Time-controlled light-controlled residual electric power supply and method of application thereof in hybrid lighting systems

Abstract

The application discloses a time-controlled light-controlled residual electric power supply and an application method thereof in a mixed lighting system, and relates to the technical field of power supply and lighting control. The power supply is connected in parallel with the output live line of a light-controlled and time-controlled switch to jointly control an AC contactor attraction coil; the normally closed contact of the AC contactor is connected in series with a discharge resistor to be connected across the output side, thereby forming a passive discharge loop. The application method comprises the steps of differential matching configuration, time-sharing complementary control and anti-drift protection, can match the discharge resistance value according to the residual capacitance of mixed loads such as aviation obstruction lights and street lamps, realizes preferential power supply in abnormal weather, automatically eliminates residual electric charge to prolong the service life of a precision module, and can use an indicator lamp in combination with an air switch to perform off-box fault diagnosis and non-stop bypass isolation. The application effectively solves the single control failure problem and meets the safety troubleshooting demand of the mixed system.

Description

Technical Field

[0001] This invention relates to the field of power supply and lighting control technology, and more specifically, to a time-controlled and light-controlled residual power supply and its application method in a hybrid lighting system. Background Technology

[0002] Aviation safety and nighttime lighting rely on aviation obstruction lights and streetlights. The switching on and off of these lights is typically controlled by their own light-controlled switches, while streetlights usually use time-controlled switches, employing a single control method.

[0003] Aviation obstruction lights, installed on tower spires and rooftops in extremely harsh environments of extreme cold and heat, require uninterrupted power to their flickering and light control circuits. Prolonged operation in such harsh conditions can cause the operating points of electronic components to drift, leading to control failure and necessitating timely maintenance. Streetlights, controlled by time-controlled switches, require manual switching if abnormal lighting occurs during the off-time, potentially missing the optimal time to turn them on. Furthermore, residual power remains in the control circuits of aviation obstruction lights, streetlights, and other lights after they are turned off, requiring timely elimination to prevent adverse effects. The light and time controls on aviation obstruction lights and streetlights can only control themselves, not multiple lights; other equipment requiring power from time and light controls faces similar challenges.

[0004] With the advancement of modern urban construction and aviation safety standards, numerous scenarios require the integration and unified management of various types of lighting equipment, such as aviation obstruction lights and streetlights, into the same hybrid lighting system. Existing single-function power supply boxes exhibit several shortcomings when handling mixed loads: First, the residual capacitance of different types of controlled lighting fixtures (especially when high-precision aviation lights and ordinary streetlights are mixed) varies, lacking a differentiated discharge matching mechanism, which easily leads to operating point drift of high-precision modules; second, fault diagnosis is difficult, as a single branch failure often necessitates a complete power outage and system opening for repair; and third, it cannot flexibly implement differentiated start / stop priority control. Therefore, a novel power supply application logic and method are urgently needed to fill this gap. Summary of the Invention

[0005] The present invention provides a time-controlled and light-controlled residual power supply that can solve the above-mentioned problems and provide a stable and reliable power supply for time-controlled and light-controlled warning lighting and other equipment.

[0006] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0007] A time-controlled and light-controlled residual power supply includes a power input terminal block XT1, a power output terminal block XT2, a light-controlled switch KG, a time-controlled switch KT, an AC contactor KM, and a parallel discharge resistor R.

[0008] The AC contactor KM includes a coil, normally open contacts, and normally closed contacts;

[0009] The input neutral wire of the light-controlled switch KG is connected to the output neutral wire of the time-controlled switch KT, and the output live wire is connected to the output live wire of the time-controlled switch KT. The output terminal of the time-controlled switch KT is connected to the coil of the AC contactor KM.

[0010] The power supply is input through the power input terminal XT1 and connected to the input terminal of the light control switch KG, the input terminal of the time control switch KT, and the normally open contact input side of the AC contactor KM; the normally open contact output side of the AC contactor KM is connected to the power output terminal XT2.

[0011] The normally closed contact output side of the AC contactor KM is connected to the live wire of the normally open contact output side of the AC contactor KM, the normally closed contact input side of the AC contactor KM is connected to one end of the parallel discharge resistor R, and the other end of the parallel discharge resistor R is connected to the neutral wire of the normally open contact output side of the AC contactor KM, so as to form a passive discharge circuit.

