CN206400047U - A kind of Current Transmit polarity test device - Google Patents
A kind of Current Transmit polarity test device Download PDFInfo
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- CN206400047U CN206400047U CN201720052021.7U CN201720052021U CN206400047U CN 206400047 U CN206400047 U CN 206400047U CN 201720052021 U CN201720052021 U CN 201720052021U CN 206400047 U CN206400047 U CN 206400047U
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Abstract
The utility model discloses a kind of Current Transmit polarity test device, the CT polarity test devices include：Stretch reference test bar, negative pole of positive pole stretches reference test bar and polarity tester；The hook-shaped measuring head of the flexible reference test bar of positive pole is used to be articulated in CT primary sides end of incoming cables, and the hook-shaped measuring head of the flexible reference test bar of negative pole is used to be articulated in CT primary side leading-out terminals；Polarity tester includes：CT primary sides test module, meter test module, test switch and power module, test switch is used to control power module to turn on when opening, the power module of conducting applies electric current by CT primary sides test module to CT primary sides powers to meter test module simultaneously deflects the pointer ammeter pointer of meter test module, according to throw of pointer walking direction CT polarity.The utility model CT polarity test devices have simple, safe, accurate and efficient advantage, reduce live human cost and testing time, make whole test process more smooth and simple and easy to apply.
Description
Technical field
The utility model embodiment is related to CT polarity test technologies, more particularly to a kind of CT polarity test devices.
Background technology
The size of current great disparity in the circuit of generating, power transformation, transmission of electricity, distribution and electricity consumption, it is small to arrive several Wan An greatly to several peaces, be
It is easy to measure, protect and control, generally the different electric currents of circuit is converted into the unified electric current of comparison, current transformer (CT)
Installation can play current transformation and electrical isolation effect in the line.
Current Transmit includes CT primary sides end of incoming cables (P1), CT primary sides leading-out terminal (P2), CT secondary side first ends
(S1) and the end of CT secondary sides second (S2), four ports should be electrically connected with respective lines respectively, but may be gone out in wiring
Show the reversed possibility of S1 and S2 line polarity, it is therefore desirable to carry out CT polarity tests.In 110kV and above high-tension line power transmission
The preceding polarity test that carried out to its CT is to ensure the very important link that electric power safety is normally run.
" direct current actinobolia " test CT polarity is widely adopted with its simple, safe and accurate advantage at present.But the party
There are problems in actual applications in method：Device therefor is raised temporarily by tester in testing first：Battery, experiment
The preparation of the materials such as line, pointer general-purpose change, lap bars is wasted time and energy；There is random, unstability in building for its secondary device
Such as with operation inconvenience, usual experiment line is fixed with insulating tape with battery, and the drawing of pulling in test is easily destroyed connection
Stability, meanwhile, experiment line and the connection of CT both sides be not easy to operate；And librarian use is more in test process and there is cooperation
Problem：General test personnel need to be divided into two groups, and a group of people applies electric current in CT primary sides, and another group applies electricity in CT primary sides
The yawing moment of CT secondary side pointer multimeters is observed while stream.Obviously, there is time-consuming, expense in existing CT polarity tests process
The problem of power.
Utility model content
The utility model embodiment provides a kind of CT polarity test devices, to save testing time and reduction human cost.
The utility model embodiment provides a kind of CT polarity test devices, and the CT polarity test devices include：Positive pole is stretched
The flexible reference test bar of contracting reference test bar, negative pole and polarity tester；
The hook-shaped measuring head of the flexible reference test bar of the positive pole is used to be articulated in CT primary sides end of incoming cables, and the negative pole is flexible to be surveyed
The hook-shaped measuring head of bar is used to be articulated in CT primary side leading-out terminals；
The polarity tester includes：CT primary sides test module, meter test module, test switch and power module,
The power module is electrically connected with the CT primary sides test module, the meter test module and the test switch respectively,
The anode interface of the CT primary sides test module is used for by the flexible reference test bar electricity of primary side positive pole p-wire and the positive pole
Connection and its negative pole interface are used to electrically connect by primary side negative pole p-wire and the flexible reference test bar of the negative pole, the table
The current interface of meter test module is used to electrically connect with the first test pen by secondary side positive pole p-wire, first test pen
For electrically connected with CT secondary side first ends and its common interface be used for pass through secondary side negative pole p-wire and the second test pen
Electrical connection, second test pen is used to electrically connect with the end of CT secondary sides second；
The test switch is used to control the power module to turn on when opening, and the power module of conducting passes through institute
State CT primary sides test module and apply electric current to CT primary sides while being powered to the meter test module tests the meter
The pointer ammeter pointer deflection of module, according to throw of pointer walking direction CT polarity.
