CN108427035A - A kind of resistivity detecting device for graphite electrode - Google Patents
A kind of resistivity detecting device for graphite electrode Download PDFInfo
- Publication number
- CN108427035A CN108427035A CN201810414792.5A CN201810414792A CN108427035A CN 108427035 A CN108427035 A CN 108427035A CN 201810414792 A CN201810414792 A CN 201810414792A CN 108427035 A CN108427035 A CN 108427035A
- Authority
- CN
- China
- Prior art keywords
- measuring pen
- ground terminal
- pen
- babinet
- spring
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a kind of resistivity detecting device for graphite electrode,Including babinet,The right side central position of the babinet is provided with rocking arm,It is connected with crank on the right side of the bottom end of the rocking arm,The outer surface of cupular part of the babinet is connected with dial,It is provided with line scan pickup coil side on the left of the dial,It is provided with ground terminal on the left of the line scan pickup coil side,The rear portion of the ground terminal is provided with measurement pointer,The front of the ground terminal is provided with shielding end,Further reduce the probability that human body is contacted with measuring pen nib,It ensure that the measurement safety of surveyor,After measurement,Unclamp detection line,It is acted on by the elastic force of spring,Detection line is withdrawn on kinking cylinder,Make entire detection line is regular to store together,And coiling apparatus is entirely attached on babinet,It will not thus worry that there is a situation where lose,Protection against electric shock insulation shell on the right side of measuring pen is just stuck on the shell of coiling apparatus,To keep entire coiling apparatus more carefully and neatly done.
Description
Technical field
The invention belongs to Resistivity testing correlative technology fields, and in particular to a kind of resistivity detecting device for graphite electrode.
Background technology
The modern life is maked rapid progress, and people's a moment also be unable to do without electricity.It there is Electrical Safety problem during electricity consumption,
One of the fundamental prerequisite of electrical equipment normal operation is exactly the insulation degree i.e. numerical value of insulation resistance of its insulating materials.When by
Heat and by the time of tide, insulating materials aging causes insulation resistance to reduce, so as to cause electrical equipment electric leakage or short circuit accident hair
It is raw, in order to avoid accident occurs, it is desirable to which the insulation resistance for often measuring various electrical equipments judges whether its insulation degree is full
Sufficient equipment needs.The measurement of conventional, electric-resistance usually have measured under low-voltage and high voltage under measure two ways, and insulation resistance
Since numerical value is generally higher（Generally mega-ohms）, measured value at low voltage cannot be reflected in work under high voltage condition
Real insulating resistance value.Megameter is also insulation resistance meter, it is to measure the most common instrument of insulation resistance, it is measuring insulation
High-voltage power supply is itself had when resistance, here it is the differences of it and measuring resistance instrument.Megameter is for measuring insulated electro
Resistance has not only facilitated but also reliable, but if improper use, it will bring unnecessary error to measurement, we must proper use of million
Europe table measures insulation resistance, and megger uses magnetoelectricity series Ratio-type measuring mechanism, also known as megameter, Mei Gebiao, insulated electro
Hinder table.Mainly it is made of three parts, first is high voltage direct current generator, and to generate a high direct voltage, second is measuring loop,
Third is display, and megger is common electrical instrument, is mainly used for measuring the insulating resistance value of electrical equipment and electric wiring.
Existing resistivity detecting device technology has the following problems：It is first when measuring resistivity to graphite electrode
It first to use rocking arm in megger to be powered on for megger, can simulate the resistance in virtual voltage is how many in this way, and in this detection
In the process, detection line is due to that with certain voltage, if if surveyor's maloperation, can cause the danger of electric shock, and detection line
Measurement finishes, when being stored, if not careful enough check accessory, easily there is a situation where losing, to delay next measurement.
Invention content
The purpose of the present invention is to provide a kind of resistivity detecting device for graphite electrode, with solve in above-mentioned background technology
When measuring resistivity to graphite electrode, first has to power on for megger using rocking arm in megger, practical electricity can be simulated in this way
Resistance in pressure is how many, and in this detection process, and detection line is due to certain voltage, if surveyor's maloperation
Words can cause the danger got an electric shock, and detection line when being stored, if not careful enough check accessory, is easily lost measurement finishes
The case where mistake, measures the problem of proposing to delay next time.
To achieve the above object, the present invention provides the following technical solutions：A kind of resistivity detecting device for graphite electrode, including
The right side central position of babinet, the babinet is provided with rocking arm, and crank is connected on the right side of the bottom end of the rocking arm, the babinet
Outer surface of cupular part is connected with dial, and line scan pickup coil side is provided on the left of the dial, is provided with ground on the left of the line scan pickup coil side
The rear portion at end, the ground terminal is provided with measurement pointer, and the front of the ground terminal is provided with shielding end, the front setting of the babinet
There is a coiling apparatus, upper install is equipped with knob in a side external surface of the coiling apparatus, the measurement pointer and shielding end,
End and measurement pointer are electrically connected.