[0012] Furthermore, the time-controlled and light-controlled residual current power supply also includes a leakage current protector RCD and a second circuit breaker QF2, a third circuit breaker QF3, and a fourth circuit breaker QF4;

[0013] The power input terminal XT1 is connected to the input terminal of the residual current device (RCD), and the output terminal of the RCD is connected to the input terminals of the second circuit breaker (QF2), the third circuit breaker (QF3), and the fourth circuit breaker (QF4), respectively.

[0014] The output terminal of the second circuit breaker QF2 is connected to the input terminal of the light-controlled switch KG;

[0015] The output terminal of the third circuit breaker QF3 is connected to the input terminal of the time control switch KT;

[0016] The output terminal of the fourth circuit breaker QF4 is connected to the normally open contact input side of the AC contactor KM.

[0017] The time-controlled and light-controlled residual current power supply also includes a first circuit breaker QF1 and a surge protector SPD; the output terminal of the residual current device RCD is also connected to the input terminal of the first circuit breaker QF1, the output terminal of the first circuit breaker QF1 is connected to the input terminal of the surge protector SPD, and the output terminal of the surge protector SPD is grounded.

[0018] This solution combines residual current devices (RCDs), multiple independent circuit breakers, and surge protectors to isolate input protection, lightning and overvoltage protection, and short-circuit / overload protection for each control branch. Even if a single branch malfunctions, power outage maintenance can be easily performed, greatly improving the system's safety and anti-interference capabilities in harsh environments such as extreme cold, heat, and high-altitude towers.

[0019] Furthermore, the time-controlled and light-controlled residual power supply also includes a voltage and current meter PVA and a current sensing coil L; the output terminal of the leakage current protector RCD is connected to the voltage input terminal of the voltage and current meter PVA; the output live wire of the fourth circuit breaker QF4 passes through the current sensing coil L, and the two ends of the current sensing coil L are connected to the current input terminal of the voltage and current meter PVA.

[0020] The time-controlled and light-controlled residual power supply also includes a first indicator LED1, a second indicator LED2, and a third indicator LED3; the first indicator LED1 is connected to the output terminal of the leakage current protector RCD; the second indicator LED2 is connected to the output terminal of the time-controlled switch KT and connected to the coil of the AC contactor KM; the third indicator LED3 is connected to the normally open contact output side of the AC contactor KM.

[0021] This solution cleverly incorporates voltmeters, ammeters, current sensing coils, and multi-level LED indicator lights. The first, second, and third indicator lights reflect the real-time status of the main power input, control circuit output, and contactor engagement output, respectively. By observing the changes in the lights and the meter data on the panel, maintenance personnel can quickly and accurately determine which component—the light control, time control, contactor, or downstream load—is malfunctioning, greatly improving troubleshooting efficiency.

[0022] Furthermore, the time-controlled and light-controlled residual power supply also includes a power supply box, which includes a mounting base plate and a box door panel; the power input terminal XT1, leakage current protector RCD, various circuit breakers, current sensing coil L, AC contactor KM, parallel discharge resistor R, and power output terminal XT2 are fixedly mounted on the mounting base plate; the indicator light, time control switch KT, and voltage and current meter PVA are fixedly mounted on the box door panel.

[0023] This invention also provides a method for applying a time-controlled, light-controlled, residual power supply in a hybrid lighting system. The method utilizes the aforementioned time-controlled, light-controlled, residual power supply. The hybrid lighting system includes various controlled luminaires with different withstand voltage characteristics connected to the power output terminal XT2. The application method includes the following steps:

[0024] Step S1: Obtain the withstand voltage characteristics and power of the controlled lamps connected in the hybrid lighting system, and match the resistance value of the parallel discharge resistor R according to the system residual equivalent capacitance, so that the discharge time constant of the passive discharge circuit adapts to the residual charge release requirements of different controlled lamps.

