CN105823936A - Telescopic current transformer rated ratio testing device - Google Patents
Telescopic current transformer rated ratio testing device Download PDFInfo
- Publication number
- CN105823936A CN105823936A CN201610303342.XA CN201610303342A CN105823936A CN 105823936 A CN105823936 A CN 105823936A CN 201610303342 A CN201610303342 A CN 201610303342A CN 105823936 A CN105823936 A CN 105823936A
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- base
- trigger
- throat
- gun barrel
- current transformer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/20—Measuring number of turns; Measuring transformation ratio or coupling factor of windings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Insulating Bodies (AREA)
Abstract
The invention relates to the power test equipment auxiliary test field, and specifically relates to a telescopic current transformer rated ratio testing rod. The telescopic current transformer rated ratio testing device comprises at least one insulating rod, an alligator clip, a gun body for controlling linkage of the alligator clip, a haulage rope, an insulating annealed copper wire and a binding post, and is characterized in that the insulating rod is provided with an inner sleeve and an outer sleeve; a 45DEG included angle is formed between the base of the alligator clip and the central axis of the alligator clip; the gun body includes a gun barrel, a gun holder and a trigger; one end of the trigger penetrates through a trigger hole and then enter the gun barrel; and a lacing hole is formed in the end part of the end of the trigger. Compared with the prior art, the telescopic current transformer rated ratio testing device accords with the human engineering, so that when people holds the gun holder in one hand of the people and the other hand of the people holds the insulating rod and stretches out the insulating rod forward, a 45DEG angle is basically formed between the insulating rod and the ground. Therefore, the alligator clip at the head is arranged in an inclined way by 45DEG and is accurate in operation and control; and, the telescopic current transformer rated ratio testing device has a gun-simulating design and is unique in the moulding.
Description
Technical field
This invention relates to power test equipment subtest field, is specifically related to a kind of extension type current transformer ratio test device.
Background technology
Protection test personnel are time in Current Transformer tester is to switch cabinet of converting station, the parameter such as current transformer ratio is tested; owing to switch cubicle altitude chamber is the narrowest and small; and current transformer is in depths, altitude chamber, on copper bar of current transformer, wiring is the most difficult.It is the most all that the personnel using slight of stature creep into switch cubicle internal wiring, bothersome arduously, if for the little switch cubicle that is difficult to enter often by substation field insulating bar, testing wire clamp being bound and delivers on current transformer flat copper line, but this method is lost time, contact bad affects test result simultaneously.
The Chinese utility model patent of Publication No. CN203909260U discloses a kind of transformer substation current transformer no-load voltage ratio test plug-in type junction pole, including the hook with electric conductivity, hook portion at hook fixes the elastic card with electric conductivity, is fixed with bolt on hook；The cross section of described hook is groove-like structure, is provided with a bar hole on the coupler body of a termination of hook；Being plugged with at the bar hole of described hook and link up with the plug-in type insulation bar mated, this plug-in type insulation bar includes again at least two connecting rods；There is in described connecting rod bar hole, be bolted at bar hole after being mutually inserted between connecting rod and be formed as one plug-in type insulation bar；After the connecting rod linked up with hook grafting, bar hole is bolted after fitting with the bar hole in this connecting rod to be integrated.Although this technical scheme can remotely carry out current transformer ratio test, but due in test process be by operator hold plug-in type insulation bar by hook lift respectively to the connection wire of current transformer both sides, it is stuck on wire by elastic card, it is achieved strong current generator is tested with current transformer conducting.But owing to elastic and wire are snap-fit relationship, the most inevitably there is jitter phenomenon, thus cause curent change, affect test result.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of scalable formula current transformer ratio test device, can facilitate and connect primary line deftly, it is simple to measure and guarantee the accuracy of measurement result.