Further, the structure of the flexible reference test bar of the positive pole and the flexible reference test bar of the negative pole is telescopic type knot
Structure.
Further, it is all provided with the outer tube of the outer tube of the flexible reference test bar of the positive pole and the flexible reference test bar of the negative pole
It is equipped with insulation protective jacket.
Further, the maximum extension size of the flexible reference test bar of the positive pole is 4m~10m and minimum of contraction size is less than
Or equal to 1m, and, the maximum extension size of the flexible reference test bar of the negative pole is 4m~10m and minimum of contraction size is less than or waited
In 1m.
Further, intermediate plate is provided with the hook-shaped measuring head of the flexible reference test bar of the positive pole, the intermediate plate is used for institute
State the flexible reference test bar fixation of positive pole and be articulated in the CT primary sides end of incoming cables；On the hook-shaped measuring head of the flexible reference test bar of the negative pole
Intermediate plate is provided with, the intermediate plate, which is used to fix the flexible reference test bar of the negative pole, is articulated in the CT primary sides leading-out terminal.
Further, electrical verification contact is provided with the hook-shaped measuring head of the flexible reference test bar of the positive pole, and/or, it is described negative
Electrical verification contact is provided with the hook-shaped measuring head of extremely flexible reference test bar.
Further, the power module includes at least two pieces rechargeable lithium ion batteries, one of lithium ion
Battery is used as reserve battery.
Further, the test switch is arranged on the CT primary sides test module, the meter test module or institute
State on power module.
Further, in the CT primary sides test module, the meter test module and the power module at least
A kind of module is removably mounted in the polarity tester.
The CT polarity test devices that the utility model embodiment is provided are a kind of simple high-voltage circuit CT polarity testers, can
To provide the need of work of test overall process, and the CT polarity test devices can avoid needing multiple testers in test process
The problem of mutual cooperation, make whole test process easily and efficient.The CT polarity test devices are tested based on " direct current actinobolia "
CT polarity, with simple, safe, accurate and efficient advantage, effectively solves test material in test process and prepares and built
Problem present in journey, reduces Field Force's service condition, improves live CT polarity tests efficiency, effectively saves scene
Time, make whole test process more smooth, simple and easy to apply.Compared with prior art, CT polarity test devices have just
The property taken, reduces live human cost and testing time.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art does one and simply introduced, it should be apparent that, drawings in the following description are
Some embodiments of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram for the CT polarity test devices that the utility model embodiment is provided；
Fig. 2A~Fig. 2 B are the schematic diagrames for the flexible reference test bar that the utility model embodiment is provided；
Fig. 3 is the schematic diagram of the hook-shaped measuring head for the flexible reference test bar that the utility model embodiment is provided.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, implement hereinafter with reference to the utility model
Accompanying drawing in example, clearly and completely describes the technical solution of the utility model, it is clear that described implementation by embodiment
Example is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, this area
The every other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to the utility model
The scope of protection.
The utility model embodiment provides a kind of CT polarity test devices, the CT polarity test devices that the present embodiment is provided
For carrying out polarity test to its CT before 110kV and above high-tension line power transmission.The CT poles that the present embodiment as shown in Figure 1 is provided
System safety testing device includes：Stretch reference test bar 110, negative pole of positive pole stretches reference test bar 120 and polarity tester 200.
