CN102664357A - Three-grade seismic fortification method for electrical equipment - Google Patents
Three-grade seismic fortification method for electrical equipment Download PDFInfo
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- CN102664357A CN102664357A CN2012101389272A CN201210138927A CN102664357A CN 102664357 A CN102664357 A CN 102664357A CN 2012101389272 A CN2012101389272 A CN 2012101389272A CN 201210138927 A CN201210138927 A CN 201210138927A CN 102664357 A CN102664357 A CN 102664357A
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Abstract
The invention provides a three-grade seismic fortification method for electrical equipment. The method comprises the following steps of: dividing a seismic fortification level and defining acceleration peak values of different seismic inputs; determining a seismic fortification target; and checking the seismic capacity of the electrical equipment. On the basis of the self seismic capacity of the electrical equipment, a unified seismic fortification level is preset, so the fortification levels of an equipment manufacturer, engineering design and an owner are accordant, and the three-grade seismic fortification method for the electrical equipment has the characteristics of clear concept, convenience for operation and the like; moreover, according to the current economic and social development level of China, on the basis of a check criteria in the seismic fortification level provided by the invention, seismic requirements of the electrical equipment of China can be remarkably improved, great practical significance is provided for guarantee of the seismic reliability of the electrical equipment under various types of seismic action; and the method is applicable to seismic design and check of various kinds of electrical equipment in a voltage grade of 35 kV or over, and can be reference for the seismic design and check of other types of equipment.
Description
Technical field
The invention belongs to equipment antidetonation field, three grades that the are specifically related to a kind of electric equipment method of providing fortification against earthquakes.
Background technology
The existing standard of China is set according to the on-site fortification intensity of engineering about the antidetonation appraisal standards of electric equipment and the target main reference seismic design provision in building code of setting up defences.The value of electric equipment antidetonation examination acceleration peak value sees attached list 1.
Subordinate list 1
When test specimen is not examined together with supporting structure in the lump; Should multiply by dynamic magnification factor; When for example the bushing shell for transformer in IX degree zone not being examined with the antidetonation of transformer body; The acceleration peak value of artificial seismic wave synthetically or real shake record is 0.80g, and the acceleration peak value of resonant sine beat wave is 0.60g.
The electric equipment that existing standard the is confirmed target of providing fortification against earthquakes is: (1) is not damaged when being subjected to be equivalent to fortification intensity and following earthquake effect, still can continue to use; (2) when being subjected to be higher than rarely occurred earthquake that fortification intensity estimates when influencing, unlikely badly damaged, after repairing, can recover to use.
Subject matters such as provide fortification against earthquakes level and target of the present electric equipment of China exists antidetonation examination target unintelligible, and examination requires operability relatively poor, and the examination level is low.Mainly be to be provided with reference to the fortification intensity of seismic design provision in building code and rarely occurred earthquake notion, and the concrete antidetonation examination requirement when not having rarely occurred earthquake.
At first; The aseismic design of electric equipment and examination are according to the fortification intensity design or according to rare chance earthquake intensity design; Often become bone of contention; Equipment producer and designing unit are only with the foundation of the requirement of setting up defences (when being equivalent to fortification intensity and following earthquake effect, be not damaged, still can use) as examination electric equipment anti-seismic performance in practical operation.And rarely occurred earthquake is set up defences and is required concerning the very high electric equipment of functional requirement, and " unlikely badly damaged, as after repairing, can to recover to use " is difficult with grasp.
Secondly, because electric equipment approved product often, and the actual user varies, the on-site place of engineering fortification intensity is also variant.And picture building structure is different, and building structure is individual configurations, and the place is fixed, and it is feasible that the notion of employing fortification intensity is carried out the individual event design.As only require to carry out the antidetonation examination of electric equipment according to building field according to setting up defences of place fortification intensity; Tend to cause device fabrication producer can't adapt to, thereby possibly cause the anti-seismic performance of equipment not reach the requirement of setting up defences the requirements for fortification against earthquake of different regions.
Have, the electric equipment earthquake response spectrum that adopts of providing fortification against earthquakes is to indiscriminately imitate seismic design provision in building code fully again, and there is different response spectrums in different places, and this earthquake input applicability that also causes being used for the examination of electric equipment antidetonation is relatively poor.And in the electric equipment aseismic design of reality; Engineering design unit disconnects with the antidetonation examination of device fabrication unit relevant electric equipment often; Engineering design unit often makes demands to the shock resistance of electric equipment, and can equipment satisfy the responsibility that shockproof requirements is a producer; And producer not quite understands the on-site requirement of setting up defences of engineering, place characteristic, causes the antidetonation of electric equipment to examine less than crucial point.
