CN110943454A - Three-phase power supply distributor with detection control - Google Patents
Three-phase power supply distributor with detection control Download PDFInfo
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- CN110943454A CN110943454A CN201911351864.7A CN201911351864A CN110943454A CN 110943454 A CN110943454 A CN 110943454A CN 201911351864 A CN201911351864 A CN 201911351864A CN 110943454 A CN110943454 A CN 110943454A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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Abstract
The invention relates to a three-phase power supply distributor with detection control, which comprises a case box, wherein the case box consists of a front panel, a top plate, a rear panel, two side plates and a bottom plate, the front panel, the bottom plate and the two side plates are integrated, the top plate and the rear panel are connected into a whole, and the two side plates are respectively provided with a fixing piece; the left side of front panel is equipped with power input connector, the centre is equipped with signal output connector, the right side is equipped with three overcurrent fuse from left to right in proper order, is equipped with three power output socket on the rear panel from left to right respectively, be equipped with control circuit board in the machine case box, the last components and parts that use control module as the core that are equipped with of control circuit board. The three-phase power distributor with detection control adopts the single-chip microprocessor to detect, judge and control the electrical parameters and the working state of the three-phase input power supply and the shunt single-phase output power supply, thereby ensuring the safe, stable and reliable work of the power distribution device and the electric equipment.
Description
Technical Field
The invention relates to the field of power distribution of industrial machine rooms, in particular to a three-phase power distributor with detection control.
Background
The power distributor is a power distribution socket used in an industrial machine room, can provide power for a plurality of electric equipment, has the characteristics of firm appearance, reliable installation and durable internal use compared with a common civil power socket, and can adapt to the working environment of long-term electrification and heavy current load; the power distributor is widely applied to the use occasions such as a power distribution machine room, a communication machine room, a monitoring machine room, a control machine room and the like; especially in recent years, the socket products of the power supply distributor are developed towards the direction of intellectualization and networking, and bring convenience to the system needing power supply output control; in many power utilization occasions, the working current of many power utilization equipment is large, if a single-phase power supply is used for supplying power, the phase balance of a power supply system is possibly influenced, and therefore one-way three-phase power supply is required to be converted into three-way single-phase power supply to be used as output power supply; however, when the power distributor adopting the three-phase power supply conversion is in use, the input power supply may be abnormal, or overcurrent or short circuit of the output load may occur, which may cause the power distributor to break down, and may cause a power-tripping accident to the power distribution system or damage to the electric equipment in case of serious, so that a reliable power supply detection method is adopted, and the problem to be solved by the three-phase power distribution system is avoided by adopting the equipment with too high manufacturing cost.
Disclosure of Invention
In order to solve the technical problems, the invention provides a three-phase power distributor with detection control, which adopts a 19-inch standard cabinet structure, is matched with three-phase alternating current power input to provide three paths of single-phase power output, adopts a single-chip microprocessor to detect, judge and control the electrical parameters and the working state of an input power supply and an output power supply, and can provide a stable working power supply only when the input power supply and electric equipment work normally, thereby ensuring the safe, stable and reliable work of a power distribution device and the electric equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows: a three-phase power distributor with detection control comprises a chassis box, wherein the chassis box consists of a front panel, a top plate, a rear panel, two side plates and a bottom plate, and the front panel, the bottom plate and the two side plates are combined into a whole to form a chassis base part; the top plate and the rear panel are connected into a whole to form an upper cover part of the case; the left and right surfaces of the two side plates are respectively provided with a fixing piece, the two side plates are arranged at the front positions of the two sides of the case through fixing piece screws, the fixing pieces are in a right-angle bending shape, and the surface flush with the front plate is provided with three fixing holes; the left side of the front panel is provided with a power input connector, the middle of the front panel is provided with a signal output connector, and the right side of the front panel is sequentially provided with an A-path overcurrent protector, a B-path overcurrent protector and a C-path overcurrent protector from left to right; the rear panel is provided with a power output socket A, a power output socket B and a power output socket C from left to right; a control circuit board is arranged in the case box, a control module, a power supply module, a three-phase voltage detection module, an A-path current detection module, a B-path current detection module, a C-path current detection module, an A-path output controller, a B-path output controller and a C-path output controller are arranged on the control circuit board, the A-path output controller is provided with a control coil J1 and a pair of normally open contacts J1-1 and J1-2, the B-path output controller is provided with a control coil J2 and a pair of normally open contacts J2-1 and J2-2, and the C-path output controller is provided with a control coil J3 and a pair of normally open contacts J3-1 and J3-2; the A-path current detection module is provided with a detection coil CT1 and a signal converter Tr1, the B-path current detection module is provided with a detection coil CT2 and a signal converter Tr2, and the C-path current detection module is provided with a detection coil CT3 and a signal converter Tr 3; the A-way power output socket, the B-way power output socket and the C-way power output socket all comprise four C13 type sockets which are connected in parallel, and all comprise L, N and PE electrodes.