The hook-shaped measuring head 111 of the flexible reference test bar 110 of positive pole is used to be articulated in CT primary sides end of incoming cables, the flexible test of negative pole
The hook-shaped measuring head 121 of bar 120 is used to be articulated in CT primary side leading-out terminals；Polarity tester 200 includes：Side test mould of CT
Block 210, meter test module 220, test switch 230 and power module 240, power module 240 respectively with side test of CT
Module 210, meter test module 220 and test switch 230 are electrically connected, and the anode interface (+) of CT primary sides test module 210 is used
Electrically connected and its negative pole interface (-) is used to pass through in by primary side positive pole p-wire 211 and the positive pole reference test bar 110 that stretches
Primary side negative pole p-wire 212 is electrically connected with the flexible reference test bar 120 of negative pole, and the current interface (mA) of meter test module 220 is used
Electrically connected in by secondary side positive pole p-wire 223 with the first test pen 221, the first test pen 221 is used for and CT secondary sides the
One end is electrically connected and its common interface (com) is used to be electrically connected with the second test pen 222 by secondary side negative pole p-wire 224
Connect, the second test pen 222 is used to electrically connect with the end of CT secondary sides second；Test switch 230 is used to control power supply mould when opening
Block 240 is turned on, and the power module 240 of conducting applies electric current simultaneously to table by CT primary sides test module 210 to CT primary sides
The meter power supply of test module 220 makes the throw of pointer of pointer ammeter 225 of meter test module 220, is sentenced according to throw of pointer direction
Disconnected CT polarity.
As described above, CT primary sides test module 210 and power module 240 are electrically connected, CT primary sides test module 210
Positive pole is electrically connected with the positive pole of power module 240, the negative pole of CT primary sides test module 210 and the negative electricity of power module 240
Connection, the positive pole of specific CT primary sides test module 210 passes through a primary side p-wire and the positive pole of power module 240 is electric
Connection, the negative pole of CT primary sides test module 210 is electrically connected by the negative pole of another primary side p-wire and power module 240
Connect；Stretched respectively with positive pole reference test bar 110 and negative pole of the both positive and negative polarity interface of CT primary sides test module 210 stretches reference test bar 120
Electrical connection.It should be noted that primary side positive pole p-wire 211 is identical with the construction of primary side negative pole p-wire 212, it is one
Secondary side test line, is only nominally making a distinction, and can also be distinguished embodiment and be easy to measurement circuit to connect in appearance, such as once
Side positive pole p-wire 211 is different with the appearance color of primary side negative pole p-wire 212, preferably primary side positive pole p-wire 211
Appearance color is red, and the appearance color of primary side negative pole p-wire 212 is yellow.
The power module 240 of conducting can power to CT primary sides test module 210, that is, the power module 240 turned on to
CT primary sides test module 210 is powered and electric current is transmitted by primary side positive pole p-wire 211 and primary side negative pole p-wire 212
To the flexible reference test bar 110 of positive pole and the flexible reference test bar 120 of negative pole.Optional power module 240 is passed to CT primary sides test module 210
Defeated voltage magnitude is 9V, it will be understood by those skilled in the art that the high pressure level of high-tension line is different, then power module is exported
Voltage magnitude it is different.
Pointer ammeter 225, mA interfaces and com interfaces, meter test module 220 are provided with meter test module 220
Electrically connected with power module 240；The mA interface and com interfaces of meter test module 220 are also electrically connected the first test pen 221
With the second test pen 222；The first test pen 221 is electrically connected with CT secondary sides first end (S1) when measurement circuit is connected, and second surveys
Examination pen 222 is electrically connected with the end of CT secondary sides second (S2).It should be noted that secondary side positive pole p-wire 223 and secondary side are negative
The construction of pole p-wire 224 is identical, is secondary side p-wire, is only nominally making a distinction, and can also be distinguished and is embodied in
It is easy to measurement circuit to connect in appearance, such as the appearance color of secondary side positive pole p-wire 223 and secondary side negative pole p-wire 224 is not
Together, preferably the appearance color of secondary side positive pole p-wire 223 is red, and the appearance color of secondary side negative pole p-wire 224 is black
Color.Connected for the ease of measurement circuit, the appearance color of also optional first test pen 221 is outside red, the second test pen 222
Sight color is black.