Because the current regulation to electric equipment antidetonation examination of China is not concrete, does not have examination detailed rules and regulations detailed, with strong points and method, make the antidetonation examination of relevant electric equipment have many mistaken ideas, applicability, operability are relatively poor; In addition, existing electric equipment shock resistance examination level also is lower than external level.Along with the sustainable and healthy development of China's economic level, the raising day by day that electricity needs and reliability require is necessary suitably to improve the antidetonation examination level of electric equipment, guarantees the antidetonation reliability of all kinds of electric equipments under the geological process.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art; The present invention provides a kind of three grades of electric equipment method of providing fortification against earthquakes; Only, preestablish the unified standard of providing fortification against earthquakes, make equipment producer, engineering design and owner's the level of setting up defences unanimity from the shock resistance of electric equipment self; Has clear concept, characteristics such as easy to operate; In addition; According to present China socio-economic development level, the examination criterion under the corresponding level of providing fortification against earthquakes that proposes of the present invention can significantly improve the shockproof requirements of China's electric equipment; To guaranteeing the antidetonation reliability of the electric equipment under all kinds of geological processes, have important practical significance; Be applicable to the aseismic design and the examination of all kinds of electric equipments of 35kV and above electric pressure, the aseismic design of the equipment of other type, the examination also can be with reference to employing.
In order to realize the foregoing invention purpose, the present invention takes following technical scheme:
A kind of three grades of electric equipment method of providing fortification against earthquakes said method comprising the steps of:
Step 1: divide and provide fortification against earthquakes level and define the acceleration peak value that different earthquake is imported;
Step 2: confirm the target of providing fortification against earthquakes;
Step 3: the shock resistance of examination electric equipment.
In the said step 1, according to the level of current domestic electric equipment shock resistance and socio-economic development, three grade electric equipments of the division level of providing fortification against earthquakes.
The said electric equipment level of providing fortification against earthquakes is divided into common, medium and high three ranks of level of providing fortification against earthquakes.
In the said step 1, said acceleration peak value comprises the acceleration peak value of real shake record and artificially seismic wave and the acceleration peak value that ripple is clapped in resonance.
Under the said common level situation of providing fortification against earthquakes, the acceleration peak value of real shake record and artificially seismic wave is 0.20g, and the acceleration peak value that ripple is clapped in resonance is 0.15g.
Under the situation of the said medium level of providing fortification against earthquakes, the acceleration peak value of real shake record and artificially seismic wave is 0.40g, and the acceleration peak value that ripple is clapped in resonance is 0.30g.
Under the situation of the said high level of providing fortification against earthquakes, the acceleration peak value of real shake record and artificially seismic wave is 0.60g, and the acceleration peak value that ripple is clapped in resonance is 0.40g.
In the said step 2, under the common level of providing fortification against earthquakes, the target of providing fortification against earthquakes of electric equipment is that all structures and the function of electric equipment is excellent, and device structure is in elastic stage basically, and the porcelain knob stress of root is no more than 20Mpa.
In the said step 2, under the medium level of providing fortification against earthquakes, the electric equipment target of providing fortification against earthquakes is that the agent structure of electric equipment is excellent, and its function is unaffected basically, can continue to use through simple-to-maintain, and the porcelain knob stress of root is no more than 30Mpa.
In the said step 2; Under the high level of providing fortification against earthquakes; The electric equipment target of providing fortification against earthquakes is that collapsing or fractureing does not appear in electric equipment, and its basic function still can be kept, and the porcelain knob stress of root is no more than 40Mp; Do not influence the normal operation of adjacent other equipment after the shake, but need take recovery measure or change the electric equipment parts.
Said electric equipment is a high voltage substation, and said high voltage substation comprises primary substation and step-down substation; Said primary substation and step-down substation include primary equipment and second protection equipment, and said primary equipment comprises circuit breaker, transformer and sleeve pipe, isolating switch, instrument transformer, lightning arrester and post insulator.