[0025] Step S2: Set the normal nighttime lighting time window of the time control switch KT; outside the normal nighttime lighting time window, if the ambient light intensity drops to a set threshold due to abnormal weather, the output live wire of the light control switch KG will preferentially output a control signal to the coil of the AC contactor KM, so that the system provides complementary power supply to the safety warning load in the controlled lamp across the time window.

[0026] Step S3: For controlled lighting fixtures that have been operating for a long time, when the AC contactor KM stops supplying power due to the lack of output from both the time control switch KT and the light control switch KG, the passive discharge circuit is automatically connected between the live and neutral lines of the downstream equipment by utilizing the automatic closing of its normally closed contacts. This promptly consumes the residual charge accumulated in the control circuit and prevents the voltage operating point of the electronic components in the controlled lighting fixture from drifting.

[0027] Furthermore, the application method also includes modular fault isolation and bypass steps: when a controlled lamp in the back end fails or the system is abnormal, the fault location is determined based on the combination of the on / off states of the first indicator LED1, the second indicator LED2, and the third indicator LED3; if the fault is determined to be from the light control or time control circuit, the maintenance personnel disconnect the second circuit breaker QF2 or the third circuit breaker QF3 to take the fault control branch out of operation while maintaining power supply protection, thereby achieving online troubleshooting and bypass operation without stopping the machine.

[0028] Furthermore, in step S1, the controlled lighting fixtures include at least aviation obstruction lights and streetlights; the matching principle of the resistance value is to ensure that after the AC contactor KM is disconnected, the passive discharge circuit can specifically consume the residual electrical energy in the control circuits of the aviation obstruction lights and streetlights, so as to extend the service life of the strobe and light control precision circuits in the aviation obstruction lights.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] (1) By connecting the output live wires of the light control switch and the time control switch in parallel to control the coil of the AC contactor, the "OR" logic power supply is realized. During the set time period for turning off the lights, if there is an abnormality in the external lighting (such as darkening due to severe weather), the light control switch can automatically step in to turn on the coil power supply, and can supply power to the back-end equipment without manual intervention, reducing the risk of missing the opportunity and the cost of manual maintenance.

[0031] (2) Innovatively, the normally closed contact of the AC contactor is connected in series with a parallel discharge resistor. When the power supply is stopped normally (the AC contactor is de-energized and the normally open contact is opened), the normally closed contact automatically closes, so that the discharge resistor is connected across the live and neutral wires of the downstream equipment to form a passive discharge circuit. This can consume the residual power in the downstream equipment and control circuit in a timely and automatic manner, effectively prevent the operating point of the components from drifting, and extend the service life of high-precision equipment such as aviation obstruction lights.

[0032] (3) The small current of the time control and light control switch is used to drive the coil of the AC contactor, and then the main contact of the AC contactor carries the high power output, which breaks through the power limitation of the original light control / time control switch itself. It can stably control multiple high-power lamps at the same time without changing the existing lighting equipment.

[0033] (4) A differentiated equipment configuration and anti-drift protection method was proposed. By matching the discharge resistor value in a targeted manner, it is made to adapt to the residual charge release requirements of mixed loads such as aviation obstruction lights and street lights, transforming the original passive circuit characteristics into an active life extension protection strategy, effectively preventing the voltage operating point drift of the internal modules of long-term standby equipment.

[0034] (5) An innovative modular non-stop troubleshooting operation and maintenance mode was developed. By combining multi-level indicator lights with multiple independent circuit breakers, a set of application methods was developed that can identify the source of the fault without opening the box and can directly isolate the faulty branch through the bypass circuit breaker, which greatly improves the operation and maintenance efficiency and the overall fault tolerance of the system in harsh outdoor environments.

[0035] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, embodiments of the present invention are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is the electrical schematic diagram of the time-controlled and light-controlled residual power supply described in the embodiment of the present invention;

[0038] Figure 2 This is a flowchart illustrating the application method of the time-controlled and light-controlled residual power supply in a hybrid lighting system according to an embodiment of the present invention. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0040] like Figure 1 As shown, this invention provides a specific embodiment of a time-controlled and light-controlled residual power supply, the overall structure of which includes a power supply box and electrical components installed inside and outside the power supply box. From the perspective of electrical principle and structural connection, the power supply mainly consists of a power input terminal XT1, a leakage current protector RCD, a first circuit breaker QF1, a second circuit breaker QF2, a third circuit breaker QF3, a fourth circuit breaker QF4, a first indicator LED1 (e.g., a red indicator), a surge protector SPD, a light-controlled switch KG, a time-controlled switch KT, a voltmeter and ammeter PVA, a second indicator LED2 (e.g., a green indicator), a current sensing coil L, a third indicator LED3 (e.g., a green indicator), an AC contactor KM (which has an internal coil, normally open contacts and normally closed contacts), a parallel discharge resistor R, and a power output terminal XT2, etc.