The power module 240 of conducting can be easy to meter test module 220 to CT bis- times to the power supply of meter test module 220
Side S1 ends and CT secondary side S2 ends carry out CT polarity tests.In actual applications, optional meter test module 220 is pointer-type ten thousand
With table, corresponding first test pen 221 is the red test pencil of pointer multimeter, and the second test pen 222 is pointer multimeter
Black meter pen.
Test switch 230 and power module 240 are electrically connected, circuit turn-on or disconnection for controlling power module 240, tool
The test switch 230 of body is when opening for controlling the both positive and negative polarity of power module 240 to turn on and controlling power supply mould when closed
The both positive and negative polarity of block 240 disconnects.Optional test switch 230 is knob switch in the present embodiment, at least including reset options and
It is that test switch 230 is closed to test and reset options are pointed under option, test 230 original states of switch, test switch
Then testing switch 230 during 230 rotations to sensing test option and opening can make CT polarity test devices carry out CT polarity tests.
Optional test switch 230 is arranged in CT primary sides test module 210 in the present embodiment.It is optional in other alternative embodiments to survey
It is push switch that runin, which is closed, and switch is tested when pressing and is closed, and test switch is in open mode when upspringing, at this
The structure and switch form of test switch are not limited in utility model, any one can realize that the switch of test switching function is equal
Fall into protection domain of the present utility model.
Positive pole is stretched in the schematic diagram of the flexible reference test bar provided as shown in Figure 2 A for the utility model embodiment, the present embodiment
Contracting reference test bar 110 is identical with the structure of the flexible reference test bar 120 of negative pole, only can nominally divide into the flexible reference test bar 110 of positive pole
With the flexible reference test bar 120 of negative pole, the reference test bar 100 that stretched shown in Fig. 2A is the flexible reference test bar 110 of positive pole and the flexible reference test bar of negative pole
Flexible reference test bar 100 under 120 structure, specially extended configuration.Flexible reference test bar 100 is formed using conductive material, is such as schemed
The hook-shaped measuring head 101 of flexible reference test bar 100 can be linked up with shown in 2A realizes electrical connection, specific p-wire on CT primary sides
When road is connected, the hook-shaped measuring head 101 of a flexible reference test bar 100 can be articulated in CT primary sides end of incoming cables (P1) by tester to be made
The flexible reference test bar 110 of positive pole is electrically connected with CT primary side P1 ends, and the hook-shaped measuring head 101 of another flexible reference test bar 100 is hung
Being connected on CT primary sides leading-out terminal (P2) makes the flexible reference test bar 120 of negative pole be electrically connected with CT primary side P2 ends.
Flexible reference test bar 100 is extensible and contractile reference test bar.Reference test bar 100 is stretched as shown in Figure 2 A to stretch completely
Exhibition state, high-tension line position is generally higher, and the position of wherein CT primary sides is also higher accordingly, and tester can be by stretching
Flexible reference test bar 100 makes flexible reference test bar 100 reach required length, and then is conveniently articulated in flexible reference test bar 100
CT primary sides.The reference test bar 100 that stretches as shown in Figure 2 B is fully collapsed condition, and tester can be by shrinking flexible reference test bar
100 make the flexible reduction of reference test bar 100 length, be easy to by flexible reference test bar 100 be placed in CT polarity test devices with take with,
Make CT polarity test devices turn into it is a set of can working site with take with test device.Need explanation when, in order to just
In shrinking and stretching flexible reference test bar 100, the hook-shaped measuring head 101 for the reference test bar 100 that stretched during optional fully collapsed condition is local
Shrink or not contracted to inside the body of rod.
Flexible reference test bar 100 is also electrically connected with polarity tester 200, specifically, the circuit set on flexible reference test bar 100
Interface 102 is electrically connected with primary side p-wire, the CT primary sides test module 210 of primary side p-wire and polarity tester 200
Electrical connection.Line interface 102 is arranged on the bar wall of flexible reference test bar 110 in the present embodiment, in other alternative embodiments
Line interface can also be arranged on the bar bottom of flexible reference test bar, realize the electrical connection of flexible reference test bar and primary side p-wire.