Compared with prior art, beneficial effect of the present invention is:
1. the present invention is only from the shock resistance of electric equipment self; No longer confirm the antidetonation examination requirement of equipment according to the fortification intensity in engineering zone of living in; And preestablish the unified standard of providing fortification against earthquakes; Make equipment producer, engineering design and owner's the level of setting up defences unanimity to have clear concept, characteristics such as easy to operate;
2. according to present China socio-economic development level; Examination criterion under the corresponding level of providing fortification against earthquakes that proposes of the present invention; Can significantly improve the shockproof requirements of China's electric equipment,, have important practical significance guaranteeing the antidetonation reliability of the electric equipment under all kinds of geological processes;
3. the electric equipment three grades level of providing fortification against earthquakes has taken into full account and the integrating with of the requirements for fortification against earthquake of China existing standard; And according to current socio-economic development level and the society higher requirement has suitably improved the level of setting up defences to electric equipment; Common setting up defences corresponds essentially to the VIII degree and sets up defences; Medium setting up defences corresponds essentially to the IX degree and sets up defences, and high setting up defences corresponds essentially to the level of setting up defences of IX degree rarely occurred earthquake;
4. the set up defences target of level of corresponding three grades is based on the basic function of electric equipment and is provided with, and guarantees that the functional safety of electric equipment equipment under the level of providing fortification against earthquakes of different brackets is reliable, the normal operation of the continuous equipment of dimension;
5. be applicable to the aseismic design and the examination of all kinds of electric equipments of 35kV and above electric pressure, the aseismic design of the equipment of other type, the examination also can be with reference to employing.
Description of drawings
Fig. 1 is SF6 circuit breaker three grades that are applied to 220kV in the embodiment of the invention vibration machine structural representations of providing fortification against earthquakes;
Fig. 2 is applied to 500kV lightning arrester shock resistance test examination structural representation in the embodiment of the invention;
Wherein: 1. grading ring, 2. top electrode, 3. sealing ring, 4. pressure ring, 5. core component, 6. magnetic shell, 7. upper flange, 8. lower flange, 9. cover plate.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
A kind of three grades of electric equipment method of providing fortification against earthquakes said method comprising the steps of:
Step 1: divide and provide fortification against earthquakes level and define the acceleration peak value that different earthquake is imported;
Step 2: confirm the provide fortification against earthquakes target of level of different brackets, the target of setting up defences not only will be guaranteed the safety of device structure itself, will guarantee that more the dimension of equipment basic function is continuous;
Step 3:, select for use the electric equipment of the different brackets level of providing fortification against earthquakes to carry out the examination of shock resistance according to customer requirements and concrete requirement of engineering.
In the said step 1, according to the level of current domestic electric equipment shock resistance and socio-economic development, three grade electric equipments of the division level of providing fortification against earthquakes.
The said electric equipment level of providing fortification against earthquakes is divided into common, medium and high three ranks of level of providing fortification against earthquakes.
In the said step 1, said acceleration peak value comprises the acceleration peak value of real shake record and artificially seismic wave and the acceleration peak value that ripple is clapped in resonance.
Under the said common level situation of providing fortification against earthquakes, the acceleration peak value of real shake record and artificially seismic wave is 0.20g, and the acceleration peak value that ripple is clapped in resonance is 0.15g.
Under the situation of the said medium level of providing fortification against earthquakes, the acceleration peak value of real shake record and artificially seismic wave is 0.40g, and the acceleration peak value that ripple is clapped in resonance is 0.30g.
Under the situation of the said high level of providing fortification against earthquakes, the acceleration peak value of real shake record and artificially seismic wave is 0.60g, and the acceleration peak value that ripple is clapped in resonance is 0.40g.
In the said step 2, under the common level of providing fortification against earthquakes, the target of providing fortification against earthquakes of electric equipment is that all structures and the function of electric equipment is excellent, and device structure is in elastic stage basically, and the porcelain knob stress of root is no more than 20Mpa.
In the said step 2, under the medium level of providing fortification against earthquakes, the electric equipment target of providing fortification against earthquakes is that the agent structure of electric equipment is excellent, and its function is unaffected basically, can continue to use through simple-to-maintain, and the porcelain knob stress of root is no more than 30Mpa.
In the said step 2; Under the high level of providing fortification against earthquakes; The electric equipment target of providing fortification against earthquakes is that collapsing or fractureing does not appear in electric equipment, and its basic function still can be kept, and the porcelain knob stress of root is no more than 40Mp; Do not influence the normal operation of adjacent other equipment after the shake, but need take recovery measure or change the electric equipment parts.
Said electric equipment is a high voltage substation, and said high voltage substation comprises primary substation and step-down substation; Said primary substation and step-down substation include primary equipment and second protection equipment, and said primary equipment comprises circuit breaker, transformer and sleeve pipe, isolating switch, instrument transformer, lightning arrester and post insulator.
