CN112531877B - Distribution transformer monitoring and metering terminal capable of automatically switching standby power supply during power failure - Google Patents

Distribution transformer monitoring and metering terminal capable of automatically switching standby power supply during power failure Download PDF

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Publication number
CN112531877B
CN112531877B CN202011357123.2A CN202011357123A CN112531877B CN 112531877 B CN112531877 B CN 112531877B CN 202011357123 A CN202011357123 A CN 202011357123A CN 112531877 B CN112531877 B CN 112531877B
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China
Prior art keywords
groove
plate
distribution transformer
arc
power supply
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Application number
CN202011357123.2A
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Chinese (zh)
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CN112531877A (en
Inventor
刘修理
王利平
王勇
李毅
夏雯
代华平
杨兰
陈林
付克林
王治秀
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Guizhou Power Grid Co Ltd
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Guizhou Power Grid Co Ltd
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Priority to CN202011357123.2A priority Critical patent/CN112531877B/en
Publication of CN112531877A publication Critical patent/CN112531877A/en
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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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/248—UPS systems or standby or emergency generators
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

The invention discloses a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure, which comprises a monitoring module, a monitoring module and a control module, wherein the monitoring module comprises an energy storage module, a voltage stabilizing module, a relay, a distribution transformer monitoring and metering terminal and a digital controller; the energy storage module and the relay are connected with a power supply circuit; the relay is provided with an accommodating cavity; the wiring module comprises a wiring terminal and a wiring terminal head, the wiring terminal is arranged in the accommodating cavity, and the wiring terminal head are connected through a clamping piece; the invention avoids the occurrence of a monitored vacuum area in the distribution transformer area, so that a background system can normally monitor other faults and the like in the distribution transformer area during the fault elimination of a power supply line, and the wiring is convenient.

Description

Distribution transformer monitoring and metering terminal capable of automatically switching standby power supply during power failure
Technical Field
The invention relates to the technical field of power distribution terminals, in particular to a power distribution transformer monitoring and metering terminal capable of automatically switching a standby power supply during power failure.
Background
The distribution transformer monitoring and metering terminal is a machine used for switching lines, distribution transformers and metering users. When the distribution transformer monitoring and metering terminal works normally, the distribution transformer monitoring and metering terminal is directly connected to a power grid to obtain power and supply power to each module in the distribution transformer monitoring and metering terminal, and each module in the distribution transformer monitoring and metering terminal sends various monitoring data to a terminal system in real time. However, when the power grid fails and the power is cut off, the distribution transformer monitoring and metering terminal stops working, and the background system cannot receive data of the distribution transformer terminal. Before power supply is recovered, the distribution transformer area is in a monitored vacuum area, and the background system cannot monitor other faults and the like of the distribution transformer area.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and some simplifications or omissions may be made in this section as well as in the abstract and title of the application to avoid obscuring the purpose of this section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made keeping in mind the above problems occurring in the prior art and/or the problems occurring in the prior art.
Therefore, the invention aims to solve the technical problem that the distribution transformer monitoring and metering terminal cannot monitor the distribution transformer area when the power supply line is powered off.
In order to solve the technical problems, the invention provides the following technical scheme: a distribution transformer monitoring and metering terminal capable of automatically switching a standby power supply during power failure comprises,
the monitoring module comprises an energy storage module, a voltage stabilizing module, a relay, a distribution transformer monitoring and metering terminal and a digital controller, wherein the voltage stabilizing module is connected with the energy storage module and the relay, the distribution transformer monitoring and metering terminal is connected with the relay, and the digital controller is connected with the energy storage module and the voltage stabilizing module;
the energy storage module and the relay are connected with a power supply circuit;
the relay is provided with an accommodating cavity;
the wiring module comprises a wiring terminal and a wiring terminal, wherein the wiring terminal is arranged in the accommodating cavity, and the wiring terminal are connected through a clamping piece.