To this end, the present invention adopts the technical scheme that:
A kind of extension type current transformer ratio test device, including more than one insulating bar 1, alligator clamp 2, controls the gun body 3 of alligator clamp linkage, pull rope 4, insulation annealed copper wire 5, binding post 6, it is characterised in that:
One end female inner sleeve of affixed band 12 of described insulating bar 1, the other end is affixed with externally threaded outer sleeve 13, the inner sleeve of an other insulating bar can screw with the outer sleeve of this root insulating bar, the body of rod 11 of insulating bar is offered and can hold the fairlead 14 that insulation annealed copper wire 5 passes；
Described alligator clamp includes upper clamping part 23, two leaf springs 24, bearing pins 25 that lower clamping part 22 that base 21 and base 21 are fixed together is hinged with lower clamping part 22；Described base one end with female thread can screw with insulating bar outer sleeve, the other end of base arranges the oblong-shaped ramps 211 with its axis angle at 45 °, the short-axis direction of oblong-shaped ramps arranges the notch 212 being perpendicular to this inclined-plane, the sidewall of base is arranged and holds the square hole 213 that binding post 6 passes；Lower clamping part 22 includes oval throat 220 corresponding with base 21 oblong-shaped ramps shape, throat arranges oval throat 221 corresponding with the lumen shape of base 21 oblong-shaped ramps, the boss 222 coordinated with the notch 212 of base is set along short-axis direction below throat, arrange lower hinge plate 223 in throat side, throat's opposite side oliquely downward extends the lower rhynchodaenm 224 of formation；Upper clamping part 23 includes that maxillary portion 230, the one end in maxillary portion arrange hinge plate 231, and maxillary portion extends obliquely upward and forms upper rhynchodaenm 232, the chute 234 maxillary portion also sets up, corresponding to throat center, the cord hole 233 held pull rope 4 and pass, holding leaf spring activity within it；Together with lower hinge plate 223 and upper hinge plate 231 are joined by bearing pin 25, sheathed leaf spring 24 on bearing pin 25, one end of leaf spring 24 arranges and is against in throat 221, and the other end is against in chute 234；
One end of described pull rope 4 through base 21 tube chamber, the throat 221 of lower clamping part 22, maxillary portion cord hole 233 after an affixed latch segment 41；
One end of described insulation annealed copper wire 5 is linked together with base 21 through the tube chamber of base 21 and in tube chamber by binding post 6；
Described binding post 6 includes baffle plate 61, quadrangular 62 that is that be connected as a single entity with baffle plate and that coordinate with the square hole on base, the wiring hole 63 that insulation annealed copper wire the end of a thread after holding peeling penetrates, the screw rod 64 being connected as a single entity with quadrangular, the nut 65 coordinated with screw rod are set on quadrangular 62；
Described gun body 3 includes gun barrel 31, rifle holds 32, trigger 33, one end of described gun barrel 31 is with the external screw thread 311 screwed with insulating bar inner sleeve 12, a pair is arranged laterally to perforation and longitudinal trigger hole 312 on the sidewall of gun barrel 31, a bolt 34 is penetrated in perforation, sheathed pulley 35 on bolt in gun barrel, sheathed support 36 on the bolt of the outer both sides of gun barrel, support 36 is fixed on gun barrel by nut 37, support 36 extends to gun barrel external screw thread direction and forms trigger housing 38, below support 36, affixed rifle holds 32, hinged trigger 33 on trigger housing 38, in one end of trigger 33 enters gun barrel through trigger hole 312 and lacing hole is set in this end end；
The other end of described pull rope 4 is fixing after penetrating the lacing hole on trigger after passing gun barrel after pulley 35 turns to.
Further, the upper plane of lower rhynchodaenm and the angle of plane existence 200 °-210 ° in throat, there is the angle of 200 °-210 ° in the lower surface in the lower surface of upper rhynchodaenm and maxillary portion.
Further, the upper surface of lower rhynchodaenm, the lower surface of upper rhynchodaenm arrange sawtooth tooth 235.
Compared with prior art, the present invention meets human engineering, holds when people one holds rifle, when another holds insulating bar and forward extends out, the angle that insulating bar is substantially at 45 ° with ground, the alligator clamp of head the most of the present invention is arranged with 45 degree of directions tilted, is manipulated precisely.And the present invention intends rifle design, moulding uniqueness.
Accompanying drawing explanation
Fig. 1 is the structural representation after the present invention assembles.
Fig. 2 is the structural representation of insulating bar of the present invention.
Fig. 3 is the structural representation of alligator clamp of the present invention.
Fig. 4 is the structural representation at another visual angle of alligator clamp of the present invention.
Fig. 5 is the enlarged drawing at Fig. 4 dashed box.
Fig. 6 is the explosive view of alligator clamp of the present invention.
Fig. 7 is the structure front view of gun body of the present invention.
Fig. 8 is the structural representation at another visual angle of gun body of the present invention.
Fig. 9 is the sectional view of Fig. 8.
