CN205753649U - A kind of preassembled transformer station intelligent monitoring terminal of band arc protection - Google Patents
A kind of preassembled transformer station intelligent monitoring terminal of band arc protection Download PDFInfo
- Publication number
- CN205753649U CN205753649U CN201620455617.7U CN201620455617U CN205753649U CN 205753649 U CN205753649 U CN 205753649U CN 201620455617 U CN201620455617 U CN 201620455617U CN 205753649 U CN205753649 U CN 205753649U
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- China
- Prior art keywords
- transformer station
- unit
- plug
- preassembled transformer
- arc
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y04S20/14—Protecting elements, switches, relays or circuit breakers
Abstract
This utility model provides the preassembled transformer station intelligent monitoring terminal of a kind of band arc protection; it is characterized in that: it includes cabinet; internal bus and the CPU card being connected with described internal bus, power insert, AC sampling plug-in unit, arc light collection plug-in unit and IO plug-in unit it is provided with in described cabinet; described AC sampling plug-in unit is for connecting the voltage transformer in preassembled transformer station and current transformer, to complete the voltage in preassembled transformer station and the collection of current signal；Described arc light gathers plug-in unit for connecting the arc photosensor in preassembled transformer station, to complete the collection of the arc optical signal in preassembled transformer station.When there is arc fault in this utility model; can quickly excise bus-bar fault; achieve the quick-action of protection; in addition this utility model is integrated with temperature and humidity monitor, idle control, telemechanical communication function; simplify second loop return wiring; saving installing space, beneficially equipment is intensive, decreases cost of investment.
Description
Technical field
This utility model belongs to distribution network automated technical field, is specifically related to the prepackage of a kind of band arc protection
Formula intelligent substation monitor terminal.
Background technology
When middle voltage bus bar is short-circuited fault, equipment and personnel are caused great damage by the arclight of generation,
Very likely cause chain accident.Arc protection is specific to middle voltage bus bar fault, when bus event occurs
During barrier, it is possible to fast shut-off power supply, it is ensured that personnel, equipment safety.
Preassembled transformer station (becomes also known as box-type substation, case), is that one has merged primary equipment and secondary sets
Standby complete power distribution equipment, mainly includes that transformator, high-tension switch gear and control equipment, low tension switch set
Standby and control equipment, back panel wiring (cable, busbar etc.), measure, compensate, the auxiliary equipment such as spark gap.
Preassembled transformer station uses case structure, is mostly installed at open air, is widely used in 35KV and level below
City and countryside power grid modification in.
According to the projects of relay protection specification that China is existing, the bus of 35kV and following electric pressure is not provided with specially
Bus protection, but crossed stream to excise busbar short-circuit fault by the standby of upper level element (transformator),
Due to transformer backup need with feeder switch carry out time coordination, the trip protection time typically adjust into
1.0～1.4s.This move speed is unsatisfactory for quickly excising the requirement of middle voltage bus bar fault obviously, result in
Fault clearing time extends, and increases the degree of injury of equipment, brings hidden danger to the safe operation of equipment.
Utility model content
In order to solve the problems referred to above, this utility model provides the preassembled transformer station intelligence of a kind of band arc protection
Can monitor terminal, it includes cabinet, is provided with internal bus and is connected with described internal bus in described cabinet
CPU card, power insert, AC sampling plug-in unit, arc light gather plug-in unit and IO plug-in unit, described AC sampling
Plug-in unit is for connecting the voltage transformer in preassembled transformer station and current transformer, to complete prepackage type power transformation
Voltage in standing and the collection of current signal；Described arc light gathers plug-in unit for connecting in preassembled transformer station
Arc photosensor, to complete the collection of the arc optical signal in preassembled transformer station.
Further, the preassembled transformer station intelligent monitoring terminal of the band arc protection that this utility model provides is also
Including the humiture collection plug-in unit being connected with described internal bus, described humiture collection plug-in unit is used for connecting pre-
Temperature Humidity Sensor in Zhuan Shi transformer station, to complete the collection of the humiture information in preassembled transformer station.
Further, the preassembled transformer station intelligent monitoring terminal of the band arc protection that this utility model provides is also
Including the display floater being connected with described internal bus.
Further, the preassembled transformer station intelligent monitoring terminal of the band arc protection that this utility model provides is also
Including the communication plug-in unit being connected with described internal bus.
Further, described communication plug-in unit includes a radio receiving transmitting module and 4 RS485 serial ports and 2
RS232 serial ports.
This utility model has following outstanding advantages: this utility model is when occurring arc fault, it is possible to quickly
Excision bus-bar fault, it is achieved that the quick-action of protection, this utility model is integrated with temperature and humidity monitor, nothing in addition
Power control system, telemechanical communication function, simplify second loop return wiring, save installing space, beneficially equipment
Intensive, decrease cost of investment.