The invention relates to a preferable scheme of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure, wherein the preferable scheme comprises the following steps: the wiring terminal comprises a metal column, a splicing groove arranged at the end part of the metal column and a ring plate arranged on the periphery of the metal column.
The invention relates to a preferable scheme of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure, wherein the preferable scheme comprises the following steps: the wiring terminal comprises a wire, a contact and a sleeve joint piece, wherein the contact is arranged at the end part of the wire, and the sleeve joint piece is sleeved on the contact;
the contact end is provided with a butt joint groove, a plug-in post is arranged in the butt joint groove, the metal post is arranged in the butt joint groove, and the plug-in post is arranged in the plug-in groove.
The invention relates to a preferable scheme of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure, wherein the preferable scheme comprises the following steps: the socket piece is provided with a jack, and the contact is arranged in the jack;
the socket joint piece is provided with an annular groove, a first arc groove and a second arc groove are arranged between the annular groove and the end face of the socket joint piece, and the first arc groove and the second arc groove are symmetrically arranged;
the socket joint piece is further provided with a side groove, and the side groove is communicated with the annular groove through a through groove.
The invention relates to a preferable scheme of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure, wherein the preferable scheme comprises the following steps: the sleeve joint piece is also provided with a limiting block, the limiting block comprises a push block, a push plate and a fixture block, the push plate is arranged on the outer side of the push block, and the fixture block is arranged at the end part of the push block;
the push block is arranged in the side groove, the clamping block is arranged in the through groove, and a first spring is arranged in the side groove and connected with the push block.
The invention relates to a preferable scheme of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure, wherein the preferable scheme comprises the following steps: the clamping piece comprises a first sleeving piece and a second sleeving piece, the first sleeving piece comprises a first arc plate, a first end plate and a first clamping arm, the first end plate and the first clamping arm are respectively arranged at two ends of the first arc plate, the first arc plate is arranged in the first arc groove, and the first clamping arm is arranged in the annular groove;
the second sleeving piece is provided with a second arc plate, and a second end plate and a second clamping arm which are arranged at two ends of the second arc plate respectively, the second arc plate is arranged in the second arc groove, and the second clamping arm is arranged in the annular groove.
The invention relates to a preferable scheme of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure, wherein the preferable scheme comprises the following steps: a first caulking groove and a second caulking groove are respectively formed in two end parts of the first clamping arm, a touch block is arranged in the first caulking groove, and a second spring is arranged in the first caulking groove and connected with the touch block;
and a third spring is arranged in the second caulking groove.
The invention relates to a preferable scheme of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure, wherein the scheme comprises the following steps: the first clamping arm is also provided with a through hole, the position of the through hole corresponds to that of the through groove, and the through hole is communicated with the first caulking groove;
an inclined plane is arranged on the touch block, and the position of the inclined plane corresponds to that of the through hole;
the first end plate is provided with a first round hole, and a first round groove is formed in the side face of the first round hole.
The invention relates to a preferable scheme of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure, wherein the preferable scheme comprises the following steps: a semi-ring inner groove is formed in the second clamp arm, and a semi-ring block is arranged in the semi-ring inner groove;
and a second round hole is formed in the second end plate, and a second round groove is formed in the side surface of the first round hole.
The invention relates to a preferable scheme of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure, wherein the preferable scheme comprises the following steps: the first end plate and the second end plate are both provided with a guide plate and a square plate arranged at the end part of the guide plate;
the side wall of the accommodating cavity is provided with a square groove and a guide groove, and the guide groove is communicated with the square groove;
the square plate is arranged in the square groove, and the guide plate is arranged in the guide groove.