Subordinate list 2 is the provide fortification against earthquakes shock test examination operating mode design of level of electric equipment three grades.
Subordinate list 2
Embodiment 1
Fig. 1 is SF6 circuit breaker three grades that the are applied to 220kV vibration machine structural representations of providing fortification against earthquakes, and comprises interrupting porcelain insulator pipe, B-C post porcelain bushing, lower supporting rod porcelain bushing, connecting lever case and mechanism case.
Subordinate list 3 for 220kV SF6 circuit breaker at common seismic response of providing fortification against earthquakes during level;
Subordinate list 4 for 220kV SF6 circuit breaker at medium seismic response of providing fortification against earthquakes during level.
Subordinate list 3
Subordinate list 4
Embodiment 2
Fig. 2 is for being applied to 500kV lightning arrester shock resistance test examination structural representation; Comprise grading ring 1., top electrode 2., sealing ring 3., pressure ring 4., core component 5., magnetic shell 6., upper flange 7., lower flange 8. with cover plate 9..
Subordinate list 5 for the 500kV lightning arrester at common seismic response of providing fortification against earthquakes during level;
Subordinate list 5
Embodiment 1 and embodiment 2 provide fortification against earthquakes and wire examination method according to the proposition of patent of the present invention; Set the common and medium level of providing fortification against earthquakes of 220kV SF6 circuit breaker and 500kV lightning arrester; Designed the operating mode of shaketalle test examination in advance; Contrast the target of setting up defences of the corresponding level grade of setting up defences, can know that from subordinate list 2, subordinate list 3 circuit breaker of being examined has the shock resistance of the medium level of setting up defences basically; Can know that from subordinate list 4, subordinate list 5 lightning arrester of being examined does not have the shock resistance of the common and medium level of setting up defences, should take measures to strengthen its shock resistance, otherwise occur easily in the earthquake damaging.
In sum; The present invention is only from the shock resistance of electric equipment self; No longer confirm the antidetonation examination requirement of equipment, and preestablish the unified standard of providing fortification against earthquakes, make equipment producer, engineering design and owner's the level of setting up defences unanimity according to the fortification intensity in engineering zone of living in; Has clear concept, characteristics such as easy to operate;
The electric equipment three grades level of providing fortification against earthquakes has taken into full account and the integrating with of the requirements for fortification against earthquake of China existing standard; And according to current socio-economic development level and the society higher requirement has suitably improved the level of setting up defences to electric equipment; Common setting up defences corresponds essentially to the VIII degree and sets up defences; Medium setting up defences corresponds essentially to the IX degree and sets up defences, and high setting up defences corresponds essentially to the level of setting up defences of IX degree rarely occurred earthquake;
According to present China socio-economic development level; Examination criterion under the corresponding level of providing fortification against earthquakes that proposes of the present invention; Can significantly improve the shockproof requirements of China's electric equipment,, have important practical significance guaranteeing the antidetonation reliability of the electric equipment under all kinds of geological processes;
Be applicable to the aseismic design and the examination of all kinds of electric equipments of 35kV and above electric pressure, the aseismic design of the equipment of other type, the examination also can be with reference to employing.
Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although the present invention has been carried out detailed explanation with reference to the foregoing description; Under the those of ordinary skill in field be to be understood that: still can specific embodiments of the invention make amendment or be equal to replacement; And do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (11)
1. three grades of the electric equipment method of providing fortification against earthquakes is characterized in that: said method comprising the steps of:
Step 1: divide and provide fortification against earthquakes level and define the acceleration peak value that different earthquake is imported;
Step 2: confirm the target of providing fortification against earthquakes;
Step 3: the shock resistance of examination electric equipment.
2. the method for providing fortification against earthquakes of electric equipment according to claim 1 is characterized in that: in the said step 1, and according to the level of current domestic electric equipment shock resistance and socio-economic development, three grade electric equipments of the division level of providing fortification against earthquakes.
3. the method for providing fortification against earthquakes of electric equipment according to claim 2 is characterized in that: the said electric equipment level of providing fortification against earthquakes is divided into common, medium and high three ranks of level of providing fortification against earthquakes.
4. the method for providing fortification against earthquakes of electric equipment according to claim 1 is characterized in that: in the said step 1, said acceleration peak value comprises the acceleration peak value of real shake record and artificially seismic wave and the acceleration peak value of resonance bat ripple.