It will be understood by those skilled in the art that designer can set the line interface position on flexible reference test bar according to actual conditions,
Without concrete restriction in the utility model；For example primary side p-wire may pass through flexible test in other alternative embodiments
The body of rod of bar is directly fixed and electrically connected with hook-shaped measuring head by bolt, and now optional flexible reference test bar is isolation material.
It should be noted that stretch reference test bar 110 and negative pole of positive pole stretches the structure phase of reference test bar 120 in the present embodiment
Together, therefore tester is stretched using two flexible reference test bars 100 as shown in Figure 2 A as stretch reference test bar 110 and negative pole of positive pole
Contracting reference test bar 120, and CT primary side P1 ends and P2 ends are articulated in respectively.And surveyed in practical application for the ease of follow-up overlap joint polarity
Instrument 200 is tried, the optional flexible reference test bar 100 that two appearance colors are different stretches as the flexible reference test bar 110 of positive pole and negative pole
Reference test bar 120, is easy to the both positive and negative polarity with polarity tester 200 to electrically connect.The outward appearance face of the flexible reference test bar 110 of such as optional positive pole
Color is red, and the appearance color of the flexible reference test bar 120 of negative pole is black, accordingly the flexible electricity of reference test bar 110 of also optional and positive pole
The appearance color of the primary side positive pole p-wire of connection is red, the primary side negative pole electrically connected with the flexible reference test bar 120 of negative pole
The appearance color of p-wire is yellow.
In summary, the test process of CT polarity test devices is：
CT polarity test devices are quickly completed and are connected completion with CT primary sides and CT secondary sides by A testers
Afterwards, directly opening test switch 230 turns on power module 240, and the power module 240 of conducting gives CT primary side test modules
210 and meter test module 220 power；
CT primary sides test module 210 stretches reference test bar 120 to CT primary sides by the flexible reference test bar 110 of positive pole and negative pole
Apply electric current, while the pointer of the pointer ammeter 225 of meter test module 220 deflects；
The throw of pointer direction of A testers observation pointer ammeter 225, if the pointer positively biased of pointer ammeter 225,
The polarity at CT secondary side S1 ends and S2 ends is correct, if the pointer of pointer ammeter 225 is reverse-biased, CT secondary side S1 ends and S2 ends
Polarity is anti-, and A testers exchange the wiring at CT secondary side S1 ends and S2 ends, and CT polarity tests are completed.
Exemplary, optional positive pole stretches reference test bar 110 in the present embodiment as shown in Figure 2 A and negative pole stretches reference test bar 120
Structure be telescopic type structure；When connecting CT primary sides, tester stretches the flexible reference test bar 110 of positive pole and negative pole is stretched
Contracting reference test bar 120 reaches required length, is easy to be articulated on the CT primary sides of the higher high-tension line in position.Can at other
Select in embodiment, the structure of the flexible reference test bar of positive pole and the flexible reference test bar of negative pole is folding bar type structure, people in the art
It is appreciated that positive pole stretches, the structure of reference test bar and the flexible reference test bar of negative pole has a variety of to member, including but not limited to telescopic type
With fold rod-type, without concrete restriction in the utility model.
It should be noted that telescopic type stretches, the casing diameter of reference test bar 100 is reduced successively, for example as shown in Figure 2 A
The diameter of hand-holdable outermost outer tube is chosen as 34mm, a diameter of 31mm of each sleeve pipe successively, 28mm, 25mm,
22mm, 19mm and 17mm, and a diameter of 10mm of plug connector of the hook-shaped measuring head 101 and a diameter of 7mm in its plug division, it is thus real
The electric current transmission of flexible reference test bar 100 is showed.The sleeve pipe of reference test bar it will be understood by those skilled in the art that telescopic type stretches
Quantity and casing diameter size can voluntarily be set according to the actual requirements, fold folding rod quantity and the folding of the flexible reference test bar of rod-type
Shank diameter size can voluntarily be set according to the actual requirements, without concrete restriction in the utility model.
