CN201549808U - 66kV fully-enclosed, all-insulated and fully-preassembled combined substation - Google Patents
66kV fully-enclosed, all-insulated and fully-preassembled combined substation Download PDFInfo
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- CN201549808U CN201549808U CN2009202483010U CN200920248301U CN201549808U CN 201549808 U CN201549808 U CN 201549808U CN 2009202483010 U CN2009202483010 U CN 2009202483010U CN 200920248301 U CN200920248301 U CN 200920248301U CN 201549808 U CN201549808 U CN 201549808U
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Abstract
The utility model relates to the technical field of electric power grid transformation, in particular to a 66kV preassembled substation suitable for use in urban and rural areas. The utility model comprises a high voltage inlet wire unit box, a main transformer unit box, a medium voltage outlet wire unit box, an integrated protection, signal and control unit box, a medium voltage auxiliary electric power device unit box and a combined substation guardrail, and the unit boxes are connected through a high voltage cable. The utility model is characterized by systemic planning, unified standard, factory prefabrication and high degree of industrialization. The construction process has the advantages of energy saving, material saving, land saving, time saving and money saving. The electric device is fully enclosed and all insulated without exposed part and overhead wire. The complete fire alarm, the security guard, the video monitoring device and the like can greatly improve the safe operation reliability of the substation.
Description
One, technical field: the utility model relates to power network power transformation technical field, especially refers to a kind of 66KV preassembled transformer station that is adapted to city and rural area.
Two, background technology: prefabricated transformer station is existing national standard and TEC standard terminology.In GB/T17467-1998 " high pressure/preassembled transformer station " national standard and IEC1330:1995 " High-voltage/low-voltage prefabricated substations " IEC, the main element of preassembled transformer station is transformer, high voltage switchgear and control appliance, low voltage switchgear and control appliance, corresponding internal connection line (cable, bus and other) and auxiliary equipment, and these elements should be closed with a public shell or an assembly housing.
Preassembled transformer station is different from the civil engineering transformer station that routinizes, be in factory with element such as above-mentioned transformer high and low voltage switch, control appliance, auxiliary equipment and shell by certain design line, assembling and the complete set of equipments by test.After integral body or sub-unit are transported to the use scene, be connected with outside turnover cable, can come into operation immediately through the scene installation.
In China, prefabricated transformer station is mainly used in the 1-52KV high-voltage fence at present, is used for high voltage electric energy is converted to the low-voltage electric energy of 0.4KV.And aspect the transformer substation construction of 66KV electric pressure, the on-the-spot Installation and Debugging of power equipment of habitual always for a long time employing civil construction and dispersion are the traditional mode of one, and high pressure wire inlet unit and main transformer unit do not adopt totally-enclosed form, and often there are problems such as construction investment is big, the site operation cycle is long, the work on the spot amount is big, electrification in high voltage is partly exposed, overhead wire is various, system management mixes in the method for this construction transformer station.
35～110kV grade vehicular transformer station had just become standard product in the IEEE/PES exhibition that the U.S. holds in 2006, and also there is the modular transformer substation of 60kV grade in Japan.State Grid Corporation of China has released " State Grid Corporation of China's project of transmitting and converting electricity modular design " in December, 2005, wherein 110kV and following transformer station are divided into outdoor substation, indoor transformer station and semi-underground transformer station by arrangement, it is intended that standardization and the modularization that promotes transformer substation construction; In February, 2007, State Grid Corporation of China proposed construction " amphitypy one is changed " transformer station again, emphasize power construction should towards economize on resources, environmental friendliness, industrialized direction effort, this has just shown that along with the development of technology and construction material and progress the above preassembled transformer station of 52KV also will be popularized gradually.
Three, summary of the invention:
1, goal of the invention: the purpose of this utility model is to provide a kind of modular transformer substation of 66kV grade, and its purpose is to solve existing 66kV grade transformer station and has problems such as construction period is long, the work on the spot amount is big, electrification in high voltage is partly exposed, overhead wire is various, system management mixes.
