CN204065243U - The straight resistive of dry-type transformer compares testing auxiliary device - Google Patents

The straight resistive of dry-type transformer compares testing auxiliary device Download PDF

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Publication number
CN204065243U
CN204065243U CN201420519833.4U CN201420519833U CN204065243U CN 204065243 U CN204065243 U CN 204065243U CN 201420519833 U CN201420519833 U CN 201420519833U CN 204065243 U CN204065243 U CN 204065243U
Authority
CN
China
Prior art keywords
binding post
relay
contact
gear
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420519833.4U
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Chinese (zh)
Inventor
翟汉刚
李一齐
李振华
周栋
李炳成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Anqiu Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Anqiu Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Anqiu Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201420519833.4U priority Critical patent/CN204065243U/en
Application granted granted Critical
Publication of CN204065243U publication Critical patent/CN204065243U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses the straight resistive of a kind of dry-type transformer and compare testing auxiliary device, comprise test auxiliary body, described test auxiliary body is provided with the switch with multiple gear, and the relay corresponding with the gear number of described switch, described test auxiliary body is also provided with protective ground binding post and many group binding post groups, the described binding post group of many groups is arranged in order setting; Each gear of described switch is provided with the first contact and the second contact, and described first contact receives AC power live wire, and described second contact receives one end of the coil of corresponding described relay; The terminals of three pairs of normally opened contacts of described relay are connected on binding post corresponding in two adjacent groups binding post group respectively.Only need primary connection by the utility model, just can complete the work of linear transformation gear in several seconds, repeatedly need not enter transformer case, on average save time about 50 minutes, thus effectively shorten working hours, increase work efficiency.

