CN113839400B - Automatic three-phase load unbalance adjusting device - Google Patents
Automatic three-phase load unbalance adjusting device Download PDFInfo
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- CN113839400B CN113839400B CN202111272061.XA CN202111272061A CN113839400B CN 113839400 B CN113839400 B CN 113839400B CN 202111272061 A CN202111272061 A CN 202111272061A CN 113839400 B CN113839400 B CN 113839400B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 230000008859 change Effects 0.000 claims description 26
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 9
- 230000006872 improvement Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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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
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/083—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for three-phase systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/207—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage also responsive to under-voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
- H02H3/253—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage for multiphase applications, e.g. phase interruption
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/34—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention discloses an automatic three-phase load unbalance adjusting device, which is structurally provided with a body, a front door, a foot seat, a vent and a top cover plate, wherein the front door is arranged in front of the body, the foot seat is fixedly connected to the bottom of the body, a current control button is rotated by a person to set rated current according to requirements, a current transformer is convenient for adjusting protection values according to set current by overcurrent action characteristics under the control cooperation of the current control button, current on a current changing device can transmit current information to an analysis controller through a current receiving end, the analysis controller analyzes and processes the current, a judging device further judges whether a current system is in an unbalance state, a conversion value of current required when the current balance is achieved is calculated, the current is transmitted to a phase interruption chamber, an automatic adjusting system changes along with the current, and a step regulator can select reasonable leakage action protection gear according to leakage current of an actual circuit, so that the phase interruption chamber can play a role of protection under the condition of under the undervoltage and overvoltage.
Description
Technical Field
The invention belongs to the technical field of advanced reactive power compensation, and particularly relates to an automatic three-phase load unbalance adjusting device.
Background
The electric energy is energy source using electricity as power, and is composed of various voltage and power transmission and distribution lines, and can be used for generating electricity, transmitting electricity, distributing electricity and the like, and the electric power systems are mutually matched, so that the circuit system forms a power grid with large functions, and plays an extremely important role in the life production of people.
Based on the above findings of the present inventors, the existing three-phase load unbalance automatic adjustment device has the following disadvantages:
in a national grid company and a low-voltage distribution network system, a large number of single-phase, asymmetric, nonlinear and impact loads exist, a three-phase load system is randomly changed, and cannot be found visually, the loads can cause three-phase unbalance of a distribution system, the three-phase unbalance of the three-phase load can cause unbalance of three-phase voltage and current of a power supply system, negative sequence voltage and negative sequence current of a power grid are caused, the power supply quality is affected, the line loss is further increased, and the power supply reliability is reduced.
It is therefore desirable to provide an automatic adjustment device for three-phase load imbalance.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide an automatic three-phase load unbalance adjusting device so as to solve the problems in the prior art.
In order to achieve the above object, the present invention is realized by the following technical scheme: the utility model provides an unbalanced three-phase load automatic regulating apparatus, its structure is equipped with body, qianmen, foot rest, vent, lamina tecti, the qianmen is established in the body the place ahead, foot rest fixed connection is in the body bottom, the vent is integrated with the qianmen structure and link up mutually, lamina tecti inlays to be fixed and installs at the body top.
The body is equipped with framework, protection device, phase modulation device, specific motor, supporting seat, inner room, the qianmen is established in the room in front, foot rest fixed connection is in the framework bottom, the lamina tecti inlays the solid and installs at the body top, the inner room is located the framework inboard, the protection device lower extreme is connected with phase modulation device upper end, specific motor embedding is installed in the inner room, the supporting seat fixed mounting is in indoor inside bottom position department, phase modulation device, specific motor bottom are respectively with supporting seat inlay the solid and be connected.
The protection device is provided with a wiring terminal, a current change device and a phase failure protection device, wherein the lower end of the phase failure protection device is connected with the upper end of the phase modulation device, the wiring terminal is connected above the current change device, the phase failure protection device is positioned below the current change device and is matched with the current change device, the wiring terminal is used as a load end through being connected with electric equipment, and the current change device and the phase failure protection device are mutually matched, so that current flow change and voltage control can be performed.
As a further improvement of the invention, the current change device is provided with a current terminal, a current transformer frame and a current control button, the terminal is connected above the current terminal, the phase failure protection device is positioned below the current transformer frame and is movably matched with the current transformer frame, the current transformer frame is connected between the current terminals, the current control button and the current transformer frame are of an integrated structure, the rated frequency of the current terminal is Hertz, and the rated current can be set as required in the rotation of the current control button.