The control module comprises a microprocessor MCU unit, a voltage detection interface, a current detection interface, a power control interface and a communication interface; the voltage detection interface is provided with three signal terminals of u1, u2 and u3 and a common terminal of G1; the current detection interface is provided with three signal terminals i1, i2 and i3 and a common terminal G2; the power control interface is provided with three signal terminals k1, k2 and k3 and a common terminal G3; the communication interface comprises two RS485 serial terminals a and b; the voltage detection interface, the current detection interface, the power control interface and the communication interface are all connected with the MCU unit.
The power input connector comprises a power input plug and a power input socket, and input socket screws are arranged on two sides of the power input socket and fix the power input socket on the left side of the front surface of the case box; the power input socket is internally provided with 6 output pins, wherein the four output pins on the left side are La, Lb, Lc and N three-phase power electrode pins, one on the rightmost side is a PE grounding pin, and the other is an NC standby pin; the power input plug is connected with the external interface of the power input socket in a matching and inserting mode.
The signal output connector comprises a signal output plug and a signal output socket, and output socket screws are arranged on two sides of the signal output socket and fix the signal output socket on the middle position in front of the case; the signal output plug is provided with an output plug screw, and the output plug screw is screwed after the signal output plug is inserted in the signal output socket, so that the signal output connectors are mutually fixed; the signal output socket is internally provided with 16 terminals, wherein a pair of direct current power supply output terminals Udc, three pairs of voltage signal terminals U1, U2 and U3, three pairs of current signal terminals I1, I2 and I3 and a pair of communication terminals RS485 are respectively arranged from left to right; the output plug is connected with the external interface of the output socket in a matching and plugging way.
La, Lb, Lc and N three-phase power supply electrode pins in the input socket are respectively connected with the input sides of the power supply module and the voltage detection module, wherein the La electrode firstly passes through a detection coil CT1 of the A-path current detection module, then is connected in series with a normally open contact J1-1 of an A-path output controller with a control coil J1 and a series A-path overcurrent protector, and is connected with L electrodes of four parallel sockets of the A-path power supply output socket; the Lb electrode firstly passes through a detection coil CT2 of the B-path current detection module, then is connected in series with a normally open contact J2-1 of a B-path output controller with a control coil J2 and a B-path overcurrent protector, and then is connected with L electrodes of four parallel sockets of a B-path power output socket; the Lc electrode firstly passes through a detection coil CT3 of the C-path current detection module, then is connected in series with a normally open contact J3-1 of a C-path output controller with a control coil J3 and a C-path overcurrent protector, and then is connected with L electrodes of four parallel sockets of the C-path power output socket.
The output side of the power supply module is respectively connected with a pair of Udc direct current power terminals in the control module, the three-phase voltage detection module, the A path current detection module, the B path current detection module, the C path current detection module, the A path output controller, the B path output controller, the C path output controller and the signal output socket, and provides a low-voltage direct current working power supply.