2, technical scheme: the utility model is implemented by the following technical programs:
The totally-enclosed all insulation of a kind of 66kV is pre-installed prefabricated substation entirely, comprise high pressure wire inlet unit casing, the main transformer unit box, the middle line unit box that extrudes, integrated protection, signal and control unit casing, the middle auxiliary power unit casing of pressing, the prefabricated substation guardrail, it is characterized in that: high pressure wire inlet unit casing, the main transformer unit box, the middle line unit box that extrudes, integrated protection, signal and control unit casing, the middle auxiliary power unit casing of pressing is full-closed structure, only be provided with line outlet, and above-mentioned 5 unit boxs all are installed in prefabricated substation guardrail inside in the lower end; Adopt high-tension cable to be connected between high pressure wire inlet unit casing and the main transformer unit box, be connected by high-tension cable between main transformer unit box and the middle extrusion line unit box; The middle line unit box that extrudes connects integrated protection, signal and control unit casing, middle pressure auxiliary power unit casing respectively by high-tension cable; The connected mode of high-tension cable adopts the plug formula cable joint mode of connection to connect.
All unit boxs are prepackage type, promptly lift fixed in place in factory's assembling and after debugging.
Stube cable line between all unit boxs all is embedded in underground.
All unit boxs all adopt the light body structure of steel structure framework.
3, advantage and effect: the characteristics that the totally-enclosed all insulation of this 66kV is pre-installed prefabricated substation entirely are: system's planning, unified standard, prefabrication, industrialization degree height.Architectural process is energy-conservation, material-saving, economize on water, save land, save time, the saving fund.The totally-enclosed all insulation of electric equipment does not have exposed part, no overhead wire.Complete fire alarm, security guard, video monitoring facility etc. have all improved the substation safety reliability of operation greatly.
Four, description of drawings:
Fig. 1 is the complete precast combined transformer station of the totally-enclosed all insulation of a 66kV schematic diagram.
Fig. 2 is the complete precast combined monitoring system of electric substation schematic diagram of the totally-enclosed all insulation of 66kV.
Five, embodiment:
Below in conjunction with accompanying drawing technical scheme described in the utility model is specifically described:
Fig. 1 is the complete precast combined transformer station of the totally-enclosed all insulation of a 66kV schematic diagram; wherein 1 is high pressure wire inlet unit casing; 2 is the main transformer unit box; 3 is middle extrusion line unit box; 4 is integrated protection, signal and control unit casing; 5 is middle pressure auxiliary power unit casing, and 6 is the prefabricated substation guardrail.
Mainly be equiped with the high pressure unit switch of 72.5KV in the high pressure wire inlet unit casing 1, this high pressure unit switch is a gas-insulated metal-enclosed formula switching device (GIS), or plug-in type switching device (PASS), no matter select which kind of device for use, all adopt the plug formula cable joint mode of connection, the integrated degree height of this combined electric appliance equipment, it is airtight safe and reliable to insulate.
Select three-phase double winding on-load tap-changing transformer in the main transformer unit box 2 for use, or select corresponding transformer according to customer requirements.
The middle line unit box 3 that extrudes is 10KV high voltage power distribution chamber, lays several 10KV high-tension switch cabinets and capacitor switch cabinet in this casing.Owing to adopted the unit box structure will try hard to make above-mentioned cabinet miniaturization, adopt ZPJ type small size switch cubicle in the enforcement without exception, its external dimensions is: wide * dark * height=500mm * 1100mm * 1800mm, and single cabinet weight is no more than 200Kg.