The phase interruption protection device is further improved, the phase interruption protection device is provided with a phase interruption chamber, a current receiving end, an analysis controller, a conversion output end and a judgment device, wherein the lower end of the phase interruption chamber is connected with the upper end of the phase modulation device, the phase interruption chamber is positioned below the current variation device and matched with the phase modulation device, the phase interruption chamber is embedded and arranged at the position of the middle end of the inside of the phase interruption protection device, the current receiving end is connected with the upper end of the analysis controller, the conversion output end is connected with the lower end of the analysis controller, the judgment device is arranged beside the analysis controller, the current receiving end can transmit current information to the analysis controller, and the analysis controller can analyze and process current.
As a further improvement of the invention, the phase interruption chamber is provided with an automatic adjusting system, a step regulator and a connecting end, the lower end of the connecting end is connected with the upper end of the phase modulation device, the automatic adjusting system is positioned below the current variation device and is in movable fit, the automatic adjusting system and the step regulator are embedded and arranged in the phase interruption protection device, the lower end of the automatic adjusting system is connected with the connecting end, the step regulator is connected with the side end of the automatic adjusting system, the leakage breaking time of the automatic adjusting system is less than or equal to zero point two seconds, and the step regulator is adjustable in step.
As a further improvement of the invention, the phase modulation device is provided with three-phase four-wire devices, a voltage variation module and a current conversion module, the voltage variation module and the current conversion module are connected between the voltage variation modules and are matched, the three-phase four-wire devices are positioned above the voltage variation module, the three-phase four-wire devices are three hundred eighty volts of three-phase four-wire alternating current, the current conversion module is provided with three positions, and the phase change time of the three-phase four-wire devices is less than or equal to ten milliseconds.
As a further improvement of the invention, the lower end of the open-phase protection device is connected with a three-phase four-wire device, the three-phase four-wire device is positioned below the current variation device and is matched with the current variation device, and three phases on the three-phase four-wire device are matched with the open-phase protection device.
As a further improvement of the invention, the surrounding plate frame is arranged outside the specific motor, the surrounding plate frame is fixedly arranged in the inner chamber in a embedding way, a certain distance is arranged between the surrounding plate frame and the side of the periphery of the phase modulation device, and the surrounding plate frame is provided with a through hole.
As a further improvement of the present invention,
compared with the prior art, the invention has the following beneficial effects:
1. the current control button is rotated by personnel, rated current can be set according to the requirement, the current transformer frame is convenient to control and cooperate with the current control button, overcurrent action characteristics can adjust protection values according to set current, current on the current fluctuation device can transmit current information to the analysis controller through the current receiving end, the analysis controller carries out analysis and processing of current, the judgment device further judges whether a current system is in an unbalanced state or not, a conversion value of required current is calculated when current balance is achieved, the current is conducted to a phase-failure chamber, an automatic regulation system changes along with current, a step regulator can select reasonable leakage action protection gears according to leakage current of an actual line, and the phase-failure chamber is convenient to play a role in protection under the condition of undervoltage and overvoltage.
2. The three-phase four-wire device is connected with the connecting end phase, so that the change of a phase-breaking chamber is facilitated, the change of current and voltage of the phase-breaking chamber causes the change of a voltage change module, the current conversion module transfers unbalanced current from a phase with large current to a phase with small current, three-phase load distribution is regulated, the phase change time is less than or equal to ten milliseconds, the rapid phase change can enable equipment to achieve a three-phase balance state, low-voltage line current can be effectively balanced, and the problems of large current and high voltage drop of the phase-breaking current are solved, so that the end voltage is improved, and the line loss is reduced.
Drawings
Fig. 1 is a schematic structural view of an automatic three-phase load unbalance adjusting device according to the present invention.
Fig. 2 is a schematic front view of the inside of a body according to the present invention.
Fig. 3 is a schematic front view of the internal structure of a protection device according to the present invention.
Fig. 4 is a schematic front view of the internal structure of a current varying device according to the present invention.
Fig. 5 is a schematic diagram showing the internal front view structure of a phase failure protection apparatus according to the present invention.
Fig. 6 is a schematic diagram showing the internal front view structure of a phase-failure chamber according to the present invention.
Fig. 7 is a schematic diagram showing the internal front view structure of a phase modulation device according to the present invention.