Detailed description of the invention
See Fig. 1-9, a kind of extension type current transformer ratio test device, including more than one insulating bar 1, alligator clamp 2, control the gun body 3 of alligator clamp linkage, pull rope 4, insulation annealed copper wire 5, binding post 6, it is characterised in that:
One end female inner sleeve of affixed band 12 of described insulating bar 1, the other end is affixed with externally threaded outer sleeve 13, the inner sleeve of an other insulating bar can screw with the outer sleeve of this root insulating bar, the body of rod 11 of insulating bar is offered and can hold the fairlead 14 that insulation annealed copper wire 5 passes；
Described alligator clamp includes upper clamping part 23, two leaf springs 24, bearing pins 25 that lower clamping part 22 that base 21 and base 21 are fixed together is hinged with lower clamping part 22；Described base one end with female thread can screw with insulating bar outer sleeve, the other end of base arranges the oblong-shaped ramps 211 with its axis angle at 45 °, the short-axis direction of oblong-shaped ramps arranges the notch 212 being perpendicular to this inclined-plane, the sidewall of base is arranged and holds the square hole 213 that binding post 6 passes；Lower clamping part 22 includes oval throat 220 corresponding with base 21 oblong-shaped ramps shape, throat arranges oval throat 221 corresponding with the lumen shape of base 21 oblong-shaped ramps, the boss 222 coordinated with the notch 212 of base is set along short-axis direction below throat, arrange lower hinge plate 223 in throat side, throat's opposite side oliquely downward extends the lower rhynchodaenm 224 of formation；Upper clamping part 23 includes that maxillary portion 230, the one end in maxillary portion arrange hinge plate 231, and maxillary portion extends obliquely upward and forms upper rhynchodaenm 232, the chute 234 maxillary portion also sets up, corresponding to throat center, the cord hole 233 held pull rope 4 and pass, holding leaf spring activity within it；Together with lower hinge plate 223 and upper hinge plate 231 are joined by bearing pin 25, sheathed leaf spring 24 on bearing pin 25, one end of leaf spring 24 arranges and is against in throat 221, and the other end is against in chute 234；
One end of described pull rope 4 through base 21 tube chamber, the throat 221 of lower clamping part 22, maxillary portion cord hole 233 after an affixed latch segment 41；
One end of described insulation annealed copper wire 5 is linked together with base 21 through the tube chamber of base 21 and in tube chamber by binding post 6；
Described binding post 6 includes baffle plate 61, quadrangular 62 that is that be connected as a single entity with baffle plate and that coordinate with the square hole on base, the wiring hole 63 that insulation annealed copper wire the end of a thread after holding peeling penetrates, the screw rod 64 being connected as a single entity with quadrangular, the nut 65 coordinated with screw rod are set on quadrangular 62；
Described gun body 3 includes gun barrel 31, rifle holds 32, trigger 33, one end of described gun barrel 31 is with the external screw thread 311 screwed with insulating bar inner sleeve 12, a pair is arranged laterally to perforation and longitudinal trigger hole 312 on the sidewall of gun barrel 31, a bolt 34 is penetrated in perforation, sheathed pulley 35 on bolt in gun barrel, sheathed support 36 on the bolt of the outer both sides of gun barrel, support 36 is fixed on gun barrel by nut 37, support 36 extends to gun barrel external screw thread direction and forms trigger housing 38, below support 36, affixed rifle holds 32, hinged trigger 33 on trigger housing 38, in one end of trigger 33 enters gun barrel through trigger hole 312 and lacing hole is set in this end end；
The other end of described pull rope 4 is fixing after penetrating the lacing hole on trigger after passing gun barrel after pulley 35 turns to.
There is the angle of the lower surface existence 205 ° in the angle of 205 °, the lower surface of upper rhynchodaenm and maxillary portion in the upper plane of lower rhynchodaenm and plane in throat.
The upper surface of lower rhynchodaenm, the lower surface of upper rhynchodaenm arrange sawtooth tooth 235.
During use, each several part is fitted together, according to the far and near selection one being devices under or many with insulating bar, and make pull rope be in tensioning state, and insulation annealed copper wire is received on current transformer calibrator, then one insulating bar is held, one holds rifle holds and is buckled on trigger by forefinger, alligator clamp is protracted, make, lower retaining part is in being devices under the upper of flat copper line, under, forefinger pulls trigger, on alligator clamp, lower clamping part is engaged, insulation annealed copper wire is fully overlapped with flat copper line, electric current and potential conduction complete verification on current transformer calibrator.