Integrated protection, signal and control unit casing 4 are Microcomputer Protection, electric quantity signal and control room.Capital equipment has Microcomputer Protection screen, telecontrol communication screen, electric quantity metering screen, computer background, scheduling optical transceiver screen, power of alterating and direct current screen, direct current 220V storage battery screen in this casing; above-mentioned screen body equipment all is the conventional basic composition equipment of transformer station, good air conditioner facility will be arranged to guarantee the electric equipment safe and stable operation when the assurance insulation is airtight in the casing.
The middle pressure in the auxiliary power unit casing 5 mainly laid Reactive-current General Compensation device, controlled arc suppression coil equipment etc., pressing auxiliary power equipment in these is that requirement according to power grid operation increases and exempts from, part as transformer substation construction, the middle auxiliary power equipment of pressing also is to guarantee the sealing insulation, and pre-installs in factory.
Finish the making of above-mentioned five unit boxs in factory after, begin the power equipment in each unit box is comprehensively checked and energizing test.Will be according to the correlation technique condition of high pressure unit switch and require to do the check etc. of a deciliter action test, electric insulation test, withstand voltage test and auxiliary device such as the high pressure unit switch in the high pressure wire inlet unit casing 1, be able to after the conformance with standard by.Transformers in the main transformer unit box 2 will carry out the dielectric voltage withstand test according to the correlation technique condition and the standard-required of power transformer, the also electric parameters that will be correlated with and non-electric quantity check etc., be able to after the conformance with standard by.Be electric equipment in middle extrusion line unit box 3, carry out the test of internal unit inspection and dielectric voltage withstand, split to close and carry out electric deciliter operating operation test each switch cubicle based on the 10KV switch cubicle, be able to after the conformance with standard by.The personal power transformer of transformer station will carry out electric checking and test according to the technical conditions and the standard of middle pressure transformer, be able to after the conformance with standard by.Every tests such as voltage transformer will insulate according to the respective standard and the requirement of voltage transformer, withstand voltage, no-load voltage ratio, the mode of connection, be able to after the conformance with standard by.All be the secondary electric equipment in integrated protection, signal and the control unit casing 4, its process of the test relative complex is a little, at first is the check AC power supply panel here, guarantee that the station can reliably power with AC power.Next is that DC power supply panel is checked and debugged, and comprises dielectric voltage withstand, insulating monitoring, output voltage stability, switching manipulation etc., also comprises floating charge between DC power supply and the storage battery and working condition of feed etc., be able to after adhering to specification by.Microcomputer protecting device will be done the definite value test and the transmission test of different protections.Measuring screen will be done the accuracy test of kilowatt-hour meter.Optical transceiver will be done the check of this machine operation conditions.In press the Reactive-current General Compensation device in the auxiliary power unit casing 5 or control arc suppression coil equipment automatically and generally establish one's own system, the static debugging of the system that in factory, also will finish, after the regulation and control system of confirming selected auxiliary power equipment meets design requirement, be able to by.
Above-mentioned 5 unit boxs are finished to transport to after the checkout facility in factory and are desired to build the transformer station scene, put position according to prior design, adopt underground high voltage cable to interconnect according to the primary system between each unit box of transformer station's design principle, electrical secondary system adopts the multicore cable of underground tape insulation sheath to connect.Final through finishing the construction of a transformer station after the on-the-spot whole debugging fast.
All unit boxs described in the utility model all adopt the light body structure of steel structure skeleton composite material, exterior wall is the metal finishing warming plate, it is fire-proof and damp-proof heat-insulating integral formed material, the casing interior wall is that plasterboard adds fireproof paint, the interlayer of interior wall and exterior wall is equipped with insulation, insulation, fireproof rock wool, the unit box top is the herringbone steel frame construction, and top cover adopts color steel rock wool-steel plywood, and ceiling is the fire-resistant gypsum panel lifting in the unit box.The whole unit casing has remarkable air-tightness and thermal insulation, wind resistance, antidetonation, durable in use, has the performance of dustproof anticorrosive damp-proof and fireproof simultaneously.