The invention has the beneficial effects that: the invention avoids the occurrence of a monitored vacuum area in the distribution transformer area, so that a background system can normally monitor other faults and the like in the distribution transformer area during the fault elimination of a power supply line, and the wiring is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic structural diagram of a monitoring module in a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a line connection structure of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during a power outage according to an embodiment of the present invention;
fig. 3 is a schematic view of a placement structure of a wiring module in a receiving cavity of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure according to an embodiment of the present invention;
fig. 4 is a schematic view of an assembly structure of a wiring module in a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during a power failure according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an explosion structure of a wiring module in a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure according to an embodiment of the present invention;
fig. 6 is a schematic structural view illustrating a terminal and a fastener in a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during a power outage according to an embodiment of the present invention;
fig. 7 is a cross-sectional view showing internal structures of a first card arm and a second card arm in the distribution transformer monitoring and metering terminal for automatically switching a standby power supply during a power failure according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a placement structure of a limiting block in a side groove of a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a display square groove and a guide groove in a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during a power failure according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and it will be appreciated by those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the present invention and that the present invention is not limited by the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 9, the present embodiment provides a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure, including,
the monitoring module 100 comprises an energy storage module 101, a voltage stabilizing module 102, a relay 103, a distribution transformer monitoring and metering terminal 104 and a digital controller 105, wherein the voltage stabilizing module 102 is connected with the energy storage module 101 and the relay 103, the distribution transformer monitoring and metering terminal 104 is connected with the relay 103, and the digital controller 105 is connected with the energy storage module 101 and the voltage stabilizing module 102;
the energy storage module 101 and the relay 103 are connected with a power supply line;
the relay 103 is provided with an accommodating cavity 103a;
the wiring module 200 comprises a wiring terminal 201 and a wiring terminal 202, wherein the wiring terminal 201 is arranged in the accommodating cavity 103a, and the wiring terminal 201 and the wiring terminal 202 are connected through a clamping piece 203.
The post 201 includes a metal post 201a, a plug groove 201b disposed at an end of the metal post 201a, and a ring plate 201c disposed at a periphery of the metal post 201 a.
The metal pillar 201a is disposed on a sidewall of the accommodating cavity 103 a.
The terminal 202 includes a wire 202a, a contact 202b and a socket 202c, wherein the contact 202b is disposed at an end of the wire 202a, and the socket 202c is sleeved on the contact 202 b;
the end of the contact 202b is provided with a butt-joint groove 202d, a plug column 202e is arranged in the butt-joint groove 202d, the metal column 201a is arranged in the butt-joint groove 202d, and the plug column 202e is arranged in the plug groove 201 b.
The socket 202c is fixed on the contact 202b in such a way that the socket 202c can rotate relative to the contact 202b and cannot be separated from the contact 202 b.
The plug connection of the contact 202b and the metal column 201a enables the wire 202a to be electrically connected with the internal device of the relay 103.
The socket 202c is provided with a jack 202c-1, and the contact 202b is arranged in the jack 202 c-1;
a ring groove 202c-2 is formed in the socket piece 202c, a first arc groove 202c-3 and a second arc groove 202c-4 are formed between the ring groove 202c-2 and the end face of the socket piece, and the first arc groove 202c-3 and the second arc groove 202c-4 are symmetrically arranged;
the socket 202c is further provided with a side groove 202c-5, and the side groove 202c-5 is communicated with the annular groove 202c-2 through a through groove 202 c-6.
The sleeving piece 202c is further provided with a limiting block 202f, the limiting block 202f comprises a push block 202f-1, a push plate 202f-2 and a fixture block 202f-3, the push plate 202f-2 is arranged on the outer side of the push block 202f-1, and the fixture block 202f-3 is arranged at the end part of the push block 202 f-1;
the push block 202f-1 is arranged in the side groove 202c-5, the fixture block 202f-3 is arranged in the through groove 202c-6, and the first spring 202c-6 connected with the push block 202f-1 is arranged in the side groove 202 c-5.
The first spring 202c-6 causes the latch 202f-3 to be positioned in the through groove 202c-6 and the end thereof to be positioned in the ring groove 202c-2 in an initial state, i.e., a natural state.
