Resistance-capacitance box with AC switch indication circuit operating state monitoring
A technology that represents the circuit and working state, applied in the direction of electronic circuit testing, measuring electricity, measuring devices, etc., can solve problems such as blanks, and achieve the effect of reducing safety pressure, ensuring driving safety, and improving labor productivity
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Embodiment 1
[0013] figure 1 The shown RC box with AC switch indicating circuit working status monitoring has a resistance loop, and the resistance loop has a resistor R, and one end of the resistor R passes through the first current sensor H10 and connects with the outside of the RC box through the first terminal respectively. One end of the external resistor Rx is connected to one end of the relay DBJ, the other end of the external resistor Rx is connected to the cathode of the diode Z, the anode of the diode Z is connected to the B-phase winding of the switch motor, and the other end of the relay DBJ is connected to the A-phase winding of the switch motor , the C-phase winding of the turnout motor is connected to one end of the secondary of the transformer DB1, and the three-phase winding of the turnout motor is connected in a Y shape; the other end of the resistor R is connected to the other end of the secondary of the transformer DB1 through the second terminal, and the first current ...
Embodiment 2
[0023] figure 2 As shown in the RC box with an AC turnout indicating circuit working status monitoring, there are two resistance circuits, and each resistance circuit has a resistance, which are respectively the first resistance R1 and the second resistance R2, and one end of the first resistance R1 After being connected in parallel with the second resistor R2, it is connected to one end of the secondary side of the transformer DB1 through the third terminal, and the other end of the first resistor R1 and the other end of the second resistor R2 respectively pass through the first current sensor H10 and the second current sensor H11 After parallel connection, connect one end of the external resistance Rx outside the RC box through the fourth terminal, the other end of the external resistance Rx is connected to the cathode of the diode Z, the anode of the diode Z is connected to the B-phase winding of the switch motor, and one end of the relay DBJ It is connected to the A-phase...
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