CN110308675A - A kind of control circuit of photo-voltaic power generation station 10kV metering cabinet - Google Patents
A kind of control circuit of photo-voltaic power generation station 10kV metering cabinet Download PDFInfo
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- CN110308675A CN110308675A CN201910457937.4A CN201910457937A CN110308675A CN 110308675 A CN110308675 A CN 110308675A CN 201910457937 A CN201910457937 A CN 201910457937A CN 110308675 A CN110308675 A CN 110308675A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
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Abstract
A kind of control circuit of photo-voltaic power generation station 10kV metering cabinet, including three phase mains and voltage measurement circuit, voltage measurement circuit includes three-phase three wire terminal box JXH, electric energy meter PJ1-PJ8, current transformer TAa and TAc, A, B and C phase line of three phase mains access voltage transformer after passing through fuse 1RD, 2RD and 3RD respectively, and 1,6 and 9 terminals of JXH are respectively connected to after transformation；It is accessed between 4 ' and 6 ' terminals of JXH after electric energy meter PJ1 and PJ2 series connection；It is accessed between 10 ' and 12 ' terminals of JXH after electric energy meter PJ3 and PJ4 series connection；4 and 8 terminal grounds of JXH, 3 terminals are grounded by current transformer TAa, and 7 terminals are grounded by current transformer TAc；After electric energy meter PJ5 and PJ7 series connection, the 1 ' terminal of head end and JXH are connected, and end is connect with 13 ' terminals, and intermediate ends are connect with 7 ' terminals；After electric energy meter PJ6 and PJ8 series connection, the 2 ' terminals of head end and JXH are connected, and end is connect with 14 ' terminals, and intermediate ends are connect with 8 ' terminals.
Description
Technical field
The present invention relates to electric system transmission & distribution electro-technical fields, and in particular to a kind of control of photo-voltaic power generation station 10kV metering cabinet
Circuit processed.
Background technique
Currently, in photo-voltaic power generation station distribution transforming, it is substantially direct using three pieces of single-phase watt-hour meters of three-phase four-wire system
Three pieces of single-phase watt-hour meters of access method and three-phase four-wire system are directly accessed two kinds of wiring of method through current transformer, both wiring are once
There is kilowatt-hour meter and current mulual inductor malfunction, can all influence the accuracy and correctness of meter metering, gives power supply department charge band
It bothers, moreover, it is all more troublesome in terms of construction, have a power failure wide, power off time is long, it is unnecessary also to cause to power supply department
Economic loss.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of control circuit of photo-voltaic power generation station 10kV metering cabinet, including
Three phase mains and voltage measurement circuit, the voltage measurement circuit include three-phase three wire terminal box JXH, electric energy meter PJ1, electric energy meter
PJ2, electric energy meter PJ3, electric energy meter PJ4, electric energy meter PJ5, electric energy meter PJ6, electric energy meter PJ7, electric energy meter PJ8, the first Current Mutual Inductance
Device TAa and the second current transformer TAc, A phase line, B phase line and the C phase line of three phase mains pass through the first high-tension fuse respectively
Voltage transformer is accessed after 1RD, the second high-tension fuse 2RD and third high-tension fuse 3RD, and through voltage transformer transformation
It is respectively connected to 1 terminal, 6 terminals and 9 terminals of three-phase three wire terminal box JXH afterwards；The electric energy meter PJ1 and electric energy meter PJ2 series connection
It is accessed between the 4 ' terminals and 6 ' terminals of three-phase three wire terminal box JXH afterwards；The electric energy meter PJ3 and electric energy meter PJ4 series connection is followed by
Enter between the 10 ' terminals of three-phase three wire terminal box JXH and 12 ' terminals；4 and 8 terminals of the three-phase three wire terminal box JXH connect
Ground, 3 terminals are grounded by the first current transformer TAa, and 7 terminals are grounded by the second current transformer TAc；The electric energy meter
PJ5 and electric energy meter PJ7 connects to form first via output metering circuit, and the 1 ' terminal of head end and three-phase three wire terminal box JXH connect
It connects, end is connect with 13 ' terminals, and intermediate ends are connect with 7 ' terminals；The electric energy meter PJ6 and electric energy meter PJ8 connect to form second
Road exports metering circuit, and head end is connect with the 2 ' terminals of three-phase three wire terminal box JXH, and end is connect with 14 ' terminals, intermediate ends
It is connect with 8 ' terminals.