[0041] The power input terminal XT1 is connected to the input terminal of the residual current device (RCD). The output terminal of the RCD is connected to the input terminals of the first circuit breaker QF1, the second circuit breaker QF2, the third circuit breaker QF3, and the fourth circuit breaker QF4, respectively, and is also connected to the voltage input terminal of the voltmeter / ammeter PVA and the first indicator light LED1. The first indicator light LED1 is used to indicate whether the main power input is normal.

[0042] To achieve lightning strike overvoltage protection, the output terminal of the first circuit breaker QF1 is connected to the surge protector SPD, and the output terminal of the surge protector SPD is grounded.

[0043] In the control circuit, this invention employs parallel control logic that complements time control and light control. The output terminal of the second circuit breaker QF2 is connected to the input terminal of the light control switch KG, and the output terminal of the third circuit breaker QF3 is connected to the input terminal of the time control switch KT. The input neutral wire of the light control switch KG is connected to the output neutral wire of the time control switch KT, and the output live wire is connected to the output live wire of the time control switch KT (i.e., implementing a logical "OR" relationship). The combined output live wire is connected to the coil of the AC contactor KM and the second indicator LED2. The input and output neutral wires of the light control switch KG and the time control switch KT are either directly connected or share a neutral wire. The second indicator LED2 is used to indicate whether the control circuit has sent a working signal to the AC contactor KM.

[0044] In the main power supply and residual current elimination circuit, the output terminal of the fourth circuit breaker QF4 is connected to the normally open contact input side of the AC contactor KM. The normally open contact output side of the AC contactor KM is connected to the third indicator LED3 and the power output terminal XT2. The output live wire of the fourth circuit breaker QF4 passes through the current sensing coil L, and the two ends of the current sensing coil L are connected to the current input terminal of the voltmeter / ammeter PVA to monitor the output current in real time. The third indicator LED3 is used to indicate whether the main contacts of the AC contactor KM are normally engaged and outputting.

[0045] Crucially, the passive discharge circuit's structural connections are as follows: the normally closed contact output side of AC contactor KM is connected to the live wire of its normally open contact output side; the normally closed contact input side of AC contactor KM is connected to one end of a parallel discharge resistor R; and the other end of the parallel discharge resistor R is connected to the neutral wire of the normally open contact output side of AC contactor KM. The resistance value of this parallel discharge resistor R is matched according to the actual voltage and the power of the downstream equipment.

[0046] To constitute a complete invention, the aforementioned components are rationally distributed within the power supply box. The power input terminal block XT1, residual current device (RCD), first circuit breaker QF1, second circuit breaker QF2, third circuit breaker QF3, fourth circuit breaker QF4, surge protector SPD, current sensing coil L, AC contactor KM, parallel discharge resistor R, and power output terminal block XT2 are fixed to the mounting plate of the power supply box using screws, studs, or mounting rails. Wires of appropriate hardness and softness matching the input and output power are used for wiring connections. The power supply is connected through pre-drilled holes in the box, or the terminal blocks can be installed on the outside of the box.

[0047] The first indicator light LED1, the time control switch KT, the voltmeter and ammeter PVA, the second indicator light LED2, and the third indicator light LED3 are installed on the door panel of the power supply box using methods such as drilling holes and fixing with screws. Maintenance personnel can view the voltage, current, and time settings through the door panel without opening the box, and can visually determine whether the power input, temperature / light control switch, AC contactor, and downstream electrical equipment are working properly by observing the changes in the indicator lights.