Description

The straight resistive of dry-type transformer compares testing auxiliary device
Technical field
The utility model relates to a kind of dry-type transformer testing auxiliary device, particularly relates to the straight resistive of a kind of dry-type transformer and compares testing auxiliary device.
Background technology
Its gear of the dry-type transformer of current use is fixed by copper brace bolt presses, must unclamp corresponding separate bolt respectively when transferring the files by A, B, C phase, and adjustment brace to appropriate location, then is fixed again with bolt.Adopt traditional experiment pattern, testing crew must complete by the connection changing brace the work of transferring the files, average replacing one is connected 2 minutes consuming time of contact pin, often survey one grade is consuming time 6 minutes, along with increasing of transformer gear, conversion gear process repetitive operation is too many, and details is very loaded down with trivial details, the at substantial time.For 5 grades of transformers, straight resistance, no-load voltage ratio need respectively to transfer the files 5 times 60 minutes consuming time altogether, add the test duration, the turnover transformer case time, and average every platform transformer needs within more than one and a half hours, just to complete these two pilot projects.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of quick adjustment realizing gear, reduces repeated labor, shortens working hours, and the straight resistive of the dry-type transformer of increasing work efficiency compares testing auxiliary device.
For solving the problems of the technologies described above, the technical solution of the utility model is: the straight resistive of dry-type transformer compares testing auxiliary device, comprise test auxiliary body, described test auxiliary body is connected with AC power, described test auxiliary body is provided with the switch with multiple gear, and the relay corresponding with the gear number of described switch, described test auxiliary body is also provided with protective ground binding post and many group binding post groups, many groups of described binding post groups are arranged in order setting, and described binding post group quantity has more described switch numbers of gear steps one group, described binding post group comprises three binding posts respectively, described protective ground binding post is connected with ground wire,
Each gear of described switch is provided with the first contact and the second contact, and described first contact receives AC power live wire, and described second contact receives one end of the coil of corresponding described relay, and the coil other end of described relay receives AC power zero line; Described relay is provided with three pairs of normally opened contacts, and the terminals of three of described relay pairs of normally opened contacts are connected on binding post corresponding in two adjacent groups binding post group respectively.
As preferred technical scheme, the switch position number of described switch is five grades, and described relay quantity is five, and the group number of described binding post group is six groups.
As the further improvement to technique scheme, described relay is three-phase electrical relay, and working power is AC220V.
As the further improvement to technique scheme, described binding post is the binding post that plug-in connects.
Owing to have employed technique scheme, the beneficial effects of the utility model are: only need primary connection by the utility model, just can complete the work of linear transformation gear in several seconds, repeatedly need not enter transformer case, on average save time about 50 minutes, thus effectively shorten working hours, increase work efficiency.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the circuit theory diagrams that the utility model embodiment relay coil is connected with changer contact;
Fig. 3 is the switch principle of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art can recognize, when not departing from spirit and scope of the present utility model, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.
As shown in Figure 1, the straight resistive of dry-type transformer compares testing auxiliary device, comprise test auxiliary body, described test auxiliary body is connected with AC power, described test auxiliary body can be connected with described AC power by ac power plug, described test auxiliary body is provided with the switch with multiple gear, and the relay corresponding with the gear number of described switch, described test auxiliary body is also provided with protective ground binding post and many group binding post groups, many groups of described binding post groups are arranged in order setting, and described binding post group quantity has more described switch numbers of gear steps one group, described binding post group comprises three binding posts respectively, described protective ground binding post is connected with ground wire, shield.
Each gear of described switch is provided with the first contact and the second contact, and described first contact receives AC power live wire, and described second contact receives one end of the coil of corresponding described relay, and the coil other end of described relay receives AC power zero line; Described relay is provided with three pairs of normally opened contacts, and the terminals of three of described relay pairs of normally opened contacts are connected on binding post corresponding in two adjacent groups binding post group respectively.
Described relay is three-phase electrical relay, and working power is AC220V.Described binding post is the binding post that plug-in connects.
The switch position number of described switch is five grades, and each gear of described switch is provided with the first contact and the second contact, and namely first contact of a grade is contact 1, second contact is contact 2; First contact of second gear is contact 3, second contact is contact 4; First contact of third gear is contact 5, second contact is contact 6; First contact of fourth gear is contact 7, second contact is contact 8; First contact of five grades is contact 9, second contact is contact 10.
Described relay quantity is five, i.e. one grade of relay, second gear relay, third gear relay, fourth gear relay and five grades of relays.
The group number of described binding post group is six groups, i.e. one group of binding post (A 1, B 1, C 1), two groups of binding post (A 2, B 2, C 2), three groups of binding post (A 3, B 3, C 3), four groups of binding post (A 4, B 4, C 4), five groups of binding post (A 5, B 5, C 5), six groups of binding post (A 6, B 6, C 6).
Described first contact of described switch one grade and contact 1 receive AC power live wire, and described second contact of described switch one grade and contact 2 receive one end of the coil of one grade of relay, and the coil other end of one grade of relay receives AC power zero line;
Described in described switch second gear, the first contact and contact 3 receive AC power live wire, and described in described switch second gear, the second contact and contact 4 receive one end of the coil of second gear relay, and the coil other end of second gear relay receives AC power zero line;
Described in described switch third gear, the first contact and contact 5 receive AC power live wire, and described in described switch third gear, the second contact and contact 6 receive one end of the coil of third gear relay, and the coil other end of third gear relay receives AC power zero line;
Described in described switch fourth gear, the first contact and contact 7 receive AC power live wire, and described in described switch fourth gear, the second contact and contact 8 receive one end of the coil of fourth gear relay, and the coil other end of fourth gear relay receives AC power zero line;
Described first contact of described switch five grades and contact 9 receive AC power live wire, and described second contact of described switch five grades and contact 10 receive one end of the coil of five grades of relays, and the coil other end of five grades of relays receives AC power zero line;
The terminals of three pairs of normally opened contacts of described relay are connected on binding post corresponding in two adjacent groups binding post group respectively.
The terminals of three pairs of normally opened contacts of one grade of relay are connected to binding post (A respectively 1, A 2), binding post (B 1, B 2) and binding post (C 1, C 2);
The terminals of three pairs of normally opened contacts of second gear relay are connected to binding post (A respectively 2, A 3), binding post (B 2, B 3) and binding post (C 2, C 3);
The terminals of three pairs of normally opened contacts of third gear relay are connected to binding post (A respectively 3, A 4), binding post (B 3, B 4) and binding post (C 3, C 4);
The terminals of three pairs of normally opened contacts of fourth gear relay are connected to binding post (A respectively 4, A 5), binding post (B 4, B 5) and binding post (C 4, C 5);
The terminals of three pairs of normally opened contacts of five grades of relays are connected to binding post (A respectively 5, A 6), binding post (B 5, B 6) and binding post (C 5, C 6).
As shown in Figures 2 and 3, when measuring, by described binding post (A1, A2 ...) etc. shunting tap corresponding to tested transformer (A1, A2 ...) etc. connection.
When switch forwards 1 grade to, contact 1-2 conducting, the coil electricity of described one grade of relay, the normally opened contact adhesive conducting of described one grade of relay, described binding post A 1with described binding post A 2conducting, described binding post B 1with described binding post B 2conducting, described binding post C 1with described binding post C 2conducting, measuring transformer one grade is resistance or no-load voltage ratio directly.
When switch forwards 2 grades to, contact 3-4 conducting, the coil electricity of described second gear relay, the normally opened contact adhesive conducting of described second gear relay, described binding post A 2with described binding post A 3conducting, described binding post B 2with described binding post B 3conducting, described binding post C 2with described binding post C 3conducting, measuring transformer second gear directly hinders or no-load voltage ratio.
When switch forwards 3 grades to, contact 5-6 conducting, the coil electricity of described third gear relay, the normally opened contact adhesive conducting of described third gear relay, described binding post A 3with described binding post A 4conducting, described binding post B 3with described binding post B 4conducting, described binding post C 3with described binding post C 4conducting, measuring transformer third gear directly hinders or no-load voltage ratio.
When switch forwards 4 grades to, contact 7-8 conducting, the coil electricity of described fourth gear relay, the normally opened contact adhesive conducting of described fourth gear relay, described binding post A 4with described binding post A 5conducting, described binding post B 4with described binding post B 5conducting, described binding post C 4with described binding post C 5conducting, measuring transformer fourth gear directly hinders or no-load voltage ratio.
When switch forwards 5 grades to, contact 9-10 conducting, the coil electricity of described five grades of relays, the normally opened contact adhesive conducting of described five grades of relays, described binding post A 5with described binding post A 6conducting, described binding post B 5with described binding post B 6conducting, described binding post C 5with described binding post C 6conducting, measuring transformer five grades is resistance or no-load voltage ratio directly.
The beneficial effect of the present embodiment is: only need primary connection by the utility model, just can complete the work of linear transformation gear in several seconds, repeatedly need not enter transformer case, on average save time about 50 minutes, thus effectively shorten working hours, increase work efficiency.
More than show and describe ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (4)