Further, the control circuit further includes electrification display circuit, the input terminal of the electrification display circuit and institute
State three phase mains connection, connection of the cathode output end by miniature circuit breaker QF1 and the anode+KM of DC power supply, cathode output
The connection that end passes through miniature circuit breaker QF2 and the cathode-KM of DC power supply.
Further, the electrification display circuit includes sensor SEN, electrification display GSN, is latched expanded circuit, is preceding
Door exclusive circuit and back door exclusive circuit；The three-phase input end of the sensor respectively with the A phase line of three phase mains, B phase line and C
Phase line connection, the three-phase output end of the sensor are separately connected three-phase input end a, b and c of electrification display GSN, ground terminal
It is connect with power ground；The cathode output end of the electrification display GSN is passing through the first miniature circuit breaker QF1 and DC power supply just
The connection of pole+KM, cathode output end by the connection of the cathode-KM of the second miniature circuit breaker QF1 and DC power supply, ground terminal with
Power ground connection；The front door exclusive circuit and back door exclusive circuit are in parallel, and head end accesses the control terminal of electrification display GSN
The cathode output end of electrification display GSN is accessed in sub- K2, end；The head end of the locking expanded circuit accesses electrification display
The cathode output end of electrification display GSN is accessed in the control terminal K1 of GSN, end.
Further, the locking expanded circuit includes concatenated intermediate relay KA0 and electromagnetic lock DSN0, the front door
Exclusive circuit includes concatenated intermediate relay KA1 and electromagnetic lock DSN1；The back door exclusive circuit includes that first via back door is closed
Lock circuit and first via back door exclusive circuit, first via back door exclusive circuit and first via back door exclusive circuit are in parallel, institute
Stating first via back door exclusive circuit includes concatenated intermediate relay KA2 and electromagnetic lock DSN2, second tunnel back door locking electricity
Road includes concatenated intermediate relay KA3 and electromagnetic lock DSN3.
Further, the control circuit further includes temperature and humidity control circuit, and the anode of the temperature and humidity control circuit is defeated
Enter the firewire L connection that end passes through third miniature circuit breaker QF2 and AC power source, negative input passes through the 4th miniature circuit breaker
The zero curve N connection of QF2 and AC power source.
Further, the temperature and humidity controller includes temperature and humidity controller WSK and the automatic heating and dehumidification circuit of two-way；The
Automatic heating and dehumidification circuit includes the first humidity sensor and heater JR1 all the way, and the automatic heating and dehumidification circuit of the first via includes
Second humidity sensor and heater JR2；First humidity sensor accesses between 6 and 7 terminals of temperature and humidity controller WSK, the
Two humidity sensors access between 3 and 4 terminals of temperature and humidity controller WSK, and heater JR1 accesses the 8 of temperature and humidity controller WSK
And 9 between terminal, heater JR2 is accessed between 1 and 2 terminals of temperature and humidity controller WSK；The both ends of the heater JR1 point
It is not connect with the 8th pin of the temperature and humidity controller WSK and the 9th pin；The both ends of the fan FS respectively with it is described warm and humid
Spend the 6th pin and the connection of the 7th pin of controller WSK；The both ends of the temperature sensor respectively with the temperature and humidity controller
The 3rd pin of WSK and the connection of the 1st pin, in-between terminal are connect with the 2nd pin of the temperature and humidity controller WSK.