The clamping piece 203 comprises a first sleeving piece 203a and a second sleeving piece 203b, the first sleeving piece 203a comprises a first arc plate 203a-1, a first end plate 203a-2 and a first clamping arm 203a-3 which are respectively arranged at two ends of the first arc plate 203a-1, the first arc plate 203a-1 is arranged in a first arc groove 202c-3, and the first clamping arm 203a-3 is arranged in a ring groove 202 c-2;
the second sleeve member 203b is provided with a second arc plate 203b-1, a second end plate 203b-2 and a second clamping arm 203b-3 which are respectively arranged at two ends of the second arc plate 203b-1, the second arc plate 203b-1 is arranged in a second arc groove 202c-3, and the second clamping arm 203b-3 is arranged in a ring groove 202 c-2.
The first end plate 203a-2 and the second end plate 203b-2 are two semicircular plates with the same size, and butt joints thereof are combined together to form a whole circular plate, and the first clamp arm 203a-3 and the second clamp arm 203b-3 are two semicircular ring structures with the same size, and butt joints thereof are butted together to just fill the ring groove 202 c-2.
The two ends of the first clamping arm 203a-3 are respectively provided with a first caulking groove 203a-4 and a second caulking groove 203a-5, the first caulking groove 203a-4 is provided with a touch block 203a-6, and the first caulking groove 203a-4 is provided with a second spring 203a-7 connected with the touch block 203a-6;
a third spring 203a-8 is provided in the second caulking groove 203 a-5.
The first clamping arm 203a-3 is also provided with a through hole 203a-9, the position of the through hole 203a-9 corresponds to the position of the through groove 202c-6, and the through hole 203a-9 is communicated with the first caulking groove 203 a-4;
the touch block 203a-6 is provided with an inclined surface 203a-61, and the position of the inclined surface 203a-61 corresponds to that of the through hole 203 a-9;
the first end plate 203a-2 is provided with a first round hole 203a-10, and the side surface of the first round hole 203a-10 is provided with a first round groove 203a-11.
A semi-ring inner groove 203b-4 is formed in the second clamp arm 203b-3, and a semi-ring block 202b-5 is formed in the semi-ring inner groove 203 b-4;
the second end plate 203b-2 is provided with a second round hole 203b-6, and the side surface of the second round hole 203b-6 is provided with a second round groove 203b-7.
The first end plate 203a-2 and the second end plate 203b-2 are both provided with a guide plate 301 and a square plate 302 arranged at the end part of the guide plate 301;
the side wall of the accommodating cavity 103a is provided with a square groove 103a-1 and a guide groove 103a-2, and the guide groove 103a-2 is communicated with the square groove 103 a-1;
the square plate 302 is disposed in the square groove 103a-1, and the guide plate 301 is disposed in the guide groove 103 a-2.
It should be noted that the square groove 103a-1 is provided with a spring connecting square plate 302 so that the first and second engaging members 203a and 203b are biased to a state of being separated to both sides.
When the terminal 202 is used, the terminal 202 is inserted into the metal post 201a, specifically, the metal post 201a is disposed in the mating groove 202d, the mating post 202e is disposed in the mating groove 201b, electrical connection is achieved, the terminal 202 is abutted against the ring plate 201c, the limiting block 202f is pushed, the first spring 202c-6 is compressed, the end of the clamping block 202f-3 moves from the annular groove 202c-2 to the through groove 202c-6, the position of the sleeve 202c is adjusted, the first arc groove 202c-3 and the first arc plate 203a-1 correspond to each other, the second arc groove 202c-4 and the second arc plate 203b-1 correspond to each other, the second sleeve 203b and the first sleeve 203a are pressed together at the position of the middle sleeve 202c, the metal post 201a is positioned in the first arc groove 203a-10 and the second arc plate 203b-6, the ring plate 203 c is embedded in the second arc groove 203 c-11, the first sleeve 203 c is embedded in the second arc groove 203 c-1, the second sleeve 203 c, the second sleeve 203 c is embedded in the second arc groove 203a-11, the second arc groove 203 c-1, the second sleeve 203 c is embedded in the second arc groove 202c, and the second sleeve 203 c-1 b-1, the second sleeve 203 c is separated from the second arc groove 203 c, and the second sleeve 202c, and the second sleeve 203 c, the second sleeve 203 c are separated from the second arc groove 203a, and the second arc plate 203a, and the second sleeve 202c, and the second arc plate 203 c, and the second arc arm 202c, and the second arc arm is separated from the second sleeve 203 a.