The output signal ends of the three-phase voltage detection module are respectively connected with the U1, U2, U3 and G1 ends of a voltage detection interface in the control module, and are simultaneously connected with three pairs of U1, U2 and U3 voltage signal terminals in a signal output socket to provide detection signals of three-phase power supply voltage.
The three signal output ends of the signal converter Tr1 of the A-path current detection module, the signal converter Tr2 of the B-path current detection module and the signal converter Tr3 of the C-path current detection module are respectively connected with the current detection interface in the control module and the three pairs of I1, I2 and 13 current signal terminals in the signal output socket, and provide three current signals output by the single-phase power supply.
And k1, k2, k3 and G3 in the power control interface in the control module are respectively connected with a control coil J1 of the A-path output controller, a control coil J2 of the B-path output controller and a control coil J3 of the C-path output controller, and control action levels are respectively provided.
And a communication interface in the control module is connected with a communication interface in the signal output socket to carry out RS485 serial port communication.
The invention has the beneficial effects that: the invention relates to a three-phase power supply distributor with detection control, which is characterized in that an input power supply voltage detection device and an output current detection device are added in a case of a common power supply distributor, the voltage stable state is judged by monitoring an input three-phase power supply, the working current range of a power load is judged by monitoring three paths of output power supplies, and when the input power supply is abnormal or any one path of the three paths of output loads has a fault, a corresponding power supply circuit can be automatically disconnected, so that the stable work of a power supply system and power equipment is ensured, and the safe operation and the reliable work of power distribution equipment of a machine room are ensured.
Drawings
Fig. 1 is a schematic structural diagram of an overall structure of a three-phase power distributor with detection control according to an embodiment;
FIG. 2 is a schematic circuit diagram of a three-phase power distributor with detection control according to an embodiment;
wherein: 1-cabinet box, 1 a-front panel, 1B-top panel, 1C-rear panel, 1 d-two side panels, 1 e-bottom panel, 2-power input connector, 2 a-power input plug, 2B-power input socket, 2B 1-input socket screw, 3-signal output connector, 3 a-signal output plug, 3a 1-output plug screw, 3B-signal output socket, 3B 1-output socket screw, 3B 2-dc power output terminal, 3B 3-voltage signal terminal, 3B 4-current signal terminal, 3B 5-communication terminal, 4-a-path overcurrent fuse, 5-B-path overcurrent fuse, 6-C-path overcurrent fuse, 7-fixing piece, 7 a-fixing hole, 7B-a fixing piece screw, 8-a control circuit board, 8 a-a control module, 8a 1-a microprocessor MCU unit, 8a 2-a voltage detection interface, 8a 3-a current detection interface, 8a 4-a power supply control interface, 8a 5-a communication interface, 8B-a power supply module, 8C-three-phase voltage detection module, 8d-A circuit current detection module, 8e-B circuit current detection module, 8f-C circuit current detection module, 8g-A circuit output controller, 8h-B circuit output controller, 8i-C circuit output controller, 9-A circuit power supply output socket, 10-B circuit output socket and 11-C circuit power supply output socket.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
Examples
Fig. 1 is a schematic diagram of a whole structure of a power distributor with detection control for three phases according to the present embodiment; a three-phase power distributor with detection control comprises a case box 1, wherein the case box is composed of a front panel 1a, a top plate 1b, a rear panel 1c, two side plates 1d and a bottom plate 1e, and the front panel, the bottom plate and the two side plates are integrated into a case bottom shell part; the top plate and the rear plate are connected into a whole to form an upper cover part of the case, and the bottom case part of the case and the upper cover part of the case are covered and assembled together to form a whole case; the left and right surfaces of the two side plates are respectively provided with a fixing plate 7, the two side plates are arranged at the front positions of the two sides of the case through fixing plate screws 7b, the fixing plates are in a right-angle bending shape, and the surface flush with the front plate is provided with three fixing holes 7a for fixing with a guide rail in the cabinet through screws during assembly; the left side of the front panel is provided with a power input connector 2 for inputting a three-phase power supply, the power input connector comprises a power input plug 2a and a power input socket 2b, two sides of the power input socket are provided with input socket screws 2b1, and the power input socket is fixed at the position of the left side of the front face of the case box; the middle of the front panel is provided with a signal output connector 3 for providing an output detection signal for external equipment to receive, the signal output connector comprises a signal output plug 3a and a signal output socket 3b, output