Further, the temperature and humidity controller further includes control room's lighting circuit and cable vault's lighting circuit；The instrument
The head end of table room lighting circuit and cable vault's lighting circuit passes through third miniature circuit breaker QF2 and the firewire L of AC power source connects
Connect, end passes through the zero curve N connection of the 4th miniature circuit breaker QF2 and AC power source, control room's lighting circuit include according to
Secondary concatenated first rotary switch and the first headlamp EL1, cable vault's lighting circuit include the second rotary switch and second
Headlamp EL2.
Beneficial effects of the present invention:
The present invention realizes the active and standby function of measuring of important Electricity customers kilowatt-hour meter, improve continuous data stability and
Reliability reduces the extremely caused loss of charging for power supply company, is suitable for except important Electricity customers, has extensive promote
Value.
Detailed description of the invention
Fig. 1 is that a kind of three phase mains of control circuit of photo-voltaic power generation station 10kV metering cabinet provided in an embodiment of the present invention connects
Connect schematic diagram；
Fig. 2 is a kind of voltage measurement electricity of control circuit of photo-voltaic power generation station 10kV metering cabinet provided in an embodiment of the present invention
Road connection schematic diagram；
Fig. 3 is that a kind of electrification of control circuit of photo-voltaic power generation station 10kV metering cabinet provided in an embodiment of the present invention shows electricity
Road connection schematic diagram；
Fig. 4 is a kind of Temperature and Humidity Control of the control circuit of photo-voltaic power generation station 10kV metering cabinet provided in an embodiment of the present invention
Circuit connection diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only present invention a part, instead of all the embodiments.Based on the present invention
In embodiment, all other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
As shown in Figs 1-4, the control circuit of photo-voltaic power generation station 10kV metering cabinet provided by the invention, including three phase mains,
Voltage measurement circuit, electrification display circuit and temperature and humidity control circuit.
Wherein, the voltage measurement circuit includes three-phase three wire terminal box JXH, electric energy meter PJ1, electric energy meter PJ2, electric energy meter
PJ3, electric energy meter PJ4, electric energy meter PJ5, electric energy meter PJ6, electric energy meter PJ7, electric energy meter PJ8, the first current transformer TAa and second
Current transformer TAc, A phase line, B phase line and the C phase line of three phase mains pass through the first high-tension fuse 1RD, the second high pressure respectively
Voltage transformer is accessed after fuse 2RD and third high-tension fuse 3RD, and is respectively connected to three after voltage transformer transformation
1 terminal, 6 terminals and 9 terminals of three line terminal box JXH of phase；Three-phase three is accessed after the electric energy meter PJ1 and electric energy meter PJ2 series connection
Between the 4 ' terminals and 6 ' terminals of line terminal box JXH；Access phase three-wire three connects after the electric energy meter PJ3 and electric energy meter PJ4 series connection
Between the 10 ' terminals and 12 ' terminals of wire box JXH；4 and 8 terminal grounds of the three-phase three wire terminal box JXH, 3 terminals pass through the
One current transformer TAa ground connection, 7 terminals are grounded by the second current transformer TAc；The electric energy meter PJ5 and electric energy meter PJ7 string
Connection forms first via output metering circuit, and head end is connect with the 1 ' terminal of three-phase three wire terminal box JXH, end and 13 ' terminals
Connection, intermediate ends are connect with 7 ' terminals；The electric energy meter PJ6 and electric energy meter PJ8 connects to form the second tunnel output metering circuit,
Head end is connect with the 2 ' terminals of three-phase three wire terminal box JXH, and end is connect with 14 ' terminals, and intermediate ends are connect with 8 ' terminals.
Wherein, the three-phase three wire terminal box JXH goes out terminal box using the one into three of the magnificent model DYF-2 for interrogating electric appliance,
1-9 is its terminal for connection of facing side, and 1 ' -15 ' be its rear connection terminal.
