CN201750078U - Intelligent remote control box type substation - Google Patents

Intelligent remote control box type substation Download PDF

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Publication number
CN201750078U
CN201750078U CN2010202870196U CN201020287019U CN201750078U CN 201750078 U CN201750078 U CN 201750078U CN 2010202870196 U CN2010202870196 U CN 2010202870196U CN 201020287019 U CN201020287019 U CN 201020287019U CN 201750078 U CN201750078 U CN 201750078U
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China
Prior art keywords
circuit
low pressure
switch control
type substation
control cubicle
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Expired - Lifetime
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CN2010202870196U
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Chinese (zh)
Inventor
钱柏贤
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HENAN BOYUAN COMPLETE ELECTRIC CO Ltd
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HENAN BOYUAN COMPLETE ELECTRIC CO Ltd
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Priority to CN2010202870196U priority Critical patent/CN201750078U/en
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Abstract

The utility model provides an intelligent remote control box type substation. The substation comprises a 6 to 10kV high voltage circuit breaker, a power distribution transformer, a low voltage main switch control cabinet, a low voltage reactive compensation cabinet, a low voltage branch switch control cabinet, a metering device, a temperature measurement device, a burglar alarm device, a remote automatic control terminal, and a power station computer, a power administrator mobile phone and a mobile communication base station which are connected with bidirectional communication modules. The remote automatic control terminal comprises a single chip microcomputer circuit, a power parameter detection circuit, a harmonic detection and analysis unit circuit, a transmitting and receiving communication module, an output control signal circuit, a switch state detection circuit and a data communication interface circuit. The single chip microcomputer circuit is respectively connected with the power parameter detection circuit, the harmonic detection and analysis unit circuit, the switch state detection circuit, the output control signal circuit, the data communication interface circuit and the transmitting and receiving communication module. The utility model has the advantages of economy, practicability, convenient use, efficient running and adaptability to national development.

Description

Intelligent remote monitoring box-type substation
Technical field
The utility model relates to a kind of box-type substation that is used for distribution network, specifically, relates to a kind of intelligent remote monitoring box-type substation.
Background technology
Usually, the box-type substation that in distribution system, adopts, the box-type substation that designs and produces for traditional type, this box-type substation is in actual motion, though made things convenient for professional electricity consumer (street lamp dedicated transformer, residential quarter dedicated transformer, drainage and irrigation hyelectric power dedicated transformer, temporary electricity place, job site etc.) electricity consumption, yet,, aspect the electric control maintenance management, all have certain defective because of the particularity in its electricity consumption place.
Along with the further research of automation control box-type substation technology, will speed up the process of box-type substation automation control; At present, the automation of electric power system control box-type substation technology has only just begun starting, but because actuator and data channel infusion of financial resources demand are big, so fail to be generalizable always comprehensively;
For intelligent remote monitoring box-type substation, because the cost of end-equipment own is lower, then the corresponding requirements corollary equipment has adaptable cost especially, promptly requires us must consider the designing technique economy;
And for realizing intelligent remote monitoring box-type substation, significant to electric power system, especially the current domestic peak of power consumption period, under the situation of supply of electric power deficiency, need the refinement management of power use especially, can be to the also energy remote measurement of the direct distribution load of terminal temperature difference, remote control, so that load control is terminal to power supply;
The intelligent remote monitoring box-type substation technology will play great improvement effect to the controller switching equipment safe operation, at the box-type substation and the controller switching equipment thereof of operation, owing to can not monitor in real time, be out of order basically at present, be overhauled by user notification; Power supply quality is low, device damage rate height; If can popularize and adapt to the transformation needs of intelligent remote monitoring box-type substation in an all-round way, can play crucial effects the technological progress of intelligent remote monitoring box-type substation.
For solving the problem of above existence, people are seeking a kind of desirable technical solution that more is tending towards always.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, thus provide a kind of economical and practical, easy to use, operation is efficient, be suitable for the intelligent remote monitoring box-type substation of national conditions development.