As shown in Figure 2, the totally-enclosed all insulation of 66KV is pre-installed prefabricated substation entirely and has also been considered problems such as the fire prevention of unattended operation transformer station, antitheft, security monitoring, warning emphatically.Be provided with monitoring camera 7, far infrared deterctor 8, left front system 9, fire alarm theft alarm aviso device 10, wherein prefabricated substation fence 6 is connected with monitoring camera 7, far infrared deterctor 8; Monitoring camera 7, far infrared deterctor 8 are connected with gate control system 9, and gate control system 9 is connecting fire alarm theft alarm aviso device 10, and fire alarm theft alarm aviso device 10 sends dynamic image and communication data to Surveillance center 11 by the EI circuit.
Claims (4)
1. the totally-enclosed all insulation of 66kV is pre-installed prefabricated substation entirely, comprise high pressure wire inlet unit casing (1), main transformer unit box (2), the middle line unit box (3) that extrudes, integrated protection, signal and control unit casing (4), the middle auxiliary power unit casing (5) of pressing, prefabricated substation guardrail (6), it is characterized in that: high pressure wire inlet unit casing (1), main transformer unit box (2), the middle line unit box (3) that extrudes, integrated protection, signal and control unit casing (4), the middle auxiliary power unit casing (5) of pressing is full-closed structure, only be provided with line outlet, and above-mentioned 5 unit boxs all are installed in prefabricated substation guardrail (6) inside in the lower end; Adopt high-tension cable to be connected between high pressure wire inlet unit casing (1) and the main transformer unit box (2), be connected by high-tension cable between main transformer unit box (2) and the middle extrusion line unit box (3); The middle line unit box (3) that extrudes connects integrated protection, signal and control unit casing (4), middle pressure auxiliary power unit casing (5) respectively by high-tension cable; The connected mode of high-tension cable adopts the plug formula cable joint mode of connection to connect.
2. pre-install prefabricated substation entirely according to the totally-enclosed all insulation of the described a kind of 66kV of claim 1, it is characterized in that: all unit boxs are prepackage type, promptly lift fixed in place in factory's assembling and after debugging.
3. pre-install prefabricated substation entirely according to the totally-enclosed all insulation of the described a kind of 66kV of claim 1, it is characterized in that: the stube cable line between all unit boxs all is embedded in underground.
4. pre-install prefabricated substation entirely according to the totally-enclosed all insulation of the described a kind of 66kV of claim 1, it is characterized in that: all unit boxs all adopt the light body structure of steel structure framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202483010U CN201549808U (en) | 2009-11-20 | 2009-11-20 | 66kV fully-enclosed, all-insulated and fully-preassembled combined substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202483010U CN201549808U (en) | 2009-11-20 | 2009-11-20 | 66kV fully-enclosed, all-insulated and fully-preassembled combined substation |
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| Publication Number | Publication Date |
|---|---|
| CN201549808U true CN201549808U (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202483010U Expired - Fee Related CN201549808U (en) | 2009-11-20 | 2009-11-20 | 66kV fully-enclosed, all-insulated and fully-preassembled combined substation |
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| CN (1) | CN201549808U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839851A (en) * | 2011-07-28 | 2012-12-26 | 南通天华和睿科技创业有限公司 | Glass fiber reinforced plastic high-pressure protection device |
| CN104734033A (en) * | 2015-02-17 | 2015-06-24 | 江苏诚纳电气有限公司 | Constant-temperature fireproof power distribution cabinet |
-
2009
- 2009-11-20 CN CN2009202483010U patent/CN201549808U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839851A (en) * | 2011-07-28 | 2012-12-26 | 南通天华和睿科技创业有限公司 | Glass fiber reinforced plastic high-pressure protection device |
| CN104734033A (en) * | 2015-02-17 | 2015-06-24 | 江苏诚纳电气有限公司 | Constant-temperature fireproof power distribution cabinet |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20131120 |