Wherein, the electrification display circuit includes that sensor SEN, electrification display GSN, locking expanded circuit, front door are closed
Lock circuit and back door exclusive circuit；The three-phase input end of the sensor respectively with the A phase line of three phase mains, B phase line and C phase line
Connection, the three-phase output end of the sensor are separately connected three-phase input end a, b and c of electrification display GSN, ground terminal and electricity
Connect to source；The cathode output end of the electrification display GSN by the anode of the first miniature circuit breaker QF1 and DC power supply+
The connection of KM, cathode output end pass through the connection of the cathode-KM of the second miniature circuit breaker QF1 and DC power supply, ground terminal and electricity
Connect to source；The front door exclusive circuit and back door exclusive circuit are in parallel, and head end accesses the control terminal of electrification display GSN
The cathode output end of electrification display GSN is accessed in K2, end；The head end of the locking expanded circuit accesses electrification display GSN
Control terminal K1, end access electrification display GSN cathode output end.
The locking expanded circuit includes concatenated intermediate relay KA0 and electromagnetic lock DSN0, the front door exclusive circuit
Including concatenated intermediate relay KA1 and electromagnetic lock DSN1；The back door exclusive circuit include first via back door exclusive circuit and
First via back door exclusive circuit, first via back door exclusive circuit and first via back door exclusive circuit are in parallel, the first via
Back door exclusive circuit includes concatenated intermediate relay KA2 and electromagnetic lock DSN2, and second tunnel back door exclusive circuit includes string
The intermediate relay KA3 and electromagnetic lock DSN3 of connection.
Wherein, the electrode input end of the temperature and humidity control circuit passes through third miniature circuit breaker QF2 and AC power source
Firewire L connection, negative input pass through the zero curve N connection of the 4th miniature circuit breaker QF2 and AC power source.
Wherein, the temperature and humidity controller includes temperature and humidity controller WSK and the automatic heating and dehumidification circuit of two-way；The temperature
The electrode input end of humidity controller WSK passes through the firewire L connection of third miniature circuit breaker QF2 and AC power source, cathode input
End passes through the zero curve N connection of the 4th miniature circuit breaker QF2 and AC power source；The automatic heating and dehumidification circuit of the first via includes first wet
Sensor and heater JR1 are spent, the automatic heating and dehumidification circuit of the first via includes the second humidity sensor and heater JR2；First
Humidity sensor accesses between 6 and 7 terminals of temperature and humidity controller WSK, and the second humidity sensor accesses temperature and humidity controller WSK
3 and 4 terminals between, heater JR1 access temperature and humidity controller WSK 8 and 9 terminals between, heater JR2 access temperature and humidity
Between 1 and 2 terminals of controller WSK；The both ends of the heater JR1 the 8th pin with the temperature and humidity controller WSK respectively
It is connected with the 9th pin；The both ends of the fan FS connect with the 6th pin of the temperature and humidity controller WSK and the 7th pin respectively
It connects；The both ends of the temperature sensor are connect with the 3rd pin of the temperature and humidity controller WSK and the 1st pin respectively, among it
Terminal is connect with the 2nd pin of the temperature and humidity controller WSK.
In addition, the temperature and humidity controller further includes control room's lighting circuit and cable vault's lighting circuit；The control room
The head end of lighting circuit and cable vault's lighting circuit passes through the firewire L connection of third miniature circuit breaker QF2 and AC power source, end
End passes through the zero curve N connection of the 4th miniature circuit breaker QF2 and AC power source, and control room's lighting circuit includes being sequentially connected in series
The first rotary switch SF and the first headlamp EL1, cable vault's lighting circuit include the second rotary switch and second illumination
Lamp EL2.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of control circuit of photo-voltaic power generation station 10kV metering cabinet, which is characterized in that including three phase mains and voltage measurement electricity
Road, the voltage measurement circuit include three-phase three wire terminal box JXH, electric energy meter PJ1, electric energy meter PJ2, electric energy meter PJ3, electric energy meter
PJ4, electric energy meter PJ5, electric energy meter PJ6, electric energy meter PJ7, electric energy meter PJ8, the first current transformer TAa and the second current transformer
TAc, A phase line, B phase line and the C phase line of three phase mains pass through respectively the first high-tension fuse 1RD, the second high-tension fuse 2RD and
Voltage transformer is accessed after third high-tension fuse 3RD, and is respectively connected to phase three-wire three wiring after voltage transformer transformation
1 terminal, 6 terminals and 9 terminals of box JXH；Three-phase three wire terminal box JXH is accessed after the electric energy meter PJ1 and electric energy meter PJ2 series connection
4 ' terminals and 6 ' terminals between；The 10 ' of three-phase three wire terminal box JXH is accessed after the electric energy meter PJ3 and electric energy meter PJ4 series connection
Between terminal and 12 ' terminals；4 and 8 terminal grounds of the three-phase three wire terminal box JXH, 3 terminals pass through the first current transformer
TAa ground connection, 7 terminals are grounded by the second current transformer TAc；The electric energy meter PJ5 and electric energy meter PJ7 connect to form the first via
Export metering circuit, head end connect with the 1 ' terminal of three-phase three wire terminal box JXH, and end is connect with 13 ' terminals, intermediate ends and
The connection of 7 ' terminals；The electric energy meter PJ6 and electric energy meter PJ8 connects to form the second tunnel output metering circuit, head end and three-phase three
2 ' the terminals of line terminal box JXH connect, and end is connect with 14 ' terminals, and intermediate ends are connect with 8 ' terminals.