The purpose of this utility model is to realize by following technical scheme:
A kind of intelligent remote monitoring box-type substation comprises 6-10KV primary cut-out, distribution transformer, low pressure main switch control cubicle, low-pressure reactive compensation cabinet, low pressure branch switch control cubicle, metering device, temperature measuring equipment, anti-theft device, remote auto control terminal and the power supply station's computer, power management staff's mobile phone and the mobile communication base station that are connected with bi-directional communication modules;
Described remote auto control terminal comprises single chip circuit, electrical parameters detection circuit, harmonic wave check and analysis element circuit, emission received communication module, output control signal circuit, on off state testing circuit and data communication interface circuit; Described single chip circuit is connected to read various parameters of electric power with described electrical parameters detection circuit, described harmonic wave check and analysis element circuit, described on off state testing circuit respectively; Described single chip circuit is connected to finish the output of control signal with described output control signal circuit; Described single chip circuit is connected with described data communication interface circuit to finish and the communicating by letter of ancillary equipment; Described single chip circuit is connected with described emission received communication module to finish emission and to receive information;
Described output control signal circuit, described on off state testing circuit connect described 6-10KV primary cut-out respectively, are used for by described remote auto control terminal realization the break-make of described 6-10KV primary cut-out being controlled and being detected the on off state of described 6-10KV primary cut-out;
Described output control signal circuit, described on off state testing circuit connect described low pressure main switch control cubicle respectively, are used for by described remote auto control terminal realization the break-make of described low pressure main switch control cubicle being controlled and being detected the on off state of described low pressure main switch control cubicle;
Described output control signal circuit, described on off state testing circuit connect each shunt circuitbreaker of described low pressure branch switch control cubicle respectively, are used for by described remote auto control terminal realization the break-make of described each shunt circuitbreaker of low pressure branch switch control cubicle being controlled and being detected the on off state of described each shunt circuitbreaker of low pressure branch switch control cubicle;
The input of described metering device connects connecting line end of incoming cables of described low pressure main switch control cubicle, its output connects described electrical parameters detection circuit, is used for by voltage signal, current signal, the three-phase imbalance current signal collection of described remote auto control terminal realization to described low pressure main switch control cubicle;
Described harmonic wave check and analysis element circuit includes harmonic wave check and analysis integrated chip and harmonic wave signal acquisition circuit; The leading-out terminal of described distribution transformer connects described harmonic signal Acquisition Circuit, is used for by the harmonic signal check and analysis of described remote auto control terminal realization to described distribution transformer;
Described temperature measuring equipment is a digital temperature sensor, its input connects described distribution transformer, its output is connected with described single chip circuit, is used for realizing the selection of temperature signal of described distribution transformer is reported to the police with the temperature anomaly of finishing described distribution transformer by described single chip circuit;
Described anti-theft device is the permanent magnetism reed switch relay, and its input connects described metering device chamber door, and its output is connected with described single chip circuit, is used for by the unpacking warning of described single chip circuit realization to described metering device;
Described mobile communication base station is for providing mobile network services between described power supply station computer, described power management staff's mobile phone and the described emission received communication module.
Based on above-mentioned, described 6-10KV primary cut-out is high voltage permanent vacuum circuit-breaker or the high-voltage electric switch that is provided with electric operating mechanism.
Based on above-mentioned, described distribution transformer is the transformer of 6-10KV/400V.
Based on above-mentioned, described low pressure main switch control cubicle is a kind of circuit breaker of motor-operating mechanism or low pressure main switch control cubicle of magnetic latching contactor or A.C. contactor of being provided with.
Based on above-mentioned, described low pressure branch switch control cubicle is a kind of automatic circuit breaker of the charged pneumatic operating mechanism of multichannel or low pressure branch switch control cubicle of A.C. contactor of being provided with.
Based on above-mentioned, described metering device is a kind ofly to be provided with 0.2 grade of current transformer and the three-phase and four-line electronic type has/metering device of reactive energy-meter.
The utility model has substantive distinguishing features and progress with respect to prior art, specifically, this intelligent remote monitoring box-type substation can be controlled by comparatively economic, desirable realization remote automation, its designing technique has the high characteristics of economy price ratio, realize Automation of Electric Systems control for developing country, will play positive facilitation;
This intelligent remote monitoring box-type substation utilizes computer technology, single-chip microcomputer detection, control technology and wireless mobile telecommunication technology, thus a kind of automation control box-type substation that is used for of exploitation.The digitlization of its Long-distance Control protection, real-time status and Data Detection function, intelligentized effect; combine with mobile communication network, computer software and power management staff's mobile phone; can constitute automatic protection, remote measurement, remote control, the remote signalling of intelligent remote monitoring box-type substation; and form the distribution safe operation centralized monitoring system of electric power system thus; realize the terminal temperature difference load monitoring, and can realize the using electricity automation management by remote measurement, remote control, remote signalling.