Exemplary, the stretch outer tube and negative pole of reference test bar 110 of optional positive pole stretches reference test bar 120 in the present embodiment
Insulation protective jacket is provided with outer tube.As shown in Figure 2 A insulation protective jacket is provided with the outer tube of flexible reference test bar 100
130.It should be noted that outer tube is the outermost sleeve pipe of flexible reference test bar 100, it is also the hand-held region of tester.It is high
The dangerous property of CT polarity tests on line ball road, in order to avoid electric shock phenomenon occurs in connection procedure and test process, positive pole is stretched
Insulation protective jacket 130 is provided with the outer tube of the flexible reference test bar 120 of the outer tube and negative pole of contracting reference test bar 110, it is to avoid surveyed
Examination personnel get an electric shock.It will be understood by those skilled in the art that designer can be voluntarily in flexible test on the basis of safety is ensured
Insulation protective jacket is set on the bar wall of bar, for example, insulation protection is set in the regional area of at least one sleeve pipe of flexible reference test bar
Set.
Exemplary, the maximum extension size of the flexible reference test bar 110 of optional positive pole is 4m~10m and minimum in the present embodiment
Shrink size and be less than or equal to 1m, and, the maximum extension size of the flexible reference test bar 120 of negative pole is 4m~10m and minimum of contraction
Size is less than or equal to 1m.The position of high-tension line is higher, and the safe altitude of the high-tension line of different brackets voltage magnitude is usual
Difference, therefore the maximum extension size of flexible reference test bar 100 is more than or equal to 4m and less than or equal to 10m, disclosure satisfy that existing
Different brackets high-tension line.The voltage magnitude of existing highest ranking high-tension line is 750KV, is generally arranged at and is above the ground level 8m
Place is put, therefore the maximum extension size of the preferably flexible reference test bar 110 of positive pole and the flexible reference test bar 120 of negative pole is 8m.For the ease of
Flexible reference test bar 100 is placed in CT polarity test devices, the portability of CT polarity test devices, optional flexible test is realized
The minimum of contraction size of bar 100 is less than or equal to 1m, it is to avoid size is larger to cause CT polarity test devices excessive without portable.This
Art personnel are appreciated that the maximum extension that designed, designed can be needed to stretch reference test bar during designer's design according to test
Size and minimum of contraction size, such as maximum extension size are less than 4m or more than 10m.
Exemplary, intermediate plate is provided with the hook-shaped measuring head 111 of the flexible reference test bar 110 of optional positive pole, intermediate plate is used for will
The flexible reference test bar 110 of positive pole, which is fixed, is articulated in CT primary sides end of incoming cables；On the hook-shaped measuring head 121 of the flexible reference test bar 120 of negative pole
Intermediate plate is provided with, intermediate plate, which is used to fix the flexible reference test bar 120 of negative pole, is articulated in CT primary side leading-out terminals.It is flexible as shown in Figure 3
Intermediate plate 103 is provided with the hook-shaped measuring head 101 of reference test bar 100, intermediate plate 103 is elastomeric material, then by flexible reference test bar 100
When being articulated in CT primary sides, intermediate plate 103 can clamp CT primary sides, prevent flexible reference test bar 100 from being come off from CT primary sides, improve
Measurement circuit connective stability.
Exemplary, electrical verification contact is provided with the hook-shaped measuring head 111 of the flexible reference test bar 110 of optional positive pole, and/or,
Electrical verification contact is provided with the hook-shaped measuring head 111 of the flexible reference test bar 120 of negative pole.Flexible reference test bar 100 is hook-shaped as shown in Figure 3
Electrical verification contact 104 is provided with measuring head 101, CT polarity tests must be carried out under high-tension line powering-off state, therefore in test
Electro-detection is carried out to CT primary sides using electrical verification contact 104 before connection, when it is determined that high-tension line without electricity after can carry out it is follow-up
Test operation, it is ensured that measurement circuit connects the security with CT polarity tests.It will be understood by those skilled in the art that electrical verification is touched
The electrical verification principle and operating procedure of head are identical with conventional electroscope.
Exemplary, optional power module 240 includes at least two pieces rechargeable lithium ion batteries in the present embodiment, wherein one
Block lithium ion battery is used as reserve battery.Main battery does not have replaceable upper reserve battery during electricity to make it as main battery, keeps standby
The electricity of battery can avoid in test process electricity from using up the problem of can not continuing test, and power module 240 can also be
CT polarity test devices are powered while charging.It should be noted that power module 240 has positive and negative electrode interface,
It is easy to electrically connect with other modules.