2. the control circuit of photo-voltaic power generation station 10kV metering cabinet according to claim 1, which is characterized in that the control electricity
Road further includes electrification display circuit, and the input terminal of the electrification display circuit is connect with the three phase mains, and cathode output end is logical
The connection of the anode+KM of miniature circuit breaker QF1 and DC power supply is crossed, cathode output end passes through miniature circuit breaker QF2 and direct current
The connection of the cathode-KM in source.
3. the control circuit of photo-voltaic power generation station 10kV metering cabinet according to claim 2, which is characterized in that the electrification is aobvious
Show that circuit includes sensor SEN, electrification display GSN, locking expanded circuit, front door exclusive circuit and back door exclusive circuit；Institute
The three-phase input end for stating sensor is connect with the A phase line of three phase mains, B phase line and C phase line respectively, and the three-phase of the sensor is defeated
Outlet is separately connected three-phase input end a, b and c of electrification display GSN, and ground terminal is connect with power ground；The electrification display
The cathode output end of GSN passes through the connection of the anode+KM of the first miniature circuit breaker QF1 and DC power supply, and cathode output end passes through
The connection of the cathode-KM of second miniature circuit breaker QF1 and DC power supply, ground terminal are connect with power ground；The front door locking electricity
Road and back door exclusive circuit are in parallel, and head end accesses the control terminal K2 of electrification display GSN, and electrification display is accessed in end
The cathode output end of GSN；The control terminal K1 of the head end access electrification display GSN of the locking expanded circuit, end access
The cathode output end of electrification display GSN.
4. the control circuit of photo-voltaic power generation station 10kV metering cabinet according to claim 3, which is characterized in that the locking is expanded
Opening up circuit includes concatenated intermediate relay KA0 and electromagnetic lock DSN0, and the front door exclusive circuit includes concatenated intermediate relay
Device KA1 and electromagnetic lock DSN1；The back door exclusive circuit includes first via back door exclusive circuit and first via back door exclusive circuit,
First via back door exclusive circuit and first via back door exclusive circuit are in parallel, and first via back door exclusive circuit includes series connection
Intermediate relay KA2 and electromagnetic lock DSN2, second tunnel back door exclusive circuit includes concatenated intermediate relay KA3 and electricity
Magnetic padlock DSN3.
5. the control circuit of photo-voltaic power generation station 10kV metering cabinet according to claim 1, which is characterized in that the control electricity
Road further includes temperature and humidity control circuit, the electrode input end of the temperature and humidity control circuit by third miniature circuit breaker QF2 with
The firewire L connection of AC power source, negative input pass through the zero curve N connection of the 4th miniature circuit breaker QF2 and AC power source.