Description of drawings
Fig. 1 is an operation principle schematic diagram of the present utility model;
Fig. 2 is the schematic diagram of data communication interface circuit described in the utility model;
Fig. 3 is the schematic diagram of electrical parameters detection circuit described in the utility model;
Fig. 4 is the schematic diagram of single chip circuit described in the utility model;
Fig. 5 is the schematic diagram of emission received communication module described in the utility model;
Fig. 6 is the schematic diagram of output control signal circuit described in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
As shown in Figure 1, a kind of intelligent remote monitoring box-type substation comprises 6-10KV primary cut-out, distribution transformer, low pressure main switch control cubicle, low-pressure reactive compensation cabinet, low pressure branch switch control cubicle, metering device, temperature measuring equipment, anti-theft device, remote auto control terminal and the power supply station's computer, power management staff's mobile phone and the mobile communication base station that are connected with bi-directional communication modules;
Described 6-10KV primary cut-out one end is connected in the 6-10KV high voltage source, and the other end is connected in the high-pressure side of described distribution transformer; The low-pressure side of described distribution transformer is connected in described low pressure main switch control cubicle; The other end of described low pressure main switch control cubicle is connected in described low-pressure reactive compensation cabinet, described low pressure branch switch control cubicle, described metering device simultaneously, and constitutes the major loop of box-type substation with this.
Described remote automation control terminal, described temperature measuring equipment, described anti-theft device and be connected with power supply station's computer of computer bidirectional communication module, described power management staff's mobile phone and described mobile communication base station constitute remote automation control and management system.
Described remote auto control terminal comprises single chip circuit, electrical parameters detection circuit, harmonic wave check and analysis element circuit, emission received communication module, output control signal circuit, on off state testing circuit and data communication interface circuit; Described single chip circuit is connected to read various parameters of electric power with described electrical parameters detection circuit, described harmonic wave check and analysis element circuit, described on off state testing circuit respectively; Described single chip circuit is connected to finish the output of control signal with described output control signal circuit; Described single chip circuit is connected with described data communication interface circuit to finish and the communicating by letter of ancillary equipment; Described single chip circuit is connected with described emission received communication module to finish emission and to receive information;
Described 6-10KV primary cut-out is high voltage permanent vacuum circuit-breaker or the high-voltage electric switch that is provided with electric operating mechanism; Described output control signal circuit, described on off state testing circuit connect the permanent magnet opening and closing of described 6-10KV primary cut-out respectively, are used for by described remote auto control terminal realization the break-make of described 6-10KV primary cut-out being controlled and being detected the on off state of described 6-10KV primary cut-out;
Described low pressure main switch control cubicle is a kind of circuit breaker of motor-operating mechanism or low pressure main switch control cubicle of magnetic latching contactor or A.C. contactor of being provided with; Described output control signal circuit, described on off state testing circuit connect circuit breaker or the magnetic latching contactor or the A.C. contactor of described low pressure main switch control cubicle respectively, are used for by described remote auto control terminal realization the break-make of described low pressure main switch control cubicle being controlled and being detected the on off state of described low pressure main switch control cubicle;
Described low pressure branch switch control cubicle is a kind of automatic circuit breaker of the charged pneumatic operating mechanism of multichannel or low pressure branch switch control cubicle of A.C. contactor of being provided with; Described output control signal circuit, described on off state testing circuit connect each shunt circuitbreaker or the A.C. contactor of described low pressure branch switch control cubicle respectively, are used for by described remote auto control terminal realization the break-make of described each shunt circuitbreaker of low pressure branch switch control cubicle being controlled and being detected the on off state of described each shunt circuitbreaker of low pressure branch switch control cubicle or A.C. contactor;
Described metering device is a kind ofly to be provided with 0.2 grade of current transformer and the three-phase and four-line electronic type has/metering device of reactive energy-meter; The input of described metering device connects connecting line end of incoming cables of described low pressure main switch control cubicle, its output connects described electrical parameters detection circuit, is used for by voltage signal, current signal, the three-phase imbalance current signal collection of described remote auto control terminal realization to described low pressure main switch control cubicle;
Described harmonic wave check and analysis element circuit includes harmonic wave check and analysis integrated chip and harmonic wave signal acquisition circuit; The leading-out terminal of described distribution transformer connects described harmonic signal Acquisition Circuit, is used for by the harmonic signal check and analysis of described remote auto control terminal realization to described distribution transformer;
Described distribution transformer is the transformer of 6-10KV/400V; Described temperature measuring equipment is a digital temperature sensor, its input is installed on the fuel tank of described distribution transformer, its output is connected with described single chip circuit, is used for realizing the fuel tank selection of temperature signal of described distribution transformer is reported to the police with the temperature anomaly of finishing described distribution transformer by described single chip circuit;
Described anti-theft device is the permanent magnetism reed switch relay, and its input connects described metering device chamber door, and its output is connected with described single chip circuit, is used for by the unpacking warning of described single chip circuit realization to described metering device;
Described mobile communication base station is for providing mobile network services between described power supply station computer, described power management staff's mobile phone and the described emission received communication module.