Accompanying drawing explanation
Fig. 1 is the structural principle block diagram of preassembled transformer station intelligent monitoring terminal of the present utility model；
Fig. 2 is joining of preassembled transformer station intelligent monitoring terminal of the present utility model and a preassembled transformer station
Closing installation is schematic diagram；
Fig. 1 and Fig. 2 includes that preassembled transformer station intelligent monitoring terminal 100, internal bus 101, CPU insert
Part 102, power insert 103, display floater 104, communication plug-in unit 105, AC sampling plug-in unit 106, arc light
Gather plug-in unit 107, humiture collection plug-in unit 108, IO plug-in unit 109, preassembled transformer station 200, altitude chamber
201, low-pressure chamber 202, transformer room 203, high-voltage ring main unit 204, arc photosensor 205, humiture pass
Sensor 206 and thermo hydrograph regulator 207.
Detailed description of the invention
As it is shown in figure 1, in a specific embodiment, preassembled transformer station intelligent monitoring of the present utility model
Terminal 100 includes cabinet (not shown), be provided with in described cabinet internal bus 101 and with described internal bus
101 CPU cards 102 connected, power insert 103, display floater 104, communication plug-in unit 105, exchange
Sampling plug-in 106, arc light gather plug-in unit 107, humiture collection plug-in unit 108 and IO plug-in unit 109.
As in figure 2 it is shown, it illustrates in a concrete application, preassembled transformer station intelligence of the present utility model
Energy monitor terminal 100 coordinates installation diagram with a preassembled transformer station 200；Described preassembled transformer station 200
Including altitude chamber 201, transformer room 203 and low-pressure chamber 202, described altitude chamber 201, described transformer room
203 and described low-pressure chamber 202 in be equipped with Temperature Humidity Sensor 206 and thermo hydrograph regulator 207, described height
Arc photosensor 205 it is equipped with, in described preassembled transformer station 200 in pressure chamber 201 and described low-pressure chamber 202
It is additionally provided with PT (voltage transformer) and CT (current transformer), the high pressure of described preassembled transformer station 200
It is provided with Capacitor banks in ring main unit 204 and controls switch.
Preassembled transformer station intelligent monitoring terminal 100 of the present utility model is arranged on described preassembled transformer station 200
Altitude chamber 201 in, described power insert 103 is connected with external power source, described AC sampling plug-in unit 106
By cable and the PT (voltage transformer) in described preassembled transformer station 200 and CT (current transformer)
Connect, to gather the voltage in described preassembled transformer station 100 and current signal.Described arc light gathers plug-in unit
107 connect described arc photosensor 205 by cable, are used for gathering described altitude chamber 201 and described low-pressure chamber
Arc optical signal in 202.Described humiture collection plug-in unit 108 connects described Temperature Humidity Sensor by cable
206, to obtain the humiture information in described altitude chamber 201, transformer room 203 and low-pressure chamber 202.Institute
State IO plug-in unit 109 and connect described thermo hydrograph regulator 207 by cable, with regulate described altitude chamber 201,
Humiture in transformer room 203 and low-pressure chamber 202.Described IO plug-in unit 109 connects described also by cable
The control switch of the capacitance group in high-voltage ring main unit 204.
Described display floater 104 has been used for man-machine information interaction, described communication plug-in unit 105 can realize with
The communication of external device (ED).In certain embodiments, described communication plug-in unit 105 includes a wireless receiving and dispatching
Module, 4 RS485 serial ports and 2 RS232 serial ports, described radio receiving transmitting module uses gsm communication skill
Art, support IEC60870-5-101 stipulations, IEC60870-5-103 stipulations, IEC60870-5-104 stipulations,
MODBUS stipulations etc., can realize and all kinds of monitoring systems, the communication of scheduling station；Described RS485 serial ports
And RS232 serial ports can realize mutual with the information of external smart equipment.
Preassembled transformer station intelligent monitoring terminal of the present utility model can complete arc protection, temperature and humidity regulation
And idle control, its operation principle is as follows:
Arc protection: when short circuit occurs in the bus in the altitude chamber 201 or low-pressure chamber 202 of preassembled transformer station
When fault produces arc light, arc photosensor 205 receives arc light and produces the analogue signal of 4～20mA, high pressure
CT (current transformer) in ring main unit 204 also can produce a fault current, above-mentioned analogue signal simultaneously
Gathered plug-in unit 107 by arc light respectively with fault current and AC sampling 106 plug-in unit gathers, and final through institute
State internal bus 101 transmission to described CPU card 102.When analogue signal and fault current are the most pre-
If during threshold value, CPU judges to occur arc fault, and drives and described IO plug-in unit through internal bus 101
The control switch motion of the 109 corresponding relays connected, thus tripping service entrance switch, cut-out external power source.
Above-mentioned whole arc protection can in 40ms action message, substantially reduce movement time, it is to avoid
Arc light is to personnel, the harm of station equipment.
Temperature and Humidity Control: humiture collection plug-in unit 108 obtains prepackage type power transformation by Temperature Humidity Sensor 206
Humiture information in standing, and transmit information to CPU card 102 by internal bus 101.Work as prepackage
When humiture in formula transformer station is unsatisfactory for predetermined condition, CPU drives and IO plug-in unit through internal bus 101
The 109 control switch motions of corresponding relays connected, work starting thermo hydrograph regulator 207, complete pre-
Temperature and humidity regulation in Zhuan Shi transformer station.