In the figure: the device comprises a body-1, a front door-2, a foot seat-3, a ventilation opening-4, a top cover plate-5, a frame body-11, a protection device-12, a phase modulation device-13, a specific motor-14, a supporting seat-15, an inner chamber-16, a wiring terminal-121, a current changing device-122, a phase failure protection device-123, a current terminal-a 1, a current transformer-a 2, a current control button-a 3, a phase failure chamber-c 1, a current receiving end-c 2, an analysis controller-c 3, a conversion output end-c 4, a judgment device-c 5, an automatic adjusting system-c 11, a step regulator-c 12, a connecting end-c 13, a three-phase four-wire device-131, a voltage changing module-132 and a current converting module-133.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example 1:
as shown in fig. 1 to 6:
the invention provides an automatic three-phase unbalanced load adjusting device which is structurally provided with a body 1, a front door 2, a foot seat 3, a vent 4 and a top cover plate 5, wherein the front door 2 is arranged in front of the body 1, the foot seat 3 is fixedly connected to the bottom of the body 1, the vent 4 and the front door 2 are of an integrated structure and are communicated, and the top cover plate 5 is fixedly embedded at the top of the body 1.
The body 1 is equipped with framework 11, protection device 12, phase modulation device 13, specific motor 14, supporting seat 15, inner room 16, qianmen 2 is established in the inner room 16 place ahead, foot rest 3 fixed connection is in the framework 11 bottom, lamina tecti 5 is built-in and is installed at body 1 top, inner room 16 is located the framework 11 inboard, protection device 12 lower extreme is connected with phase modulation device 13 upper end, specific motor 14 is built-in and is installed in inner room 16, supporting seat 15 fixed mounting is in the inside bottom position department of inner room 16, phase modulation device 13, specific motor 14 bottom are built-in and are connected with supporting seat 15 respectively.
The protection device 12 is provided with a wiring terminal 121, a current variation device 122 and a phase failure protection device 123, the lower end of the phase failure protection device 123 is connected with the upper end of the phase modulation device 13, the wiring terminal 121 is connected above the current variation device 122, the phase failure protection device 123 is located below the current variation device 122 and is matched with the current variation device 122, the wiring terminal 121 is used as a load end through being connected with electric equipment, the current variation device 122 is matched with the phase failure protection device 123, current quantity variation and voltage control can be performed, and the wiring terminal 121 can provide electric energy output for an electric user under the matching of the current variation device 122 and the phase failure protection device 123, and the possibility of equipment burning can be avoided.
The current changing device 122 is provided with a current terminal a1, a current transformer a2 and a current control button a3, the terminal 121 is connected above the current terminal a1, the phase failure protection device 123 is located below the current transformer a2 and is movably matched with the current transformer, the current transformer a2 is connected between the current terminals a1, the current control button a3 and the current transformer a2 are of an integrated structure, the rated frequency of the current terminal a1 is 50 hertz, the rated current of the current control button a3 can be set as required in rotation, and the current transformer a2 is matched with the current control button a3 to enable the overcurrent action characteristic to set a current adjustment protection value according to the set current.
The phase interruption protection device 123 is provided with a phase interruption chamber c1, a current receiving end c2, an analysis controller c3, a conversion output end c4 and a judging device c5, wherein the lower end of the phase interruption chamber c1 is connected with the upper end of the phase modulation device 13, the phase interruption chamber c1 is positioned below the current variation device 122 and matched with the phase modulation device, the phase interruption chamber c1 is embedded and arranged at the position of the middle end in the phase interruption protection device 123, the current receiving end c2 is connected with the upper end of the analysis controller c3, the conversion output end c4 is connected with the lower end of the analysis controller c3, the judging device c5 is arranged beside the analysis controller c3, the current receiving end c2 can transmit current information to the analysis controller c3, the analysis controller c3 can analyze and process current, the judging device c5 can be matched with the analysis controller c3, whether a current system is in an unbalanced state or not, a conversion value of current required when current balance is calculated, the judging device c3 is matched with the analysis controller c3, and the phase interruption chamber c1 can perform current variation and the current is conveniently and automatically conducted to the phase interruption chamber c1 through the analysis controller c 3.
The phase interruption chamber c1 is provided with an automatic adjusting system c11, a step regulator c12 and a connecting end c13, the lower end of the connecting end c13 is connected with the upper end of the phase modulation device 13, the automatic adjusting system c11 is located below the current variation device 122 and is in movable fit, the automatic adjusting system c11 and the step regulator c12 are embedded and installed inside the phase interruption protection device 123, the lower end of the automatic adjusting system c11 is connected with the connecting end c13, the step regulator c12 is connected to the side end of the automatic adjusting system c11, the leakage breaking time of the automatic adjusting system c11 is less than or equal to 0.2 seconds, the step regulator c12 is adjustable in steps, the automatic adjusting system c11 changes along with current, and the step regulator c12 can select a reasonable leakage action protection step according to leakage current of an actual line, and plays a protection role under the condition of under-voltage and over-voltage.
Specific use and action of the embodiment: the electric wire connector is inserted into the wiring terminal 121, so that the body 1 provides electricity for an electricity user, all circuit systems in the inner chamber 16 operate and are matched with each other, a power grid normally works, in the electricity using process of the electricity using end, the wiring terminal 121 can provide electric energy output for the electricity user through the matching of the current changing device 122 and the phase interruption protection device 123, a person rotates the current control button a3, rated current can be set according to requirements, the current transformer a2 is convenient to control the matching of the current control button a3, overcurrent action characteristics can adjust protection values according to set current, the current changing device 122 can change current amount, then the current changing device and the phase interruption protection device 123 are matched with each other, current information can be transmitted to the analysis controller c3 through the current receiving end c2, the analysis controller c3 analyzes and processes the current, the judgment device c5 further judges whether the current system is in an unbalanced state, when the current balance is achieved, the conversion value of the required current is calculated, then the conversion output end c4 conducts the current to the phase interruption chamber c1, the automatic regulation system c11 changes along with the current, the current transformer c12 can select the actual phase interruption protection chamber according to the control situation, and the current leakage protection situation is convenient to select the phase interruption protection chamber according to the actual situation, and the current leakage protection situation is achieved.
Example 2:
as shown in fig. 7:
the phase modulation device 13 is provided with a three-phase four-wire device 131, a voltage variation module 132 and a current conversion module 133, the voltage variation module 132 and the current conversion module 133 are connected between the voltage variation module 132 and are matched, the three-phase four-wire device 131 is located above the voltage variation module 132, the three-phase four-wire device 131 is three hundred eighty volts of three-phase four-wire alternating current, the current conversion module 133 is provided with three places, the phase change time of the three-phase four-wire device 131 is less than or equal to ten milliseconds, the three-phase four-wire device 131 is connected with the connecting end c13, and the phase modulation device 13 is beneficial to transferring unbalanced current from a phase with large current to a phase with small current by the current conversion module 133, so that the three-phase four-wire device 131 can reach a three-phase equilibrium state.
The lower end of the phase-failure protection device 123 is connected with the three-phase four-wire device 131, the three-phase four-wire device 131 is located below the current variation device 122 and is matched with the current variation device 122, three phases on the three-phase four-wire device 131 are matched with the phase-failure protection device 123, the three-phase four-wire device 131 is connected with the phase-failure protection device 123, and then the phase-failure protection device 123 is matched with the current variation device 122, so that the phase modulation device 13 can achieve three-phase balance in a whole.
The enclosing plate frame is arranged outside the specific motor 14, the enclosing plate frame is fixedly embedded in the inner chamber 16, a certain distance is reserved between the enclosing plate frame and the side of the periphery of the phase modulation device 13, a through hole is formed in the enclosing plate frame, and a through hole structure is arranged on the enclosing plate frame, so that heat energy generated by the specific motor 14 is conveniently radiated, and the enclosing plate frame has a specific motor protection function.
Specific use and action of the embodiment: through the phase connection of the three-phase four-wire device 131 and the connection end c13, the change of the open-phase chamber c1 is facilitated, the change of the current and the voltage of the open-phase chamber c1 causes the change of the voltage change module 132, the current conversion module 133 transfers unbalanced current from the phase with large current to the phase with small current, the three-phase load distribution is adjusted, the phase change time is less than or equal to ten milliseconds, the rapid phase change can enable the equipment to achieve a three-phase balance state, the low-voltage line current can be effectively balanced, the problems of large current and high voltage drop of the partial load phase are solved, the terminal voltage is improved, and the line loss is reduced.
By utilizing the technical scheme of the invention or under the inspired by the technical scheme of the invention, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical scheme falls into the protection scope of the invention.