5. according to the method for providing fortification against earthquakes of claim 3 or 4 described electric equipments, it is characterized in that: under the said common level situation of providing fortification against earthquakes, the acceleration peak value of real shake record and artificially seismic wave is 0.20g, and the acceleration peak value that ripple is clapped in resonance is 0.15g.
6. according to the method for providing fortification against earthquakes of claim 3 or 4 described electric equipments, it is characterized in that: under the situation of the said medium level of providing fortification against earthquakes, the acceleration peak value of real shake record and artificially seismic wave is 0.40g, and the acceleration peak value that ripple is clapped in resonance is 0.30g.
7. according to the method for providing fortification against earthquakes of claim 3 or 4 described electric equipments, it is characterized in that: under the situation of the said high level of providing fortification against earthquakes, the acceleration peak value of real shake record and artificially seismic wave is 0.60g, and the acceleration peak value that ripple is clapped in resonance is 0.40g.
8. the method for providing fortification against earthquakes of electric equipment according to claim 1; It is characterized in that: in the said step 2; Under the common level of providing fortification against earthquakes; The target of providing fortification against earthquakes of electric equipment is that all structures and the function of electric equipment is excellent, and device structure is in elastic stage basically, and the porcelain knob stress of root is no more than 20Mpa.
9. the method for providing fortification against earthquakes of electric equipment according to claim 1; It is characterized in that: in the said step 2; Under the medium level of providing fortification against earthquakes, the electric equipment target of providing fortification against earthquakes is that the agent structure of electric equipment is excellent, and its function is unaffected basically; Can continue to use through simple-to-maintain, the porcelain knob stress of root is no more than 30Mpa.
10. the method for providing fortification against earthquakes of electric equipment according to claim 1; It is characterized in that: in the said step 2, under the high level of providing fortification against earthquakes, the electric equipment target of providing fortification against earthquakes is that collapsing or fractureing does not appear in electric equipment; Its basic function still can be kept; The porcelain knob stress of root is no more than 40Mp, does not influence the normal operation of adjacent other equipment after the shake, but need take recovery measure or change the electric equipment parts.
11. the method for providing fortification against earthquakes of electric equipment according to claim 1 is characterized in that: said electric equipment is a high voltage substation, and said high voltage substation comprises primary substation and step-down substation; Said primary substation and step-down substation include primary equipment and second protection equipment, and said primary equipment comprises circuit breaker, transformer and sleeve pipe, isolating switch, instrument transformer, lightning arrester and post insulator.
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| CN2012101389272A CN102664357A (en) | 2012-05-07 | 2012-05-07 | Three-grade seismic fortification method for electrical equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103530483A (en) * | 2013-11-04 | 2014-01-22 | 中国电力科学研究院 | Method for drawing power grid earthquake fortification partition map |
| CN104517022A (en) * | 2013-10-30 | 2015-04-15 | 国家电网公司 | Electric ceramic material electrical device seismic reliability determining method |
| CN105547617A (en) * | 2015-11-13 | 2016-05-04 | 中国电力科学研究院 | Ultrahigh voltage transformer substation main equipment porcelain bushing shock resistance detection method and component |
| CN109115435A (en) * | 2018-06-14 | 2019-01-01 | 中国电力科学研究院有限公司 | Extra-high-voltage alternating current switching mode controllable arrester separate structure and its antidetonation check method |
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| JPH052278B2 (en) * | 1986-07-01 | 1993-01-12 | Toshiba Kk |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104517022A (en) * | 2013-10-30 | 2015-04-15 | 国家电网公司 | Electric ceramic material electrical device seismic reliability determining method |
| CN103530483A (en) * | 2013-11-04 | 2014-01-22 | 中国电力科学研究院 | Method for drawing power grid earthquake fortification partition map |
| CN103530483B (en) * | 2013-11-04 | 2015-09-23 | 中国电力科学研究院 | The method for drafting of power grid earthquake fortification partition map |
| CN105547617A (en) * | 2015-11-13 | 2016-05-04 | 中国电力科学研究院 | Ultrahigh voltage transformer substation main equipment porcelain bushing shock resistance detection method and component |
| CN105547617B (en) * | 2015-11-13 | 2018-07-17 | 中国电力科学研究院 | A kind of ultra-high voltage transformer station main equipment porcelain bushing shell shock resistance detection method and component |
| CN109115435A (en) * | 2018-06-14 | 2019-01-01 | 中国电力科学研究院有限公司 | Extra-high-voltage alternating current switching mode controllable arrester separate structure and its antidetonation check method |
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Application publication date: 20120912 |