At this time, the release limiting block 202f is pushed under the action of the first spring 202c-6, the end of the latch 202f-3 passes through the through slot 202c-6 and the through hole 203a-9 to enter the first caulking slot 203a-4, contacts the inclined surface 203a-61 to push the trigger 203a-6 to move, the second spring 203a-7 is elongated, the trigger 203a-6 is pushed out of the first caulking slot 203a-4 to enter the half ring inner slot 203b-4, the trigger 203a-6 pushes the half ring block 202b-5, and the other end of the half ring block 202b-5 is pushed out of the half ring inner slot 203b-4 to enter the second caulking slot 203a-5, and simultaneously compresses the third spring 203a-8.
The connection of the connecting metal post 201a and the terminal 202 is now achieved.
When the terminal 202 is to be removed, the limiting block 202f is pushed to compress the first spring 202c-6, the end of the block 202f-3 moves from the first slot 203a-4 to the through slot 202c-6, the trigger block 203a-6 is pulled back into the first slot 203a-4 by the second spring 203a-7, the half-ring block 202b-5 is pushed out of the second slot 203a-5 by the third spring 203a-8, and the second engaging member 203b and the first engaging member 203a are separated from each other by the spring, so that the terminal 202 can be removed.
It should be noted that the stiffness coefficient of the first spring 202c-6 is greater than the stiffness coefficients of the second spring 203a-7 and the third spring 203 a-8; preferably, the stiffness coefficient of the third springs 203a-8 is greater than the stiffness coefficient of the second springs 203 a-7.
As shown in fig. 1, a distribution transformer monitoring and metering terminal for automatically switching a standby power supply during power failure comprises a distribution transformer monitoring and metering terminal 104 connected to a power supply line, a relay 103 is connected between the power supply line and the distribution transformer monitoring and metering terminal 104, and a power input end of the distribution transformer monitoring and metering terminal 104 is connected with a normally open contact switch of the relay 103; a normally closed contact switch of the relay 103 is connected with the energy storage module 101; the energy storage module 101 is connected to a power supply line.
As shown in fig. 2, it can be seen that the main power supply is a circuit from a power supply line to the distribution transformer monitoring and metering terminal 104 through the relay 103, and the backup power supply is a circuit from the energy storage module 101 to the distribution transformer monitoring and metering terminal 104 through the relay 103. K1 and K3 are normally open contact switches, and K2 and K4 are normally closed contact switches. When the main power supply is normal, the coil of the relay is closed, the normally open contact switch K1 of the relay 103 is closed, the normally closed contact switch K2 is opened, and the main power supply of the distribution transformer monitoring and metering terminal directly gets electricity. And when the main power supply is powered off, the normally open contact switch K3 of the relay 103 is in a disconnected state, the normally closed contact switch K4 connected with the energy storage module is closed, and the energy storage module supplies power for the distribution transformer monitoring and metering terminal.
Preferably, the relay 103 is an HJLL-95/B digital zero-sequence current relay provided by josephson electric appliance limited.
And a voltage stabilizing module 102 is connected between the energy storage module 101 and the relay 103 to ensure that the energy storage module can discharge stably. Preferably, the voltage stabilizing module 102 is a DWW-XS precision linear voltage and current stabilizing power supply manufactured by the gismooths power technology ltd.
The energy storage module 101 and the voltage stabilizing module 102 are respectively connected with the digital controller 105 through wires. To ensure the stability of the energy storage module 101 during charging and the safety during discharging through the voltage stabilization module 102. Preferably, the digital controller 202 is an AIJ high-precision intelligent temperature controller/regulator manufactured by xiamengyu electrical automation technology ltd.