socket screws 3b1 are arranged at two sides of the signal output socket, and the signal output socket is fixed at the front middle position of the case box; output plug screws 3a1 are arranged at two ends of the signal output plug, and the output plug screws are screwed after the signal output plug is plugged in a signal output socket, so that the signal output connectors are mutually fixed; the right part of the front panel is sequentially provided with an A-path overcurrent protector 4, a B-path overcurrent protector 5 and a C-path overcurrent protector 6 from left to right for overcurrent and short-circuit protection of a single-phase output power supply, a button is arranged outside the overcurrent protector, a communicated contact is arranged inside the overcurrent protector, the maximum current of 20A can be borne, when an external electric load is subjected to overcurrent or short circuit, the internal contact can be immediately disconnected, the external button can pop out for 5mm, and after the fault of the external electric load is eliminated, the button can be pressed inwards to restore the communication of the internal contact; the rear panel is provided with an A-way power output socket 9, a B-way power output socket 10 and a C-way power output socket 11 from left to right respectively, the A-way power output socket, the B-way power output socket and the C-way power output socket are used for power distribution output of three single-phase power supplies, four C13 type sockets are connected in parallel in each output, and the inner L, N and the PE electrodes are correspondingly connected; and a control circuit board 8 is arranged in the case and used for detecting and controlling the working state of the power supply distributor.
Fig. 2 is a schematic circuit diagram of a power distributor with detection control for three phases according to an embodiment; as can be seen from the figure, the control circuit board 8 is provided with a control module 8a, a power supply module 8B, a three-phase voltage detection module 8C, an a-path current detection module 8d, a B-path current detection module 8e, a C-path current detection module 8f, an a-path output controller 8g, a B-path output controller 8h and a C-path output controller 8i, and the control module 8a includes a microprocessor MCU unit 8a1, a voltage detection interface 8a2, a current detection interface 8a3, a power supply control interface 8a4 and a communication interface 8a 5; the voltage detection interface is provided with three signal ends of u1, u2 and u3 and a G1 common end and is used for receiving voltage signals sent by the three-phase voltage detection module; the current detection interface is provided with three signal ends i1, i2 and i3 and a common end G2 and is used for receiving current detection signals sent by the three current modules; the power control interface is provided with three signal terminals k1, k2 and k3 and a common terminal G3 and is used for outputting control signals; the communication interface comprises two serial terminals a and b of RS485, and is used for signal transmission communication with external equipment; the voltage detection interface, the current detection interface, the power supply control interface and the communication interface are all connected with a microprocessor MCU unit, and the microprocessor MCU unit controls the operation of the whole power supply distributor through programming; the power input socket is internally provided with 6 output pins, wherein the four output pins on the left side are La, Lb, Lc and N three-phase power electrode pins, one on the rightmost side is a PE grounding pin, and the other is an NC standby pin; the power input plug is connected with an external interface of the power input socket in a matching and inserting mode and used for connecting an external three-phase power circuit; the signal output socket is internally provided with 16 terminals, namely a direct-current power supply output terminal 3b2 (a pair, Udc), a voltage signal terminal 3b3 (three pairs, U1, U2 and U3), a current signal terminal 3b4 (three pairs, I1, I2 and I3) and a communication terminal 3b5 (a pair, RS485) from left to right; the output plug is connected and plugged on an external interface of the output socket in a matching way, except for communication signals, the output signals are analog signals and can be directly provided for other external equipment to be collected and used through a connecting wire; the A-path output controller is provided with a control coil J1 and a pair of normally open contacts J1-1 and J1-2, the B-path output controller is provided with a control coil J2 and a pair of normally open contacts J2-1 and J2-2, the C-path output controller is provided with a control coil J3 and a pair of normally open contacts J3-1 and J3-2, and the electric conduction of each control coil is controlled by the drive of a power supply control interface; the A-path current detection module is provided with a detection coil CT1 and a signal converter Tr1, the B-path current detection module is provided with a detection coil CT2 and a signal converter Tr2, the C-path current detection module is provided with a detection coil CT3 and a signal converter Tr3, the detection coils are sleeved in corresponding power supply lines, and the signal converter converts the detected current into an analog quantity signal and transmits the analog quantity signal to the current detection interface.