Exemplary, in other alternative embodiments, test switch can be arranged on CT primary sides test module, meter and survey
On die trial block or power module.
Exemplary, in other alternative embodiments, in CT primary sides test module, meter test module and power module
At least one module be removably mounted in polarity tester；Such as CT primary sides test module and meter test module phase
Mutual independent but shared power module, and meter test module and power module are integrated.CT primary sides in the present embodiment
Test module 210, meter test module 220 and power module 240 integrate composition polarity tester 200.
The CT polarity test devices that the utility model embodiment is provided are a kind of simple high-voltage circuit CT polarity testers, can
To provide the need of work of test overall process, and the CT polarity test devices can avoid needing multiple testers in test process
The problem of mutual cooperation, make whole test process easily and efficient.The CT polarity test devices are tested based on " direct current actinobolia "
CT polarity, with simple, safe, accurate and efficient advantage, effectively solves test material in test process and prepares and built
Problem present in journey, reduces Field Force's service condition, improves live CT polarity tests efficiency, effectively saves scene
Time, make whole test process more smooth, simple and easy to apply.Compared with prior art, CT polarity test devices have just
The property taken, reduces live human cost and testing time.
Note, above are only preferred embodiment of the present utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carried out for a person skilled in the art various bright
Aobvious change, readjust and substitute without departing from protection domain of the present utility model.Therefore, although pass through above example
The utility model is described in further detail, but the utility model is not limited only to above example, is not departing from
In the case that the utility model is conceived, other more equivalent embodiments can also be included, and scope of the present utility model is by appended
Right determine.
Claims (9)
1. a kind of Current Transmit polarity test device, it is characterised in that including：Positive pole is stretched, and reference test bar, negative pole are flexible to be surveyed
Bar and polarity tester；
The stretch hook-shaped measuring head of reference test bar of the positive pole is used to be articulated in CT primary sides end of incoming cables, and the negative pole stretches reference test bar
Hook-shaped measuring head be used for be articulated in CT primary side leading-out terminals；
The polarity tester includes：CT primary sides test module, meter test module, test switch and power module, it is described
Power module is electrically connected with the CT primary sides test module, the meter test module and the test switch respectively, described
The anode interface of CT primary side test modules is used to electrically connecting by the flexible reference test bar of primary side positive pole p-wire and the positive pole,
And its negative pole interface is used to electrically connect by primary side negative pole p-wire and the flexible reference test bar of the negative pole, the meter test
The current interface of module be used for electrically connected by secondary side positive pole p-wire with the first test pen, first test pen for
CT secondary sides first end is electrically connected and its common interface is used to be electrically connected with the second test pen by secondary side negative pole p-wire
Connect, second test pen is used to electrically connect with the end of CT secondary sides second；
The test switch is used to control the power module to turn on when opening, and the power module of conducting passes through the CT
Primary side test module applies electric current to CT primary sides powers to the meter test module simultaneously makes the meter test module
Pointer ammeter pointer deflection, according to throw of pointer walking direction CT polarity.
2. CT polarity test devices according to claim 1, it is characterised in that the positive pole stretches reference test bar and described negative
The structure of extremely flexible reference test bar is telescopic type structure.
3. CT polarity test devices according to claim 1 or 2, it is characterised in that outside the flexible reference test bar of the positive pole
Insulation protective jacket is provided with the outer tube of sleeve pipe and the flexible reference test bar of the negative pole.
4. CT polarity test devices according to claim 1, it is characterised in that the maximum of the flexible reference test bar of the positive pole is stretched
Size is opened up for 4m~10m and minimum of contraction size is less than or equal to 1m, and, the maximum extension chi of the flexible reference test bar of the negative pole
Very little is 4m~10m and minimum of contraction size is less than or equal to 1m.
5. CT polarity test devices according to claim 1, it is characterised in that the hook-shaped survey of the flexible reference test bar of the positive pole
Intermediate plate is provided with examination head, the intermediate plate, which is used to fix the flexible reference test bar of the positive pole, is articulated in the CT primary sides inlet wire
End；Intermediate plate is provided with the hook-shaped measuring head of the flexible reference test bar of the negative pole, the intermediate plate is used for the flexible test of the negative pole
Bar is fixed and is articulated in the CT primary sides leading-out terminal.