Claims (4)
1. The utility model provides an unbalanced automatic regulating apparatus of three-phase load, its structure is equipped with body (1), qianmen (2), footstool (3), vent (4), lamina tecti (5), qianmen (2) are established in body (1) the place ahead, footstool (3) fixed connection is in body (1) bottom, vent (4) and qianmen (2) are integrated into one piece structure and link up mutually, lamina tecti (5) are inlayed and are installed at body (1) top, its characterized in that:
the novel phase modulation device is characterized in that the body (1) is provided with a frame body (11), a protection device (12), a phase modulation device (13), a motor (14), a supporting seat (15) and an inner chamber (16), the front door (2) is arranged in front of the inner chamber (16), the foot seat (3) is fixedly connected to the bottom of the frame body (11), the top cover plate (5) is fixedly embedded and arranged at the top of the body (1), the inner chamber (16) is positioned at the inner side of the frame body (11), the lower end of the protection device (12) is connected with the upper end of the phase modulation device (13), the motor (14) is embedded and arranged in the inner chamber (16), the supporting seat (15) is fixedly arranged at the bottom end position inside the inner chamber (16), and the phase modulation device (13) and the bottom of the motor (14) are fixedly connected with the supporting seat (15) respectively;
the protection device (12) is provided with a wiring terminal (121), a current change device (122) and a phase failure protection device (123), the lower end of the phase failure protection device (123) is connected with the upper end of the phase modulation device (13), the wiring terminal (121) is connected above the current change device (122), and the phase failure protection device (123) is positioned below the current change device (122) and is matched with the current change device;
the current fluctuation device (122) is provided with a current terminal (a 1), a current transformer frame (a 2) and a current control button (a 3), the wiring terminal (121) is connected above the current terminal (a 1), the open-phase protection device (123) is positioned below the current transformer frame (a 2) and is in movable fit, the current transformer frame (a 2) is connected between the current terminals (a 1), and the current control button (a 3) and the current transformer frame (a 2) are of an integrated structure;
the phase-failure protection device (123) is provided with a phase-failure chamber (c 1), a current receiving end (c 2), an analysis controller (c 3), a conversion output end (c 4) and a judging device (c 5), wherein the lower end of the phase-failure chamber (c 1) is connected with the upper end of the phase modulation device (13), the phase-failure chamber (c 1) is positioned below the current variation device (122) and matched with the current variation device, the phase-failure chamber (c 1) is embedded and installed at the position of the middle end of the inside of the phase-failure protection device (123) and is far left, the current receiving end (c 2) is connected with the upper end of the analysis controller (c 3), the conversion output end (c 4) is connected with the lower end of the analysis controller (c 3), and the judging device (c 5) is arranged beside the analysis controller (c 3);
the phase interruption chamber (c 1) is provided with an automatic regulating system (c 11), a step regulator (c 12) and a connecting end (c 13), the lower end of the connecting end (c 13) is connected with the upper end of the phase modulation device (13), the automatic regulating system (c 11) is positioned below the current fluctuation device (122) and is in movable fit, the automatic regulating system (c 11) and the step regulator (c 12) are embedded and installed inside the phase interruption protection device (123), the lower end of the automatic regulating system (c 11) is connected with the connecting end (c 13), and the step regulator (c 12) is connected to the side end of the automatic regulating system (c 11).
2. The automatic three-phase load unbalance adjustment device according to claim 1, wherein: the phase modulation device (13) is provided with three-phase four-wire devices (131), voltage variation modules (132) and current conversion modules (133), the voltage variation modules (132) and the current conversion modules (133) are connected between the voltage variation modules (132) and are matched, and the three-phase four-wire devices (131) are located above the voltage variation modules (132).
3. The automatic three-phase load unbalance adjustment device according to claim 1, wherein: the lower end of the open-phase protection device (123) is connected with a three-phase four-wire device (131), and the three-phase four-wire device (131) is positioned below the current variation device (122) and matched with the current variation device.
4. The automatic three-phase load unbalance adjustment device according to claim 1, wherein: the motor (14) is provided with a surrounding plate frame, the surrounding plate frame is fixedly embedded in the inner chamber (16), a certain distance is reserved between the surrounding plate frame and the side of the periphery of the phase modulation device (13), and a through hole is formed in the surrounding plate frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111272061.XA CN113839400B (en) | 2021-10-29 | 2021-10-29 | Automatic three-phase load unbalance adjusting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111272061.XA CN113839400B (en) | 2021-10-29 | 2021-10-29 | Automatic three-phase load unbalance adjusting device |
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| Publication Number | Publication Date |
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| CN113839400A CN113839400A (en) | 2021-12-24 |
| CN113839400B true CN113839400B (en) | 2024-04-09 |
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| CN202111272061.XA Active CN113839400B (en) | 2021-10-29 | 2021-10-29 | Automatic three-phase load unbalance adjusting device |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205407279U (en) * | 2016-02-24 | 2016-07-27 | 河南恒瑞电力设备有限公司 | Three -phase unbalanced load automatic regulating apparatus |
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2021
- 2021-10-29 CN CN202111272061.XA patent/CN113839400B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205407279U (en) * | 2016-02-24 | 2016-07-27 | 河南恒瑞电力设备有限公司 | Three -phase unbalanced load automatic regulating apparatus |
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| CN113839400A (en) | 2021-12-24 |
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