[0048] The working principle of this embodiment is as follows:

[0049] (1) Complementary power supply logic

[0050] Install the probe of the light control switch KG in a safe, unobstructed location with normal lighting. During the period when the time control switch KT is off, if there is an abnormality in the external light (such as a sudden darkening during the day, requiring the activation of aviation obstruction lights, etc.), the light control switch KG will sense this and activate. Its output live wire and the output neutral wire of QF2 will power the coil of the AC contactor KM, causing the contactor KM to operate and supply power to the downstream equipment. Similarly, when both the time control switch KT and the light control switch KG are activated simultaneously, it is equivalent to connecting the two switches in parallel to power the downstream equipment, without any electrical conflict. This achieves mutual complementarity and backup between time control and light control. Simultaneously, by using a small signal from the control element to control the AC contactor KM, which then delivers a high-power current and voltage, simultaneous control of multiple lights can be easily achieved.

[0051] (2) Automatic residual power elimination logic

[0052] When the AC contactor KM is energized, its main contacts (normally open contacts) close to supply power to the downstream equipment. Simultaneously, its normally closed contacts open, disconnecting the passive discharge circuit formed by the parallel discharge resistor R. This ensures normal power supply without consuming energy. When the control circuit stops outputting signals and the AC contactor KM stops operating, its main contacts (normally open contacts) open to stop supplying power, while its normally closed contacts reopen. At this time, the normally closed contacts, the parallel discharge resistor R, and the live and neutral wires downstream of the output terminals automatically form a "passive discharge circuit," rapidly consuming residual energy in the downstream equipment circuits and promptly eliminating residual current. This provides excellent protection for the precision electronic components of the downstream equipment.

[0053] Furthermore, this invention possesses strong applicability and scalability. If the downstream electrical equipment requires a three-phase power supply, simply replace the leakage current protector RCD, the first circuit breaker QF1, the surge protector SPD, the voltmeter / ammeter PVA, and the AC contactor KM in this embodiment with corresponding three-phase components. In daily use, if the second circuit breaker QF2 is manually disconnected, this device becomes a purely time-controlled residual current elimination power supply; if the third circuit breaker QF3 is disconnected, it becomes a purely light-controlled residual current elimination power supply; if the parallel discharge resistor R in the passive discharge circuit is disconnected, and the circuit breakers of the two controlled circuits are disconnected or their timings are set to be consistent, it can be used as a regular power supply box to meet various operating conditions.

[0054] Based on the aforementioned hardware structure and working principle, this invention also provides a specific embodiment of the application method of a time-controlled, light-controlled, residual power elimination power supply in a hybrid lighting system. When this power supply is applied to a hybrid lighting system containing various controlled luminaires with different withstand voltage characteristics and power ratings, such as aviation obstruction lights and streetlights, to address the differentiated needs of the two types of luminaires in terms of start / stop priority, residual power protection, and fault diagnosis, such as... Figure 2As shown, its specific application and maintenance steps are as follows:

[0055] (1) Differentiated equipment configuration

[0056] In the initial stage of system integration, the types of controlled lighting fixtures to be integrated (such as aviation obstruction lights and streetlights) are identified, and the overall residual equivalent capacitance of the system and the residual voltage tolerance threshold of the backend equipment are assessed. Based on this equivalent capacitance, the resistance value of the parallel discharge resistor R inside the power supply box is calculated and matched accordingly. The matching principle is to ensure that after the AC contactor KM is disconnected, the discharge time constant of the passive discharge circuit is sufficient to release the residual electrical energy in the control circuits of the aviation obstruction lights and streetlights within a safe time margin, accurately adapting to the residual charge release requirements of different devices.

[0057] (2) Time-sharing and zone-based complementary control

[0058] Set the normal nighttime lighting time window for the time control switch KT (e.g., 6:00 PM to 6:00 AM). Outside this normal lighting time window (e.g., during daytime), if only high-priority warning devices such as aviation obstruction lights need power, adjust the illuminance threshold of the light control switch KG based on the safety warning devices. If abnormal weather (e.g., a sudden darkening of the daytime due to a storm) causes the ambient illuminance to drop below the set threshold, the light control switch KG will actively intervene, prioritizing the output of a live wire signal to drive the coil of the AC contactor KM, achieving complementary power supply and emergency start across time windows.