6. CT polarity test devices according to claim 1, it is characterised in that the hook-shaped survey of the flexible reference test bar of the positive pole
Electrical verification contact is provided with examination head, and/or, it is provided with electrical verification contact on the hook-shaped measuring head of the flexible reference test bar of the negative pole.
7. CT polarity test devices according to claim 1, it is characterised in that the power module fills including at least two pieces
Electric-type lithium ion battery, one of lithium ion battery is used as reserve battery.
8. CT polarity test devices according to claim 1, it is characterised in that the test switch is arranged on the CT mono-
On secondary side test module, the meter test module or the power module.
9. CT polarity test devices according to claim 8, it is characterised in that the CT primary sides test module, described
At least one of meter test module and the power module module are removably mounted in the polarity tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720052021.7U CN206400047U (en) | 2017-01-17 | 2017-01-17 | A kind of Current Transmit polarity test device |
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| CN201720052021.7U CN206400047U (en) | 2017-01-17 | 2017-01-17 | A kind of Current Transmit polarity test device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576885A (en) * | 2017-08-23 | 2018-01-12 | 国网山东省电力公司淄博供电公司 | Device for detecting polarity for metering transformer secondary circuit |
| CN107797022A (en) * | 2017-12-12 | 2018-03-13 | 国网山东省电力公司淄博供电公司 | Body of rod automatic retracting type mutual inductor polarity detection means |
| CN108089091A (en) * | 2017-12-20 | 2018-05-29 | 国家电网公司 | A kind of secondary wiring of current mutual inductor polarity measurement device and measuring instrument |
| CN109633514A (en) * | 2018-12-29 | 2019-04-16 | 国网山东省电力公司淄博供电公司 | A kind of active defense formula electric power mutual-inductor polarity tester |
| CN110389280A (en) * | 2019-08-23 | 2019-10-29 | 广东电网有限责任公司 | A kind of current transformer polarity measurement device |
| CN111007305A (en) * | 2019-12-05 | 2020-04-14 | 国网黑龙江省电力有限公司绥化供电公司 | Charging and battery type dual-purpose high-voltage electroscope |
| CN114325507A (en) * | 2022-03-17 | 2022-04-12 | 国网山东省电力公司安丘市供电公司 | CT polarity test device |
-
2017
- 2017-01-17 CN CN201720052021.7U patent/CN206400047U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576885A (en) * | 2017-08-23 | 2018-01-12 | 国网山东省电力公司淄博供电公司 | Device for detecting polarity for metering transformer secondary circuit |
| CN107576885B (en) * | 2017-08-23 | 2020-01-07 | 国网山东省电力公司淄博供电公司 | Polarity detection device for secondary circuit of metering transformer |
| CN107797022A (en) * | 2017-12-12 | 2018-03-13 | 国网山东省电力公司淄博供电公司 | Body of rod automatic retracting type mutual inductor polarity detection means |
| CN108089091A (en) * | 2017-12-20 | 2018-05-29 | 国家电网公司 | A kind of secondary wiring of current mutual inductor polarity measurement device and measuring instrument |
| CN109633514A (en) * | 2018-12-29 | 2019-04-16 | 国网山东省电力公司淄博供电公司 | A kind of active defense formula electric power mutual-inductor polarity tester |
| CN109633514B (en) * | 2018-12-29 | 2021-04-06 | 国网山东省电力公司淄博供电公司 | Active protection type polarity tester for power transformer |
| CN110389280A (en) * | 2019-08-23 | 2019-10-29 | 广东电网有限责任公司 | A kind of current transformer polarity measurement device |
| CN111007305A (en) * | 2019-12-05 | 2020-04-14 | 国网黑龙江省电力有限公司绥化供电公司 | Charging and battery type dual-purpose high-voltage electroscope |
| CN114325507A (en) * | 2022-03-17 | 2022-04-12 | 国网山东省电力公司安丘市供电公司 | CT polarity test device |
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