For Remote, remote measurement process, be that described emission received communication module receives in real time the control note instruction of sending from power supply station's computer or power management staff's mobile phone, as: check meter, control outage, control and send electricity etc., after receiving note by described emission received communication module, assert by analysis by described single chip circuit, and make corresponding actions, and as: on-the-spot real time data is sent back to or on-the-spot high-low pressure circuit breaker of start and stop or A.C. contactor etc.
The input of described on off state testing circuit is connected in the auxiliary contact of switchgear, and the other end is connected in single chip circuit to read the contact switch state; Described on off state testing circuit can detect the on off operating mode of 6-10KV primary cut-out and switchgears such as 400V/220V circuit breaker or A.C. contactor, and by the single chip circuit control and treatment.
As shown in Figure 2, described data communication interface circuit is that one two unit connects to carry out the data transmission by two 485 communication units; Described data communication interface circuit is a kind of RS-485 serial data communication circuit, realizes remote online monitoring, remote meter reading and using electricity automation management by described data communication interface circuit.
As shown in Figure 3, described electrical parameters detection circuit is an electric parameter measurement integrated chip, by the electric parameter measurement integrated chip voltage, the current measurement signal that collects inserted single-chip microcomputer respectively, calculate electrical quantitys such as active energy by Single-chip Controlling and output to the teletransmission unit; Electrical energy pulse is isolated output by the light idol.
As shown in Figure 4, described single chip circuit is to be the Circuits System of technological core with the single-chip microcomputer, and it is connected with the electrical parameters detection circuit, the control computation of electrical; It is connected with harmonic wave check and analysis element circuit, is used for the harmonic wave check and analysis; It connects with emission received communication module, and the work of control transmitter module is in order to finish the transmission of electrical quantity and abnormal alarm and phenomenon of the failure and troubleshooting methodology; It connects with output control signal circuit, and whether switching devices is connected disjunction processing instruction etc. in order to finish output control signal port; Simultaneously, it is that the teletransmission unit is connected with the data communication interface circuit, carries out transfer of data, and electrical quantity is sent into the teletransmission unit.
As shown in Figure 5, described emission received communication module is a communications transmit receiver module chip, and itself and Single Chip Microcomputer (SCM) system two-way communication are sent alarm signal or parameters of electric power with short message mode, and being used to receive the work note, its course of work is controlled by Single Chip Microcomputer (SCM) system.
As shown in Figure 6, described output control signal circuit one end is connected in the relay tip that output is controlled to be two-way, the other end is connected in microcontroller system circuit, according to note or other its attracting state of control is set and is used to control 6-10KV primary cut-out and switchgears such as 400V/220V circuit breaker or A.C. contactor; Described output control signal circuit is according to note or other control to be set by single-chip microcomputer whether it reports to the police or switching devices is carried out break-make and handled.
As shown in Figure 1, after box-type substation put into operation, under the control of described single chip circuit, described electrical parameters detection circuit in real time, constantly every parameters of electric power is detected and constantly read the detection data, carries out judgment processing; As the case may be, generate corresponding Chinese short message, described Chinese short message is sent to power supply station's computer or power management staff's mobile phone by described emission received communication module by described single chip circuit; For the detection of switching value, directly detect by described switching signal testing circuit; After getting rid of abnormal conditions, can send by power management staff's mobile phone or power supply station's computer starting.