6. the control circuit of photo-voltaic power generation station 10kV metering cabinet according to claim 5, which is characterized in that the temperature and humidity
Controller includes temperature and humidity controller WSK and the automatic heating and dehumidification circuit of two-way；The automatic heating and dehumidification circuit of the first via includes the
One humidity sensor and heater JR1, the automatic heating and dehumidification circuit of the first via include the second humidity sensor and heater JR2；
First humidity sensor accesses between 6 and 7 terminals of temperature and humidity controller WSK, and the second humidity sensor accesses Temperature and Humidity Control
Between 3 and 4 terminals of device WSK, heater JR1 is accessed between 8 and 9 terminals of temperature and humidity controller WSK, heater JR2 access
Between 1 and 2 terminals of temperature and humidity controller WSK；The both ends of the heater JR1 are respectively with the temperature and humidity controller WSK's
8th pin and the connection of the 9th pin；The both ends of the fan FS the 6th pin and the 7th with the temperature and humidity controller WSK respectively
Pin connection；The both ends of the temperature sensor are connect with the 3rd pin of the temperature and humidity controller WSK and the 1st pin respectively,
In-between terminal is connect with the 2nd pin of the temperature and humidity controller WSK.
7. the control circuit of photo-voltaic power generation station 10kV metering cabinet according to claim 6, which is characterized in that the temperature and humidity
Controller further includes control room's lighting circuit and cable vault's lighting circuit；Control room's lighting circuit and cable vault's lighting circuit
Head end pass through the firewire L connection of third miniature circuit breaker QF2 and AC power source, end passes through the 4th miniature circuit breaker
The zero curve N connection of QF2 and AC power source, control room's lighting circuit include that the first rotary switch being sequentially connected in series and first are shone
Bright lamp EL1, cable vault's lighting circuit include the second rotary switch and the second headlamp EL2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457937.4A CN110308675A (en) | 2019-05-29 | 2019-05-29 | A kind of control circuit of photo-voltaic power generation station 10kV metering cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457937.4A CN110308675A (en) | 2019-05-29 | 2019-05-29 | A kind of control circuit of photo-voltaic power generation station 10kV metering cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN110308675A true CN110308675A (en) | 2019-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910457937.4A Pending CN110308675A (en) | 2019-05-29 | 2019-05-29 | A kind of control circuit of photo-voltaic power generation station 10kV metering cabinet |
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| CN204117459U (en) * | 2014-11-20 | 2015-01-21 | 国家电网公司 | Typical low pressure fault handling training platform device |
| CN204650269U (en) * | 2015-06-09 | 2015-09-16 | 国家电网公司 | A kind of device status monitoring and error correction device |
| CN107656116A (en) * | 2017-09-15 | 2018-02-02 | 国网辽宁省电力有限公司锦州供电公司 | The important active and standby metering method of Electricity customers kilowatt-hour meter |
| CN207082039U (en) * | 2017-08-15 | 2018-03-09 | 宁夏大有电气集团有限公司 | High-voltage metering cubicle |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2670950Y (en) * | 2003-12-26 | 2005-01-12 | 周友东 | Remote check-up device for high voltage power kilowatt metering box |
| CN2831550Y (en) * | 2005-08-10 | 2006-10-25 | 武汉昌华电气设备有限公司 | Sulfur hexafluoride load-break switch electricity management metering cabinet |
| CN201887340U (en) * | 2010-11-02 | 2011-06-29 | 厦门电力成套设备有限公司 | Strong-current locking device of high-voltage switch cabinet door |
| US20140252856A1 (en) * | 2013-03-06 | 2014-09-11 | Chung Shan Institute Of Science And Technology, Armaments Bureau, M.N.D | Power consuming management system |
| CN204117459U (en) * | 2014-11-20 | 2015-01-21 | 国家电网公司 | Typical low pressure fault handling training platform device |
| CN204650269U (en) * | 2015-06-09 | 2015-09-16 | 国家电网公司 | A kind of device status monitoring and error correction device |
| CN207082039U (en) * | 2017-08-15 | 2018-03-09 | 宁夏大有电气集团有限公司 | High-voltage metering cubicle |
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