Above-mentioned humiture body regulation process uses closed loop control, it is ensured that being precisely controlled of humiture, prevents prepackage
Formula transformer station is affected formation condensation by humiture and is caused flashover fault.
Idle control: the CT (current transformer) on inlet wire, the PT (voltage transformer) on bus access
AC sampling plug-in unit 106, and transmit to CPU card 102 through internal bus 101.When three-phase current is normal,
Bus is without broken string, and busbar voltage is less than idle input voltage threshold, and it is not enough that CPU is judged to System Reactive Power；When
Three-phase current is normal, bus without broken string, and busbar voltage is higher than the idle voltage threshold that exits, CPU be judged to be
Unite idle abundant.When idle deficiency, CPU drives the phase being connected with IO plug-in unit 109 through internal bus 101
Answer the control switch motion of relay, to put into external capacitor group；When System Reactive Power is abundant, CPU warp
Internal bus 101 drives the control switch motion of the corresponding relay connected to IO plug-in unit 109, outside excising
Portion's Capacitor banks.
To sum up, this utility model has taken into full account bus-bar fault length movement time that preassembled transformer station faces, has been subject to
The problems such as ambient temperature and humidity impact is big, networking difficulty, merged arc protection, temperature and humidity monitor, without power control
The functions such as system, telemechanical communication, safe and stable, economical operation for preassembled transformer station have certain
Engineering practicability.
Below be only preferred embodiment of the present utility model, not this utility model is made any in form
Restriction, any simple modification above example made according to technical spirit of the present utility model, equivalent
Change and modification, all still fall within the range of technical solutions of the utility model.
Claims (5)
1. the preassembled transformer station intelligent monitoring terminal of a band arc protection, it is characterised in that: it includes machine
Case, be provided with in described cabinet internal bus and the CPU card being connected with described internal bus, power insert,
AC sampling plug-in unit, arc light gather plug-in unit and IO plug-in unit,
Described AC sampling plug-in unit is used for connecting the voltage transformer in preassembled transformer station and current transformer,
To complete the voltage in preassembled transformer station and the collection of current signal；
Described arc light gathers plug-in unit for connecting the arc photosensor in preassembled transformer station, to complete prepackage type
The collection of the arc optical signal in transformer station.
2. preassembled transformer station intelligent monitoring terminal as claimed in claim 1, it is characterised in that: it also wraps
Including the humiture collection plug-in unit being connected with described internal bus, described humiture collection plug-in unit is used for connecting prepackage
Temperature Humidity Sensor in formula transformer station, to complete the collection of the humiture information in preassembled transformer station.
3. preassembled transformer station intelligent monitoring terminal as claimed in claim 1, it is characterised in that: it also wraps
Include the display floater being connected with described internal bus.
4. preassembled transformer station intelligent monitoring terminal as claimed in claim 1, it is characterised in that it also wraps
Include the communication plug-in unit being connected with described internal bus.
5. preassembled transformer station intelligent monitoring terminal as claimed in claim 4, it is characterised in that: described logical
Letter rack part includes a radio receiving transmitting module and 4 RS485 serial ports and 2 RS232 serial ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620455617.7U CN205753649U (en) | 2016-05-18 | 2016-05-18 | A kind of preassembled transformer station intelligent monitoring terminal of band arc protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620455617.7U CN205753649U (en) | 2016-05-18 | 2016-05-18 | A kind of preassembled transformer station intelligent monitoring terminal of band arc protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205753649U true CN205753649U (en) | 2016-11-30 |
Family
ID=57364971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620455617.7U Active CN205753649U (en) | 2016-05-18 | 2016-05-18 | A kind of preassembled transformer station intelligent monitoring terminal of band arc protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205753649U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155633A (en) * | 2017-12-29 | 2018-06-12 | 安徽罗伯特科技股份有限公司 | Arc light protection system |
| CN108645513A (en) * | 2018-07-17 | 2018-10-12 | 南京五石金传感技术有限公司 | A kind of arc photosensor testing light source generating means and its test method |
| CN113381380A (en) * | 2021-06-17 | 2021-09-10 | 广东韶钢松山股份有限公司 | Electrical equipment protection method and device and electrical equipment |
-
2016
- 2016-05-18 CN CN201620455617.7U patent/CN205753649U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155633A (en) * | 2017-12-29 | 2018-06-12 | 安徽罗伯特科技股份有限公司 | Arc light protection system |
| CN108645513A (en) * | 2018-07-17 | 2018-10-12 | 南京五石金传感技术有限公司 | A kind of arc photosensor testing light source generating means and its test method |
| CN113381380A (en) * | 2021-06-17 | 2021-09-10 | 广东韶钢松山股份有限公司 | Electrical equipment protection method and device and electrical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |