CN105116224A - Novel auxiliary line parameter testing tool and method - Google Patents
Novel auxiliary line parameter testing tool and method Download PDFInfo
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- CN105116224A CN105116224A CN201510386115.3A CN201510386115A CN105116224A CN 105116224 A CN105116224 A CN 105116224A CN 201510386115 A CN201510386115 A CN 201510386115A CN 105116224 A CN105116224 A CN 105116224A
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- ground rod
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Abstract
The invention relates to a novel auxiliary line parameter testing tool and method. The novel auxiliary line parameter testing tool comprises a test case and a knife-switch on the top of the test case, wherein a three-phase short-circuit joint and a three-phase short-circuit grounding joint are arranged on the two sides of the knife-switch, and a three-phase knife-switch is arranged on the test case and connected with a three-phase grounding pole through a three-phase test wire. The three-phase grounding pole comprises an A-phase grounding pole, a B-phase grounding pole and a C-phase grounding pole, wherein the A-phase grounding pole, the B-phase grounding pole and the C-phase grounding pole are formed by epoxy resin hitching rods and grounding pole joints, and the grounding pole joints are connected with the three-phase test wire. Switching operation and replacing short-circuit wire are replaced by free switching among three states of a knife-switch, and cooperation by operators is not necessary.
Description
Technical field
The present invention relates to a kind of line parameter circuit value proving installation, particularly a kind of Novel line parameter testing auxiliary tool device and method.
Background technology
At present; all new erections and transformation 220kV and above ultra-high-tension power transmission line before putting into operation; except checking line insulation situation, checking except phase place; also need to provide field measurement circuit power frequency parameter value accurately and reliably, to distribute as computing system short-circuit current, relay protection setting, reckoning trend and to select the actual foundation of the work such as the reasonable method of operation.The power frequency parameter of overhead transmission line mainly tests insulation resistance (comprising circuit nuclear phase), direct current resistance, positive sequence impedance, zero sequence impedance, positive sequence electric capacity, zero sequence electric capacity.Line parameter circuit value testing experiment flow process is complicated, step is various, needs testing crew to carry out the operations such as mounting line, line short circuit at circuit two ends, also needs operations staff's deciliter line-to-ground disconnecting link to coordinate in process of the test simultaneously.All bring a lot of repeatability trouble to like this operations staff and testing crew.
Summary of the invention
Object of the present invention is exactly in view of the foregoing defects the prior art has, provides a kind of Novel line parameter testing auxiliary tool device and method.
Its technical scheme is: the top the present invention includes and test casing, tested casing is provided with disconnecting link, the both sides of described disconnecting link are respectively equipped with three-phase short circuit joint and three-phase shortcircuit ground joint, test casing is provided with three-phase disconnecting link, three-phase disconnecting link connects three-phase ground bar by three-phase p-wire, described three-phase ground bar comprises A phase ground rod, B phase ground rod, C phase ground rod, A phase ground rod, B phase ground rod and C phase ground rod mount bar by epoxy resin and ground rod joint forms, and ground rod joint connects three-phase p-wire.
Above-mentioned epoxy resin mounting bar is expansion link.
A method of testing for Novel line parameter testing auxiliary tool device, comprises the following steps:
A) three-phase ground bar adopts ground rod joint and epoxy resin mounting bar, epoxy resin mounting bar as with line wire coupling part, the connection of ground rod joint and three-phase disconnecting link main body adopts 16 square millimeters of individual safety wires, the material of main part of three-phase disconnecting link device is the case structure of epoxide resin material, and operation part adopts the hand held device of open type;
B) copper bar is processed, make three-phase disconnecting link, and with copper bar, disconnecting link both sides are respectively equipped with three-phase shortcircuit joint, three-phase shortcircuit ground joint, adopt the annealed copper wire of 25 square millimeters, three-phase disconnecting link is drawn out to body side respectively from box house;
C) when testing, the ground rod joint of three-phase ground bar is clamped corresponding line wire respectively, test line is through lead-in wire, and point three-phase introduces disconnecting link, and when disconnecting link is placed in centre position, circuit is in three-phase open-circuit condition; When disconnecting link is in three-phase short circuit side, circuit is in three-phase shortcircuit state; Disconnecting link be in three-phase shortcircuit and ground connection side time, circuit is in three-phase shortcircuit ground connection, by disconnecting link freely switching between three kinds of states replace grid switching operation and change shorting stub, eliminate operations staff coordinate step, complete test.
