the integrated installation of the circuit breaker and the voltage transformer of the utility model.

Accompanying drawing 2 is the top view of the integrated installation of the circuit breaker and the voltage transformer of the utility model.

Accompanying drawing 3 is the internal structure diagram of the circuit breaker housing of the utility model.

Accompanying drawing 4 is the circuit diagram of the circuit breaker power circuit component connection of the utility model.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

In the figure: 1. Voltage transformer YH 2. Circuit breaker 3. Aviation plug HC 4. Cable 5. PT channel steel 6. PT crossarm 7. Power switching relay XB 8. Wire 9. Terminal block 10. Energy storage motor 11. Opening coil 12, closing coil 13, electric mechanism

As shown in Figure 1-2, a pole-mounted circuit breaker with dual power supply switching, two voltage transformers YH (1) are fixed on the PT channel steel (5), and then fixed on the circuit breaker through the PT cross arm (6) Above the circuit breaker (2), connect the secondary terminals of the two voltage transformers YH (1) to the aviation plug HC (3) of the circuit breaker (2) through the cable (4), and connect the secondary output of the voltage transformer Transition to the inside of the circuit breaker housing.

As shown in Figure 3-4, a pole-mounted circuit breaker with dual power supply switching, the secondary contact of the voltage transformer on the aviation plug HC (3) is connected to the secondary contact of the dual power supply switching relay XB (7) through a wire (8) The input contact connects the output contact of the dual power supply switching relay XB (7) to the empty terminal of the terminal block (9), and the energy storage motor (10), opening coil (11) and closing coil are installed on the electric mechanism (13) (12), solder one end of the wire (8) to the exposed terminal of the opening coil (11) and the closing coil (12), and fix the other end to the terminal block (9) at the same time as the end of the energy storage motor (10) wire. The corresponding empty terminal on the other side can realize dual power supply switching to supply power to the energy storage and opening and closing circuits, and can realize dual power supply uninterrupted power supply, which improves the reliability of power supply.

Claims (2)

1. a pole-mounted circuit breaker for dual power supply switching, is characterized in that: voltage transformer YH(1) horizontal by PT channel-section steel (5) and PT Load (6) is fixed on chopper (2), by voltage transformer YH(1) power supply output contact by cable (4) and air plug HC (3) the dual power supply switching relay XB(7 that chopper (2) is internal is caused) input contact, by power transfer relay XB(7) electricity Source output contact causes in terminal block (9) by wire (8), then by energy storage motor (10), switching winding (11) and closing coil (12) the corresponding contact of terminal block (9) is caused.

The pole-mounted circuit breaker of a kind of dual power supply the most according to claim 1 switching, it is characterised in that: energy storage motor (10), Switching winding (11) and closing coil (12) are installed on switch internal motor drive mechanism (13).