The energy storage module 101 comprises a voltage transformation device and a storage battery; the power input end of the voltage transformation device is connected with a power supply line lead, and the power output end of the voltage transformation device is connected with a power input end lead of the storage battery; the power output end of the storage battery is connected with the voltage stabilizing module through a wire.
Preferably, the voltage transformation device is a 48V2A power adapter provided by Daniu electronic technology, inc. of Zhongshan city.
The storage battery is formed by connecting more than two super capacitors in series. The capacity of the storage battery is larger, and the charging and discharging time is shorter. Preferably, the super capacitor is a SE-5R5-D155VYV model super capacitor manufactured by Kaimei energy Co., ltd.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (1)

1. The utility model provides a distribution transformer monitoring and metering terminal of automatic switch-over stand-by power supply when having a power failure which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the monitoring module (100) comprises an energy storage module (101), a voltage stabilizing module (102), a relay (103), a distribution transformer monitoring and metering terminal (104) and a digital controller (105), wherein the voltage stabilizing module (102) is connected with the energy storage module (101) and the relay (103), the distribution transformer monitoring and metering terminal (104) is connected with the relay (103), and the digital controller (105) is connected with the energy storage module (101) and the voltage stabilizing module (102);
the energy storage module (101) and the relay (103) are connected with a power supply line;
the relay (103) is provided with an accommodating cavity (103 a);
the wiring module (200) comprises a wiring terminal (201) and a wiring terminal (202), the wiring terminal (201) is arranged in the accommodating cavity (103 a), and the wiring terminal (201) is connected with the wiring terminal (202) through a clamping piece (203);
the binding post (201) comprises a metal post (201 a), an insertion groove (201 b) arranged at the end part of the metal post (201 a), and a ring plate (201 c) arranged on the periphery of the metal post (201 a);
the terminal (202) comprises a wire (202 a), a contact (202 b) and a socket piece (202 c), the contact (202 b) is arranged at the end part of the wire (202 a), and the socket piece (202 c) is sleeved on the contact (202 b);
the end part of the contact (202 b) is provided with a butt joint groove (202 d), an insertion column (202 e) is arranged in the butt joint groove (202 d), the metal column (201 a) is arranged in the butt joint groove (202 d), and the insertion column (202 e) is arranged in the insertion groove (201 b);
a jack (202 c-1) is arranged on the socket piece (202 c), and the contact (202 b) is arranged in the jack (202 c-1);
a ring groove (202 c-2) is formed in the socket piece (202 c), a first arc groove (202 c-3) and a second arc groove (202 c-4) are formed between the ring groove (202 c-2) and the end face of the socket piece, and the first arc groove (202 c-3) and the second arc groove (202 c-4) are symmetrically arranged;
the sleeve piece (202 c) is also provided with a side groove (202 c-5), and the side groove (202 c-5) is communicated with the annular groove (202 c-2) through a through groove (202 c-6);
the sleeving piece (202 c) is further provided with a limiting block (202 f), the limiting block (202 f) comprises a push block (202 f-1), a push plate (202 f-2) and a fixture block (202 f-3), the push plate (202 f-2) is arranged on the outer side of the push block (202 f-1), and the fixture block (202 f-3) is arranged at the end part of the push block (202 f-1);
the push block (202 f-1) is arranged in the side groove (202 c-5), the fixture block (202 f-3) is arranged in the through groove (202 c-6), and a first spring (202 c-6) is arranged in the side groove (202 c-5) and connected with the push block (202 f-1);
the clamping piece (203) comprises a first sleeving piece (203 a) and a second sleeving piece (203 b), the first sleeving piece (203 a) comprises a first arc plate (203 a-1), a first end plate (203 a-2) and a first clamping arm (203 a-3) which are arranged at two ends of the first arc plate (203 a-1) respectively, the first arc plate (203 a-1) is arranged in the first arc groove (202 c-3), and the first clamping arm (203 a-3) is arranged in the annular groove (202 c-2);