Claims (3)
1. an extension type current transformer ratio test device, including more than one insulating bar (1), alligator clamp (2), controls the gun body (3) of alligator clamp linkage, pull rope (4), insulation annealed copper wire (5), binding post (6), it is characterised in that:
The female inner sleeve of the affixed band in one end (12) of described insulating bar (1), the other end is affixed with externally threaded outer sleeve (13), the inner sleeve of an other insulating bar can screw with the outer sleeve of this root insulating bar, the body of rod (11) of insulating bar is offered and can hold the fairlead (14) that insulation annealed copper wire (5) passes；
Described alligator clamp includes lower clamping part (22) that base (21) and base (21) be fixed together and the hinged upper clamping part (23) of lower clamping part (22), two leaf springs (24), bearing pins (25)；Described base one end with female thread can screw with insulating bar outer sleeve, the other end of base arranges the oblong-shaped ramps (211) with its axis angle at 45 °, the short-axis direction of oblong-shaped ramps arranges the notch (212) being perpendicular to this inclined-plane, the sidewall of base is arranged and holds the square hole (213) that binding post (6) passes；Lower clamping part (22) includes oval throat (220) corresponding with base (21) oblong-shaped ramps shape, throat arranges oval throat (221) corresponding with the lumen shape of base (21) oblong-shaped ramps, the boss (222) coordinated with the notch (212) of base is set along short-axis direction below throat, arrange lower hinge plate (223) in throat side, throat's opposite side oliquely downward extends the lower rhynchodaenm (224) of formation；Upper clamping part (23) includes maxillary portion (230), the one end in maxillary portion arranges hinge plate (231), maxillary portion extends obliquely upward and forms upper rhynchodaenm (232), the chute (234) maxillary portion also sets up, corresponding to throat center, the cord hole (233) held pull rope (4) and pass, holding leaf spring activity within it；Lower hinge plate (223) and upper hinge plate (231) are joined together by bearing pin (25), and the upper sheathed leaf spring (24) of bearing pin (25), one end of leaf spring (24) arranges and is against in throat (221), and the other end is against in chute (234)；
One end of described pull rope (4) passes base (21) tube chamber, the throat (221) of lower clamping part (22), the most affixed latch segment (41) of cord hole (233) in maxillary portion；
One end of described insulation annealed copper wire (5) is linked together with base (21) through the tube chamber of base (21) and in tube chamber by binding post (6)；
Described binding post (6) includes baffle plate (61), quadrangular (62) that is that be connected as a single entity with baffle plate and that coordinate with the square hole on base, the wiring hole (63) that insulation annealed copper wire the end of a thread after holding peeling penetrates is set on quadrangular (62), the screw rod (64) being connected as a single entity with quadrangular, the nut coordinated with screw rod (65)；
nullDescribed gun body (3) includes gun barrel (31)，Rifle holds (32)，Trigger (33)，One end of described gun barrel (31) is with the external screw thread (311) screwed with insulating bar inner sleeve (12)，A pair is arranged laterally to perforation and longitudinal trigger hole (312) on the sidewall of gun barrel (31)，A bolt (34) is penetrated in perforation，Sheathed pulley (35) on bolt in gun barrel，Sheathed support (36) on the bolt of the outer both sides of gun barrel，Support (36) is fixed on gun barrel by nut (37)，Support (36) extends to gun barrel external screw thread direction and forms trigger housing (38)，The affixed rifle in support (36) lower section holds (32)，The upper hinged trigger (33) of trigger housing (38)，In one end of trigger (33) enters gun barrel through trigger hole (312) and lacing hole is set in this end end；
Fix after the lacing hole that the other end of described pull rope (4) penetrates on trigger after passing gun barrel after pulley (35) turns to.
A kind of extension type current transformer ratio test device the most according to claim 1, it is characterized in that: the upper plane of lower rhynchodaenm and plane in throat exist the angle of the lower surface existence 200 °-210 ° in the angle of 200 °-210 °, the lower surface of upper rhynchodaenm and maxillary portion.