[0059] (3) Long life anti-drift protection

[0060] For long-standby power supply equipment such as aviation obstruction lights, when the power supply time window ends and the ambient light level is normal, neither the time control switch KT nor the light control switch KG outputs a signal. The AC contactor KM is de-energized, its main contacts open to stop power supply, and the normally closed contacts close simultaneously. At this time, the passive discharge circuit automatically bridges the live and neutral wires of the downstream equipment, automatically and quickly dissipating the residual charge accumulated in the control circuit after each trigger shutdown. This step effectively prevents the voltage operating point of the light control / strobe module inside the controlled lighting fixture from drifting, greatly extending the service life of high-precision electronic components.

[0061] (4) Modular fault isolation and bypass

[0062] During normal system operation, if a lamp malfunctions or the system malfunctions, maintenance personnel can perform modular fault diagnosis without opening the enclosure by using the on / off states of the first indicator LED1, the second indicator LED2, and the third indicator LED3 on the enclosure door panel. For example: if LED1 is off, it indicates a main power input fault or leakage protection activation; if LED1 is on but LED2 is off during power supply, it indicates a fault in the light-controlled or time-controlled control circuit; if both LED1 and LED2 are on but LED3 is off, or the PVA voltmeter shows no current, it indicates an open circuit in the contactor body or downstream wiring.

[0063] When a control circuit fault is confirmed, maintenance personnel perform bypass operations: if the light-controlled switch KG branch is faulty, the second circuit breaker QF2 is directly disconnected; if the time-controlled switch KT branch is faulty, the third circuit breaker QF3 is directly disconnected. This operation maintains the system's safe power supply protection while taking the faulty branch out of operation, degrading the system to pure time-controlled or pure light-controlled power supply operation, thus achieving online troubleshooting and fault isolation without shutting down the system.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A time-controlled and light-controlled residual power supply, characterized in that, Includes power input terminal block XT1, power output terminal block XT2, light control switch KG, time control switch KT, AC contactor KM, and parallel discharge resistor R; The AC contactor KM includes a coil, normally open contacts, and normally closed contacts; The input neutral wire of the light-controlled switch KG is connected to the output neutral wire of the time-controlled switch KT, and the output live wire is connected to the output live wire of the time-controlled switch KT. The output terminal of the time-controlled switch KT is connected to the coil of the AC contactor KM. The main power supply is input through the power input terminal XT1 and connected to the input terminal of the light control switch KG, the input terminal of the time control switch KT, and the normally open contact input side of the AC contactor KM; the normally open contact output side of the AC contactor KM is connected to the power output terminal XT2. The normally closed contact output side of the AC contactor KM is connected to the live wire of the normally open contact output side of the AC contactor KM, the normally closed contact input side of the AC contactor KM is connected to one end of the parallel discharge resistor R, and the other end of the parallel discharge resistor R is connected to the neutral wire of the normally open contact output side of the AC contactor KM, so as to form a passive discharge circuit.

2. The time-controlled and light-controlled residual power supply according to claim 1, characterized in that, It also includes a residual current device (RCD) and a second circuit breaker (QF2), a third circuit breaker (QF3), and a fourth circuit breaker (QF4); The power input terminal XT1 is connected to the input terminal of the residual current device (RCD), and the output terminal of the RCD is connected to the input terminals of the second circuit breaker (QF2), the third circuit breaker (QF3), and the fourth circuit breaker (QF4), respectively. The output terminal of the second circuit breaker QF2 is connected to the input terminal of the light-controlled switch KG; The output terminal of the third circuit breaker QF3 is connected to the input terminal of the time control switch KT; The output terminal of the fourth circuit breaker QF4 is connected to the normally open contact input side of the AC contactor KM.

3. The time-controlled and light-controlled residual power supply according to claim 2, characterized in that, It also includes a first circuit breaker QF1 and a surge protector SPD; the output terminal of the residual current device RCD is also connected to the input terminal of the first circuit breaker QF1, the output terminal of the first circuit breaker QF1 is connected to the input terminal of the surge protector SPD, and the output terminal of the surge protector SPD is grounded.