1. the straight resistive of dry-type transformer compares testing auxiliary device, comprise test auxiliary body, described test auxiliary body is connected with AC power, it is characterized in that: described test auxiliary body is provided with the switch with multiple gear, and the relay corresponding with the gear number of described switch, described test auxiliary body is also provided with protective ground binding post and many group binding post groups, many groups of described binding post groups are arranged in order setting, and described binding post group quantity has more described switch numbers of gear steps one group, described binding post group comprises three binding posts respectively, described protective ground binding post is connected with ground wire,
Each gear of described switch is provided with the first contact and the second contact, and described first contact receives AC power live wire, and described second contact receives one end of the coil of corresponding described relay, and the coil other end of described relay receives AC power zero line; Described relay is provided with three pairs of normally opened contacts, and the terminals of three of described relay pairs of normally opened contacts are connected on binding post corresponding in two adjacent groups binding post group respectively.
2. the straight resistive of dry-type transformer as claimed in claim 1 is than testing auxiliary device, and it is characterized in that: the switch position number of described switch is five grades, and described relay quantity is five, the group number of described binding post group is six groups.
3. the straight resistive of dry-type transformer as claimed in claim 1 is than testing auxiliary device, and it is characterized in that: described relay is three-phase electrical relay, working power is AC220V.
4. the straight resistive of dry-type transformer as described in claim 1,2 or 3, than testing auxiliary device, is characterized in that: described binding post is the binding post that plug-in connects.
CN201420519833.4U 2014-09-11 2014-09-11 The straight resistive of dry-type transformer compares testing auxiliary device Expired - Fee Related CN204065243U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420519833.4U CN204065243U (en) 2014-09-11 2014-09-11 The straight resistive of dry-type transformer compares testing auxiliary device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420519833.4U CN204065243U (en) 2014-09-11 2014-09-11 The straight resistive of dry-type transformer compares testing auxiliary device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020258822A1 (en) * 2019-06-28 2020-12-30 浙江驰拓科技有限公司 Testing structure and testing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020258822A1 (en) * 2019-06-28 2020-12-30 浙江驰拓科技有限公司 Testing structure and testing method

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141231

Termination date: 20150911

EXPY Termination of patent right or utility model