The invention has the beneficial effects as follows: line parameter circuit value testing experiment flow process is simple, step is few, do not need testing crew to carry out the operations such as mounting line, line short circuit at circuit two ends, in process of the test, operations staff's deciliter line-to-ground switch operation is simple; Replace grid switching operation by disconnecting link freely switching between three kinds of states and change shorting stub, eliminating the step that operations staff coordinates.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is structural representations of A phase ground rod;
In upper figure: test casing 1, disconnecting link 2, three-phase short circuit joint 3, three-phase shortcircuit ground joint 4, three-phase disconnecting link 5, three-phase p-wire 6, A phase ground rod 7, B phase ground rod 8 and C phase ground rod 9.
Embodiment
1-2 by reference to the accompanying drawings, the invention will be further described:
The present invention includes test casing 1, the top of test casing 1 is provided with disconnecting link 2, the both sides of described disconnecting link 2 are respectively equipped with three-phase short circuit joint 3 and three-phase shortcircuit ground joint 4, test casing 1 is provided with three-phase disconnecting link 5, three-phase disconnecting link 5 connects three-phase ground bar by three-phase p-wire 6, described three-phase ground bar comprises A phase ground rod 7, B phase ground rod 8, C phase ground rod 9, A phase ground rod 7, B phase ground rod 8 and C phase ground rod 9 mount bar by epoxy resin and ground rod joint forms, and ground rod joint connects three-phase p-wire.
Wherein, epoxy resin mounting bar is expansion link, and expansion link can free adjustment collapsing length, realizes the convenience of test.
The method of testing of a kind of Novel line parameter testing auxiliary tool device that the present invention mentions, comprises the following steps:
A) three-phase ground bar adopts ground rod joint and epoxy resin mounting bar, epoxy resin mounting bar as with line wire coupling part, the connection of ground rod joint and three-phase disconnecting link main body adopts 16 square millimeters of individual safety wires, the material of main part of three-phase disconnecting link device is the case structure of epoxide resin material, and operation part adopts the hand held device of open type;
B) copper bar is processed, make three-phase disconnecting link, and with copper bar, disconnecting link both sides are respectively equipped with three-phase shortcircuit joint, three-phase shortcircuit ground joint, adopt the annealed copper wire of 25 square millimeters, three-phase disconnecting link is drawn out to body side respectively from box house;
C) when testing, the ground rod joint b of three-phase ground bar is clamped corresponding line wire respectively, test line is through lead-in wire, and point three-phase introduces disconnecting link, and when disconnecting link is placed in centre position, circuit is in three-phase open-circuit condition; When disconnecting link is in three-phase short circuit side, circuit is in three-phase shortcircuit state; Disconnecting link be in three-phase shortcircuit and ground connection side time, circuit is in three-phase shortcircuit ground connection, by disconnecting link freely switching between three kinds of states replace grid switching operation and change shorting stub, eliminate operations staff coordinate step, complete test.
The invention has the beneficial effects as follows: line parameter circuit value testing experiment flow process is simple, step is few, do not need testing crew to carry out the operations such as mounting line, line short circuit at circuit two ends, in process of the test, operations staff's deciliter line-to-ground switch operation is simple; Replace grid switching operation by disconnecting link freely switching between three kinds of states and change shorting stub, eliminating the step that operations staff coordinates.
The above, be only part preferred embodiment of the present invention, any those of ordinary skill in the art all may utilize the technical scheme correct of above-mentioned elaboration or are revised as equivalent technical scheme.Therefore, any simple modification of carrying out according to technical scheme of the present invention or substitute equivalents, belong to the scope of protection of present invention to the greatest extent.
Claims (3)
1. a Novel line parameter testing auxiliary tool device, it is characterized in that: comprise test casing (1), the top of test casing (1) is provided with disconnecting link (2), the both sides of described disconnecting link (2) are respectively equipped with three-phase short circuit joint (3) and three-phase shortcircuit ground joint (4), test casing (1) is provided with three-phase disconnecting link (5), three-phase disconnecting link (5) connects three-phase ground bar by three-phase p-wire (6), described three-phase ground bar comprises A phase ground rod (7), B phase ground rod (8), C phase ground rod (9), A phase ground rod (7), B phase ground rod (8) and C phase ground rod (9) mount bar (a) by epoxy resin and ground rod joint (b) forms, ground rod joint (b) connects three-phase p-wire (6).
2. a kind of Novel line parameter testing auxiliary tool device according to claim 1, is characterized in that: described epoxy resin mounting bar (a) is expansion link.
3. the method for testing of a kind of Novel line parameter testing auxiliary tool device according to claim 1 and 2, is characterized in that, comprise the following steps:
A) three-phase ground bar adopts ground rod joint and epoxy resin mounting bar, epoxy resin mounting bar as with line wire coupling part, the connection of ground rod joint and three-phase disconnecting link main body adopts 16 square millimeters of individual safety wires, the material of main part of three-phase disconnecting link device is the case structure of epoxide resin material, and operation part adopts the hand held device of open type;
B) copper bar is processed, make three-phase disconnecting link (5), be respectively equipped with three-phase shortcircuit joint, three-phase shortcircuit ground joint with copper bar in three-phase disconnecting link (5) both sides, adopt the annealed copper wire of 25 square millimeters, three-phase disconnecting link (5) is drawn out to body side respectively from test casing (1) inside;
C) when testing, ground rod joint (b) of three-phase ground bar is clamped corresponding line wire respectively, test line is through lead-in wire, and point three-phase introduces disconnecting link, and when disconnecting link is placed in centre position, circuit is in three-phase open-circuit condition; When disconnecting link is in three-phase short circuit side, circuit is in three-phase shortcircuit state; Disconnecting link be in three-phase shortcircuit and ground connection side time, circuit is in three-phase shortcircuit ground connection, by disconnecting link freely switching between three kinds of states replace grid switching operation and change shorting stub, eliminate operations staff coordinate step, complete test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510386115.3A CN105116224A (en) | 2015-07-04 | 2015-07-04 | Novel auxiliary line parameter testing tool and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510386115.3A CN105116224A (en) | 2015-07-04 | 2015-07-04 | Novel auxiliary line parameter testing tool and method |
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| Publication Number | Publication Date |
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| CN105116224A true CN105116224A (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510386115.3A Pending CN105116224A (en) | 2015-07-04 | 2015-07-04 | Novel auxiliary line parameter testing tool and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643426A (en) * | 2016-07-20 | 2018-01-30 | 国网辽宁省电力有限公司丹东供电公司 | Control cabinet for transmission line parameter test lead |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201327509Y (en) * | 2008-12-19 | 2009-10-14 | 河南电力试验研究院 | High-voltage transmission line parameter measuring device and system thereof |
| CN102495247A (en) * | 2011-12-26 | 2012-06-13 | 安徽省电力公司阜阳供电公司 | Electrical parameter test lead connection method and device for power line |
| CN202330518U (en) * | 2011-11-07 | 2012-07-11 | 江西省电力科学研究院 | Anti-induction electric operation cabinet for parameter test of overhead power transmission lines |
| CN203054022U (en) * | 2012-12-19 | 2013-07-10 | 国家电网公司 | Change-over switch for line parameter testing |
| CN203811635U (en) * | 2014-04-02 | 2014-09-03 | 国家电网公司 | Cable insulation test fixture |
-
2015
- 2015-07-04 CN CN201510386115.3A patent/CN105116224A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201327509Y (en) * | 2008-12-19 | 2009-10-14 | 河南电力试验研究院 | High-voltage transmission line parameter measuring device and system thereof |
| CN202330518U (en) * | 2011-11-07 | 2012-07-11 | 江西省电力科学研究院 | Anti-induction electric operation cabinet for parameter test of overhead power transmission lines |
| CN102495247A (en) * | 2011-12-26 | 2012-06-13 | 安徽省电力公司阜阳供电公司 | Electrical parameter test lead connection method and device for power line |
| CN203054022U (en) * | 2012-12-19 | 2013-07-10 | 国家电网公司 | Change-over switch for line parameter testing |
| CN203811635U (en) * | 2014-04-02 | 2014-09-03 | 国家电网公司 | Cable insulation test fixture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643426A (en) * | 2016-07-20 | 2018-01-30 | 国网辽宁省电力有限公司丹东供电公司 | Control cabinet for transmission line parameter test lead |
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Application publication date: 20151202 |