A kind of extension type current transformer ratio test device the most according to claim 1, it is characterised in that: the upper surface of lower rhynchodaenm, the lower surface of upper rhynchodaenm arrange sawtooth tooth (235).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303342.XA CN105823936B (en) | 2016-05-10 | 2016-05-10 | A kind of extension type current transformer ratio test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303342.XA CN105823936B (en) | 2016-05-10 | 2016-05-10 | A kind of extension type current transformer ratio test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105823936A true CN105823936A (en) | 2016-08-03 |
| CN105823936B CN105823936B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610303342.XA Expired - Fee Related CN105823936B (en) | 2016-05-10 | 2016-05-10 | A kind of extension type current transformer ratio test device |
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| CN (1) | CN105823936B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841692A (en) * | 2016-12-16 | 2017-06-13 | 国网北京市电力公司 | Subtest component |
| CN107677871A (en) * | 2017-07-11 | 2018-02-09 | 国网浙江义乌市供电公司 | The tong-type ammeter of adjustable bands display |
| CN108594154A (en) * | 2018-04-12 | 2018-09-28 | 广东电网有限责任公司 | A kind of binding clip of verification transformer station direct current system leakage current mutual inductor |
| CN109188172A (en) * | 2018-09-18 | 2019-01-11 | 国家电网有限公司 | A kind of portable transformer wiring rifle |
| CN112666377A (en) * | 2020-12-31 | 2021-04-16 | 国网河南省电力公司南阳供电公司 | Cubical switchboard three-phase generating line current measuring device |
| CN114994516A (en) * | 2022-08-03 | 2022-09-02 | 深圳市速德瑞科技有限公司 | Portable waterproof circuit pulse signal detection device |
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| EP0000367A1 (en) * | 1977-07-14 | 1979-01-24 | HERM. SPRENGER GmbH & Co. KG | Safety hook |
| CN203365482U (en) * | 2013-07-25 | 2013-12-25 | 国家电网公司 | Live-line test rod for internal lightning arrester of gas insulated metallic enclosing switch |
| CN204008724U (en) * | 2014-08-04 | 2014-12-10 | 国家电网公司 | Converting equipment dielectric voltage withstand test connection bar |
| CN204065312U (en) * | 2014-08-05 | 2014-12-31 | 国家电网公司 | Bus current mutual inductor special no-load voltage ratio detector |
| CN105116172A (en) * | 2015-08-18 | 2015-12-02 | 国网山西省电力公司检修分公司 | A junction pole specially used for live tests of 35kV lighting arrester leakage currents |
| CN205608097U (en) * | 2016-05-10 | 2016-09-28 | 国网山东省电力公司莱州市供电公司 | Retractable current transformer transformation ratio testing arrangement |
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2016
- 2016-05-10 CN CN201610303342.XA patent/CN105823936B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0000367A1 (en) * | 1977-07-14 | 1979-01-24 | HERM. SPRENGER GmbH & Co. KG | Safety hook |
| CN203365482U (en) * | 2013-07-25 | 2013-12-25 | 国家电网公司 | Live-line test rod for internal lightning arrester of gas insulated metallic enclosing switch |
| CN204008724U (en) * | 2014-08-04 | 2014-12-10 | 国家电网公司 | Converting equipment dielectric voltage withstand test connection bar |
| CN204065312U (en) * | 2014-08-05 | 2014-12-31 | 国家电网公司 | Bus current mutual inductor special no-load voltage ratio detector |
| CN105116172A (en) * | 2015-08-18 | 2015-12-02 | 国网山西省电力公司检修分公司 | A junction pole specially used for live tests of 35kV lighting arrester leakage currents |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841692A (en) * | 2016-12-16 | 2017-06-13 | 国网北京市电力公司 | Subtest component |
| CN107677871A (en) * | 2017-07-11 | 2018-02-09 | 国网浙江义乌市供电公司 | The tong-type ammeter of adjustable bands display |
| CN107677871B (en) * | 2017-07-11 | 2020-09-18 | 国网浙江义乌市供电公司 | Adjustable clamp type ammeter with display |
| CN108594154A (en) * | 2018-04-12 | 2018-09-28 | 广东电网有限责任公司 | A kind of binding clip of verification transformer station direct current system leakage current mutual inductor |
| CN109188172A (en) * | 2018-09-18 | 2019-01-11 | 国家电网有限公司 | A kind of portable transformer wiring rifle |
| CN109188172B (en) * | 2018-09-18 | 2024-03-15 | 国家电网有限公司 | Portable transformer wire gun |
| CN112666377A (en) * | 2020-12-31 | 2021-04-16 | 国网河南省电力公司南阳供电公司 | Cubical switchboard three-phase generating line current measuring device |
| CN114994516A (en) * | 2022-08-03 | 2022-09-02 | 深圳市速德瑞科技有限公司 | Portable waterproof circuit pulse signal detection device |
| CN114994516B (en) * | 2022-08-03 | 2022-10-11 | 深圳市速德瑞科技有限公司 | Portable waterproof circuit pulse signal detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105823936B (en) | 2018-04-03 |
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