As shown in fig. 2, the circuit connections of various accessories can be seen from the figure, the three-phase power supply electrode pins La, Lb, Lc and N in the input socket are respectively connected with the input sides of the power supply module and the voltage detection module, wherein the La electrode firstly passes through the detection coil CT1 of the current detection module of the a path, then is connected in series with the normally open contact J1-1 of the output controller of the a path with the control coil J1 and the overcurrent protector of the a path, and then is connected with the L electrodes of the four parallel sockets of the output socket of the a path; the Lb electrode firstly passes through a detection coil CT2 of the B-path current detection module, then is connected in series with a normally open contact J2-1 of a B-path output controller with a control coil J2 and a B-path overcurrent protector, and then is connected with L electrodes of four parallel sockets of a B-path power output socket; the Lc electrode firstly passes through a detection coil CT3 of the C-path current detection module, then is connected in series with a normally open contact J3-1 of a C-path output controller with a control coil J3 and a C-path overcurrent protector, and then is connected with L electrodes of four parallel sockets of a C-path power output socket; the output side of the power supply module is respectively connected with the control module, the three-phase voltage detection module, the A-path current detection module, the B-path current detection module, the C-path current detection module, the A-path output controller, the B-path output controller, the C-path output controller and a pair of Udc direct current power terminals in the signal output socket and provides a low-voltage direct current working power supply, and the power supply module is a power supply converter for simultaneously inputting three-phase power supplies, so that the direct current power supplies are output as long as any one phase in the three-phase power supplies is electrified; the output end of the three-phase voltage detection module is respectively connected with the U1, U2, U3 and G1 ends of a voltage detection interface in the control module, and is simultaneously connected with three pairs of U1, U2 and U3 voltage signal terminals in a signal output socket to provide analog quantity signals of three-phase power supply voltage after detection and conversion; the three signal output ends of the signal converter Tr1 of the A-path current detection module, the signal converter Tr2 of the B-path current detection module and the signal converter Tr3 of the C-path current detection module are respectively connected with a current detection interface in the control module and three pairs of I1, I2 and I3 current signal terminals in a signal output socket, and provide three analog quantity signals of the current of the single-phase power supply output line after detection and conversion; k1, k2, k3 and G3 in a power control interface in the control module are respectively connected with a control coil J1 of the A-path output controller, a control coil J2 of the B-path output controller and a control coil J3 of the C-path output controller to respectively provide control action levels, and when the control coils are powered, corresponding normally open contacts are closed and switched on; and a communication interface in the control module is connected with a communication interface in the signal output socket, and can perform RS485 serial port communication after being connected with an external background management system.