For improper state operation, system also can do simple protective or upload phenomenon of the failure and troubleshooting methodology, such as: the transformer excess temperature.Can generate Chinese short message automatically by single-chip microcomputer uploads and is " phenomenon of the failure: transformer excess temperature.Method for removing: observe whether oil starvation of transformer oil level; Observe whether excess load of ammeter.Increased transformer oil to the oil level line, or adjusted the cutoff load ".And for example: the three-phase load imbalance.Can by single-chip microcomputer generate automatically Chinese short message upload into: " phenomenon of the failure: three-phase load is extremely uneven.Method for removing: observe the power consumption of the designation data or the every phase line of foundation of three-phase current table, the adjustment of loading makes it three-phase load and tends to balance " or the like.
Described bi-directional communication modules be a kind ofly be used to connect computer, the communication module of reporting to the police or the parameters of electric power of instruction of disconnect break-make or needs sends and receives with short message mode; Described power supply station computer is a common computer, i.e. terminal computer; Described power management staff's mobile phone is the regular handset that distribution system electrician management personnel are used for work; Described mobile communication base station can provide the mobile network to serve for described power management staff's mobile phone.
The design of this intelligent remote monitoring box-type substation, the comparatively automation control of economic, desirable realization box-type substation, but expanded application is, make each station power distribution transformer all become unattended operation transformer station, it will play positive facilitation for developing country's realization box-type substation automation control.

Claims (6)

1. intelligent remote monitoring box-type substation, comprise 6-10KV primary cut-out, distribution transformer, low pressure main switch control cubicle, low-pressure reactive compensation cabinet, low pressure branch switch control cubicle, it is characterized in that: power supply station's computer, power management staff's mobile phone and mobile communication base station that this box-type substation also comprises metering device, temperature measuring equipment, anti-theft device, remote auto control terminal and is connected with bi-directional communication modules; Described remote auto control terminal comprises single chip circuit, electrical parameters detection circuit, harmonic wave check and analysis element circuit, emission received communication module, output control signal circuit, on off state testing circuit and data communication interface circuit; Described single chip circuit is connected to read various parameters of electric power with described electrical parameters detection circuit, described harmonic wave check and analysis element circuit, described on off state testing circuit respectively; Described single chip circuit is connected to finish the output of control signal with described output control signal circuit; Described single chip circuit is connected with described data communication interface circuit to finish and the communicating by letter of ancillary equipment; Described single chip circuit is connected with described emission received communication module to finish emission and to receive information; Described output control signal circuit, described on off state testing circuit connect described 6-10KV primary cut-out respectively, are used for by described remote auto control terminal realization the break-make of described 6-10KV primary cut-out being controlled and being detected the on off state of described 6-10KV primary cut-out; Described output control signal circuit, described on off state testing circuit connect described low pressure main switch control cubicle respectively, are used for by described remote auto control terminal realization the break-make of described low pressure main switch control cubicle being controlled and being detected the on off state of described low pressure main switch control cubicle; Described output control signal circuit, described on off state testing circuit connect each shunt circuitbreaker of described low pressure branch switch control cubicle respectively, are used for by described remote auto control terminal realization the break-make of described each shunt circuitbreaker of low pressure branch switch control cubicle being controlled and being detected the on off state of described each shunt circuitbreaker of low pressure branch switch control cubicle; The input of described metering device connects connecting line end of incoming cables of described low pressure main switch control cubicle, its output connects described electrical parameters detection circuit, is used for by voltage signal, current signal, the three-phase imbalance current signal collection of described remote auto control terminal realization to described low pressure main switch control cubicle; Described harmonic wave check and analysis element circuit includes harmonic wave check and analysis integrated chip and harmonic wave signal acquisition circuit; The leading-out terminal of described distribution transformer connects described harmonic signal Acquisition Circuit, is used for by the harmonic signal check and analysis of described remote auto control terminal realization to described distribution transformer; Described temperature measuring equipment is a digital temperature sensor, its input connects described distribution transformer, its output is connected with described single chip circuit, is used for realizing the selection of temperature signal of described distribution transformer is reported to the police with the temperature anomaly of finishing described distribution transformer by described single chip circuit; Described anti-theft device is the permanent magnetism reed switch relay, and its input connects described metering device chamber door, and its output is connected with described single chip circuit, is used for by the unpacking warning of described single chip circuit realization to described metering device; Described mobile communication base station is for providing mobile network services between described power supply station computer, described power management staff's mobile phone and the described emission received communication module.