4. The time-controlled and light-controlled residual power supply according to claim 2, characterized in that, It also includes a voltmeter / ammeter (PVA) and a current sensing coil (L); the output terminal of the leakage current device (RCD) is connected to the voltage input terminal of the voltmeter / ammeter (PVA); the output live wire of the fourth circuit breaker (QF4) passes through the current sensing coil (L), and the two ends of the current sensing coil (L) are connected to the current input terminal of the voltmeter / ammeter (PVA).

5. The time-controlled and light-controlled residual power supply according to claim 2, characterized in that, It also includes a first indicator LED1, a second indicator LED2, and a third indicator LED3; the first indicator LED1 is connected to the output terminal of the leakage current protector RCD; the second indicator LED2 is connected to the output terminal of the time control switch KT and connected to the coil of the AC contactor KM; the third indicator LED3 is connected to the normally open contact output side of the AC contactor KM.

6. The time-controlled and light-controlled residual power supply according to claim 5, characterized in that, It also includes a power supply box, which includes a mounting base plate and a box door panel; the power input terminal XT1, leakage current protector RCD, second circuit breaker QF2, third circuit breaker QF3, fourth circuit breaker QF4, current sensing coil L, AC contactor KM, parallel discharge resistor R, and power output terminal XT2 are fixedly mounted on the mounting base plate; the indicator light, time control switch KT, and voltage and current meter PVA are fixedly mounted on the box door panel.

7. The time-controlled and light-controlled residual power supply according to claim 2, characterized in that, When the connected back-end electrical equipment is a three-phase device, the residual current device RCD, the second circuit breaker QF2, the third circuit breaker QF3, the fourth circuit breaker QF4, and the AC contactor KM all use three-phase components.

8. A method for applying a time-controlled and light-controlled residual power supply in a hybrid lighting system, characterized in that, The time-controlled light-controlled residual power supply is the time-controlled light-controlled residual power supply as described in any one of claims 1-7; the hybrid lighting system includes various controlled luminaires with different withstand voltage characteristics connected to the power output terminal XT2; the application method includes the following steps: Step S1: Obtain the withstand voltage characteristics and power of the controlled lamps connected in the hybrid lighting system, and match the resistance value of the parallel discharge resistor R according to the system residual equivalent capacitance, so that the discharge time constant of the passive discharge circuit adapts to the residual charge release requirements of different controlled lamps. Step S2: Set the normal nighttime lighting time window of the time control switch KT; outside the normal nighttime lighting time window, if the ambient light intensity drops to a set threshold due to abnormal weather, the output live wire of the light control switch KG will preferentially output a control signal to the coil of the AC contactor KM, so that the system provides complementary power supply to the safety warning load in the controlled lamp across the time window. Step S3: For controlled lighting fixtures that have been operating for a long time, when the AC contactor KM stops supplying power due to the lack of output from both the time control switch KT and the light control switch KG, the passive discharge circuit is automatically connected between the live and neutral lines of the downstream equipment by utilizing the automatic closing of its normally closed contacts. This promptly consumes the residual charge accumulated in the control circuit and prevents the voltage operating point of the electronic components in the controlled lighting fixture from drifting.

9. The application method of the time-controlled and light-controlled residual power supply in a hybrid lighting system according to claim 8, characterized in that, When a controlled lamp in the backend malfunctions or the system malfunctions, the location of the fault is determined based on the combination of the on / off states of the first indicator LED1, the second indicator LED2, and the third indicator LED3. If the fault is determined to be from the light control or time control circuit, the maintenance personnel disconnect the second circuit breaker QF2 or the third circuit breaker QF3 to maintain power supply protection while taking the fault control branch out of operation, thus achieving online troubleshooting and bypass operation without shutting down the system.

10. The application method of the time-controlled and light-controlled residual power supply according to claim 8 in a hybrid lighting system, characterized in that, In step S1, the controlled lighting fixtures include at least aviation obstruction lights and streetlights; the matching principle of the resistance value is to ensure that after the AC contactor KM is disconnected, the passive discharge circuit can specifically consume the residual electrical energy in the control circuits of the aviation obstruction lights and streetlights, so as to extend the service life of the strobe and light control precision circuits in the aviation obstruction lights.

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