In summary, when the power distributor with detection control in the invention works, firstly, a three-phase power line is connected to a power input plug, then, a power device is connected, an input power is detected under the control of an internal microprocessor MCU, when the working voltage of the input power meets the design requirement, the output of three single-phase power sources is respectively switched on, and the working power sources of the three single-phase power sources are detected, if the output current exceeds a set range, a corresponding output controller is driven through a power control interface, the failed output power source is immediately switched off, and if the output current is over-current or short-circuited, a set over-current protector automatically switches off the output of the current, so as to ensure the safety of the power device; the microprocessor MCU controls the on output to test in a timing mode during the power off period, and immediately returns to the power on output after detecting that the output load fault is eliminated; the data exchange can be carried out with external equipment through the communication interface when the detection control is carried out in the local machine, and low-voltage analog quantity current and voltage detection signals can be transmitted on a signal output plug of the local machine and directly supplied to the external equipment for sampling and receiving, so that the signal conversion of communication decoding is avoided, the use of a client is facilitated, and the safe, stable and reliable work of a power distribution device and electric equipment is ensured.
The above embodiments should not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent transformations fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a three-phase area detects power distributor of control which characterized in that: the chassis comprises a chassis box, wherein the chassis box consists of a front panel, a top plate, a rear panel, two side plates and a bottom plate, and the front panel, the bottom plate and the two side plates are integrated into a chassis bottom shell part; the top plate and the rear panel are connected into a whole to form an upper cover part of the case; the left and right surfaces of the two side plates are respectively provided with a fixing piece, the two side plates are arranged at the front positions of the two sides of the case through fixing piece screws, the fixing pieces are in a right-angle bending shape, and the surface which is flush with the front plate is provided with 3 fixing holes; the left side of the front panel is provided with a power input connector, the middle of the front panel is provided with a signal output connector, and the right side of the front panel is sequentially provided with an A-path overcurrent protector, a B-path overcurrent protector and a C-path overcurrent protector from left to right; the rear panel is provided with a power output socket A, a power output socket B and a power output socket C from left to right; a control circuit board is arranged in the case box, a control module, a power supply module, a three-phase voltage detection module, an A-path current detection module, a B-path current detection module, a C-path current detection module, an A-path output controller, a B-path output controller and a C-path output controller are arranged on the control circuit board, the A-path output controller is provided with a control coil J1 and a pair of normally open contacts J1-1 and J1-2, the B-path output controller is provided with a control coil J2 and a pair of normally open contacts J2-1 and J2-2, and the C-path output controller is provided with a control coil J3 and a pair of normally open contacts J3-1 and J3-2; the A-path current detection module is provided with a detection coil CT1 and a signal converter Tr1, the B-path current detection module is provided with a detection coil CT2 and a signal converter Tr2, and the C-path current detection module is provided with a detection coil CT3 and a signal converter Tr 3; the A-way power output socket, the B-way power output socket and the C-way power output socket all comprise four C13 type sockets which are connected in parallel, and all comprise L, N and PE electrodes.
2. The power distributor with detection control of three phases as claimed in claim 1, wherein: the control module comprises a microprocessor MCU unit, a voltage detection interface, a current detection interface, a power control interface and a communication interface; the voltage detection interface is provided with three signal terminals of u1, u2 and u3 and a common terminal of G1; the current detection interface is provided with three signal terminals i1, i2 and i3 and a common terminal G2; the power control interface is provided with three signal terminals k1, k2 and k3 and a common terminal G3; the communication interface comprises two RS485 serial terminals a and b; the voltage detection interface, the current detection interface, the power control interface and the communication interface are all connected with the MCU unit.
3. A three-phase power distributor with detection control as claimed in claim 2, wherein: the power input connector comprises a power input plug and a power input socket, and input socket screws are arranged on two sides of the power input socket and fix the power input socket on the left side of the front surface of the case box; the power input socket is internally provided with 6 output pins, wherein the four output pins on the left side are La, Lb, Lc and N three-phase power electrode pins, one on the rightmost side is a PE grounding pin, and the other is an NC standby pin; the power input plug is connected with the external interface of the power input socket in a matching and inserting mode.