2. a kind of intelligent remote monitoring box-type substation according to claim 1 is characterized in that: described 6-10KV primary cut-out is high voltage permanent vacuum circuit-breaker or the high-voltage electric switch that is provided with electric operating mechanism.
3. a kind of intelligent remote monitoring box-type substation according to claim 1 is characterized in that: described distribution transformer is the transformer of 6-10KV/400V.
4. a kind of intelligent remote monitoring box-type substation according to claim 1 is characterized in that: described low pressure main switch control cubicle is a kind of circuit breaker of motor-operating mechanism or low pressure main switch control cubicle of magnetic latching contactor or A.C. contactor of being provided with.
5. a kind of intelligent remote monitoring box-type substation according to claim 1 is characterized in that: described low pressure branch switch control cubicle is a kind of automatic circuit breaker of the charged pneumatic operating mechanism of multichannel or low pressure branch switch control cubicle of A.C. contactor of being provided with.
6. a kind of intelligent remote monitoring box-type substation according to claim 1 is characterized in that: described metering device is a kind ofly to be provided with 0.2 grade of current transformer and the three-phase and four-line electronic type has/metering device of reactive energy-meter.
CN2010202870196U 2010-08-10 2010-08-10 Intelligent remote control box type substation Expired - Lifetime CN201750078U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101908780A (en) * 2010-08-10 2010-12-08 河南博源成套电气有限公司 Intelligent remote monitoring box-type substation
CN102790427A (en) * 2012-07-16 2012-11-21 河南省电力公司信阳供电公司 Electric monitoring and management system for intelligent distribution network
CN102946092A (en) * 2012-12-06 2013-02-27 广州南方电力集团科技发展有限公司 Line transformer protection device with tripping and closing current measuring function
CN103346500A (en) * 2013-06-21 2013-10-09 河南开启电力实业有限公司 Intelligent box-type transformer substation
CN104133444A (en) * 2014-07-25 2014-11-05 人民电器集团上海有限公司 Smart grid satellite network transmission system
DE102013109258A1 (en) 2013-08-27 2015-03-05 Viebrockhaus Ag Mobile power distributor and application device
CN109103782A (en) * 2018-09-12 2018-12-28 深圳市东扬精密工业有限公司 Human bioequivalence intelligent electrical cabinet and its system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101908780A (en) * 2010-08-10 2010-12-08 河南博源成套电气有限公司 Intelligent remote monitoring box-type substation
CN101908780B (en) * 2010-08-10 2012-09-05 河南博源成套电气有限公司 Intelligent remote monitoring box-type substation
CN102790427A (en) * 2012-07-16 2012-11-21 河南省电力公司信阳供电公司 Electric monitoring and management system for intelligent distribution network
CN102946092A (en) * 2012-12-06 2013-02-27 广州南方电力集团科技发展有限公司 Line transformer protection device with tripping and closing current measuring function
CN102946092B (en) * 2012-12-06 2015-08-12 广州南方电力集团科技发展有限公司 A kind of line transformer protective device with breaker tripping and closing current measurement
CN103346500A (en) * 2013-06-21 2013-10-09 河南开启电力实业有限公司 Intelligent box-type transformer substation
DE102013109258A1 (en) 2013-08-27 2015-03-05 Viebrockhaus Ag Mobile power distributor and application device
DE102013109258B4 (en) 2013-08-27 2019-08-14 Viebrockhaus Ag Mobile Building Site Distributor and Application Management Facility
CN104133444A (en) * 2014-07-25 2014-11-05 人民电器集团上海有限公司 Smart grid satellite network transmission system
CN104133444B (en) * 2014-07-25 2017-02-01 人民电器集团上海有限公司 Smart grid satellite network transmission system
CN109103782A (en) * 2018-09-12 2018-12-28 深圳市东扬精密工业有限公司 Human bioequivalence intelligent electrical cabinet and its system
CN109103782B (en) * 2018-09-12 2020-12-15 深圳市东扬精密工业有限公司 Human body recognition intelligent electric box and system thereof

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Granted publication date: 20110216

Effective date of abandoning: 20120905