the second sleeving part (203 b) is provided with a second arc plate (203 b-1), and a second end plate (203 b-2) and a second clamping arm (203 b-3) which are respectively arranged at two ends of the second arc plate (203 b-1), the second arc plate (203 b-1) is arranged in the second arc groove (202 c-3), and the second clamping arm (203 b-3) is arranged in the ring groove (202 c-2);
a first caulking groove (203 a-4) and a second caulking groove (203 a-5) are respectively formed at two ends of the first clamping arm (203 a-3), a touch block (203 a-6) is arranged in the first caulking groove (203 a-4), and a second spring (203 a-7) is arranged in the first caulking groove (203 a-4) and connected with the touch block (203 a-6);
a third spring (203 a-8) is arranged in the second caulking groove (203 a-5);
the first clamping arm (203 a-3) is further provided with a through hole (203 a-9), the position of the through hole (203 a-9) corresponds to the position of the through groove (202 c-6), and the through hole (203 a-9) is communicated with the first caulking groove (203 a-4);
the touch block (203 a-6) is provided with an inclined surface (203 a-61), and the position of the inclined surface (203 a-61) corresponds to that of the through hole (203 a-9);
a first round hole (203 a-10) is formed in the first end plate (203 a-2), and a first round groove (203 a-11) is formed in the side surface of the first round hole (203 a-10);
a semi-ring inner groove (203 b-4) is formed in the second clamp arm (203 b-3), and a semi-ring block (202 b-5) is arranged in the semi-ring inner groove (203 b-4);
a second round hole (203 b-6) is formed in the second end plate (203 b-2), and a second round groove (203 b-7) is formed in the side surface of the second round hole (203 b-6);
the first end plate (203 a-2) and the second end plate (203 b-2) are respectively provided with a guide plate (301) and a square plate (302) arranged at the end part of the guide plate (301);
the side wall of the accommodating cavity (103 a) is provided with a square groove (103 a-1) and a guide groove (103 a-2), and the guide groove (103 a-2) is communicated with the square groove (103 a-1);
the square plate (302) is arranged in the square groove (103 a-1), and the guide plate (301) is arranged in the guide groove (103 a-2).
CN202011357123.2A 2020-11-26 2020-11-26 Distribution transformer monitoring and metering terminal capable of automatically switching standby power supply during power failure Active CN112531877B (en)

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CN112531877B true CN112531877B (en) 2022-12-09

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202840683U (en) * 2012-07-31 2013-03-27 湖南斯凯电气有限公司 Low-voltage grid intelligent distribution transformer terminal
CN205039618U (en) * 2015-08-31 2016-02-17 贵州电网有限责任公司贵阳供电局 Join in marriage and become monitor terminal
CN205355933U (en) * 2015-12-02 2016-06-29 国家电网公司 Join in marriage and become acquisition terminal uninterrupted power source
CN206640319U (en) * 2017-04-01 2017-11-14 国家电网公司 A kind of distribution box distribution transformer terminals
CN111107159A (en) * 2019-12-27 2020-05-05 广东电网有限责任公司 Remote metering system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7393214B2 (en) * 2006-02-17 2008-07-01 Centipede Systems, Inc. High performance electrical connector
US8213139B2 (en) * 2008-09-12 2012-07-03 Luen Ming Electric Works Company Limited Leakage current protection plug and interrupt protection plug contact spring structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202840683U (en) * 2012-07-31 2013-03-27 湖南斯凯电气有限公司 Low-voltage grid intelligent distribution transformer terminal
CN205039618U (en) * 2015-08-31 2016-02-17 贵州电网有限责任公司贵阳供电局 Join in marriage and become monitor terminal
CN205355933U (en) * 2015-12-02 2016-06-29 国家电网公司 Join in marriage and become acquisition terminal uninterrupted power source
CN206640319U (en) * 2017-04-01 2017-11-14 国家电网公司 A kind of distribution box distribution transformer terminals
CN111107159A (en) * 2019-12-27 2020-05-05 广东电网有限责任公司 Remote metering system

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