4. A three-phase power distributor with detection control as claimed in claim 3, wherein: the signal output connector comprises a signal output plug and a signal output socket, and output socket screws are arranged on two sides of the signal output socket and fix the signal output socket on the middle position in front of the case; the signal output plug is provided with an output plug screw, and the output plug screw is screwed after the signal output plug is inserted in the signal output socket, so that the signal output connectors are mutually fixed; the signal output socket is internally provided with 16 terminals, wherein a pair of direct current power supply output terminals Udc, three pairs of voltage signal terminals U1, U2 and U3, three pairs of current signal terminals I1, I2 and I3 and a pair of communication terminals RS485 are respectively arranged from left to right; the output plug is connected with the external interface of the output socket in a matching and plugging way.
5. The power distributor with detection control of claim 4, wherein: la, Lb, Lc and N three-phase power supply electrode pins in the input socket are respectively connected with the input sides of the power supply module and the voltage detection module, wherein the La electrode firstly passes through a detection coil CT1 of the A-path current detection module, then is connected in series with a normally open contact J1-1 of an A-path output controller with a control coil J1 and a series A-path overcurrent protector, and is connected with L electrodes of four parallel sockets of the A-path power supply output socket; the Lb electrode firstly passes through a detection coil CT2 of the B-path current detection module, then is connected in series with a normally open contact J2-1 of a B-path output controller with a control coil J2 and a B-path overcurrent protector, and then is connected with L electrodes of four parallel sockets of a B-path power output socket; the Lc electrode firstly passes through a detection coil CT3 of the C-path current detection module, then is connected in series with a normally open contact J3-1 of a C-path output controller with a control coil J3 and a C-path overcurrent protector, and then is connected with L electrodes of four parallel sockets of the C-path power output socket.
6. The power distributor with detection control of three phases as claimed in claim 5, wherein: the output side of the power supply module is respectively connected with a pair of Udc direct current power terminals in the control module, the three-phase voltage detection module, the A path current detection module, the B path current detection module, the C path current detection module, the A path output controller, the B path output controller, the C path output controller and the signal output socket, and provides a low-voltage direct current working power supply.
7. The power distributor with detection control of claim 6, wherein: the output signal ends of the three-phase voltage detection module are respectively connected with the U1, U2, U3 and G1 ends of a voltage detection interface in the control module, and are simultaneously connected with three pairs of U1, U2 and U3 voltage signal terminals in a signal output socket to provide voltage detection signals of a three-phase power supply.
8. The power distributor with detection control of three phases as claimed in claim 7, wherein: the three signal output ends of the signal converter Tr1 of the A-path current detection module, the signal converter Tr2 of the B-path current detection module and the signal converter Tr3 of the C-path current detection module are respectively connected with the current detection interface in the control module and the three pairs of I1, I12 and I3 current signal terminals in the signal output socket, and provide three paths of current detection signals output by the single-phase power supply.
9. A three-phase power distributor with detection control as claimed in claim 2, wherein: and k1, k2, k3 and G3 in the power control interface in the control module are respectively connected with a control coil J1 of the A-path output controller, a control coil J2 of the B-path output controller and a control coil J3 of the C-path output controller, and control action levels are respectively provided.
10. A three-phase power distributor with detection control as claimed in claims 1 and 2, wherein: and a communication interface in the control module is connected with a communication interface in the signal output socket to carry out RS485 serial port communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911351864.7A CN110943454A (en) | 2019-12-24 | 2019-12-24 | Three-phase power supply distributor with detection control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911351864.7A CN110943454A (en) | 2019-12-24 | 2019-12-24 | Three-phase power supply distributor with detection control |
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| CN110943454A true CN110943454A (en) | 2020-03-31 |
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| CN201911351864.7A Withdrawn CN110943454A (en) | 2019-12-24 | 2019-12-24 | Three-phase power supply distributor with detection control |
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2019
- 2019-12-24 CN CN201911351864.7A patent/CN110943454A/en not_active Withdrawn
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Application publication date: 20200331 |