Preferably, the coiling apparatus includes shielding end measuring pen, ground terminal measuring pen, line end measuring pen, protection against electric shock insulation
Shell, spring bracing, spring, kinking cylinder and spring card slot are provided with ground terminal measuring pen on the right side of the coiling apparatus, describedly
It is provided with shielding end measuring pen above the measuring pen of end, line end measuring pen, the screen are provided with below the ground terminal measuring pen
It covers and is provided with protection against electric shock insulation shell on the right side of end measuring pen, ground terminal measuring pen and line end measuring pen, the protection against electric shock insulation valve jacket
Shielding end measuring pen, ground terminal measuring pen and line end measuring pen are connect, kinking cylinder is provided on the left of the ground terminal measuring pen, it is described to twine
Spool is internally provided with spring, and the kinking jacket casing connects spring, and the upper and lower ends of the spring are provided with spring card slot, described
The upper and lower ends of kinking cylinder are connected with spring bracing.
Preferably, the shielding end, ground terminal and line scan pickup coil side are separately connected shielding end measuring pen by detection line, ground terminal measures
Pen and line end measuring pen.
Preferably, the equipment of the crank and rocking arm composition provides voltage for detection device, and the crank and rocking arm measure
When the rotating speed that keeps be rotating speed about 120r/min.
Preferably, the total weight of the babinet and coiling apparatus is 1KG.
Preferably, shielding end measuring pen, ground terminal measuring pen are identical with line end measuring pen size specification, material.
Compared with prior art, the beneficial effects of the invention are as follows：Before measurement, by required measuring pen from coiling apparatus
It therefrom extracts out, because being provided with spring and kinking cylinder in coiling apparatus, when pulling detection line, spring is acted on by power, is driven
Kinking cylinder rotates, and detection line can just extract out at this time, be provided with protection against electric shock insulation shell in the right end of measuring pen, further
The probability that human body is contacted with measuring pen nib is reduced, the measurement safety of surveyor is ensure that, after measurement, unclamps detection
Line is acted on by the elastic force of spring, and detection line is withdrawn on kinking cylinder, makes entire detection line is regular to store together, and
Coiling apparatus is entirely attached on babinet, will not thus worry that, there is a situation where losing, the protection against electric shock on the right side of measuring pen is exhausted
Edge shell is just stuck on the shell of coiling apparatus, to keep entire coiling apparatus 4 more carefully and neatly done.
Description of the drawings
Fig. 1 is the resistivity detecting device agent structure schematic diagram of the present invention；
Fig. 2 is the resistivity detecting device reel thread structure schematic diagram of the present invention；
Fig. 3 is the resistivity detecting device spring structure schematic diagram of the present invention；
Fig. 4 is the resistivity detecting device spring layout structure schematic diagram of the present invention；
In figure：1, babinet；2, crank；3, rocking arm；4, coiling apparatus；5, it shakes hands；6, detection line；7, end is shielded；8, ground terminal；9, it surveys
Measure pointer；10, line scan pickup coil side；11, dial；41, end measuring pen is shielded；42, ground terminal measuring pen；43, line end measuring pen；44, prevent
Electric shock insulation shell；45, spring bracing；46, spring；47, kinking cylinder；48, spring card slot.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of resistivity detecting device for graphite electrode, including case
The right side central position of body 1, babinet 1 is provided with rocking arm 3, and crank 2, the top appearance of babinet 1 are connected on the right side of the bottom end of rocking arm 3
Face is connected with dial 11, and the left side of dial 11 is provided with line scan pickup coil side 10, and the left side of line scan pickup coil side 10 is provided with ground terminal 8, ground terminal 8
Rear portion be provided with and measure pointer 9, the front of ground terminal 8 is provided with shielding end 7, and the front of babinet 1 is provided with coiling apparatus 4, rolls up
Upper install is equipped with knob 5 in one side external surface of line apparatus 4, measures pointer 9 and shielding end 7, ground terminal 8 and measures 9 electricity of pointer
Property connection.
In order to which detection line winding can be allowed neat, the present embodiment, it is preferred that coiling apparatus 4 include shielding end measuring pen 41,
Ground terminal measuring pen 42, line end measuring pen 43, protection against electric shock insulation shell 44, spring bracing 45, spring 46, kinking cylinder 47 and Spring Card
The right side of slot 48, coiling apparatus 4 is provided with ground terminal measuring pen 42, and the top of ground terminal measuring pen 42 is provided with shielding end measuring pen
41, the lower section of ground terminal measuring pen 42 is provided with line end measuring pen 43, and shielding end measuring pen 41, ground terminal measuring pen 42 and line end measure
The right side of pen 43 is provided with protection against electric shock insulation shell 44, the socket shielding of protection against electric shock insulation shell 44 end measuring pen 41, ground terminal measuring pen 42
The left side of line end measuring pen 43, ground terminal measuring pen 42 is provided with kinking cylinder 47, kinking cylinder 47 is internally provided with spring 46, twines
Spool 47 is socketed spring 46, and the upper and lower ends of spring 46 are provided with spring card slot 48, and the upper and lower ends of kinking cylinder 47 are connected with bullet
Spring supporting rack 45.
More accurate, the present embodiment is connected in order to allow, it is preferred that shielding end 7, ground terminal 8 and line scan pickup coil side 10 pass through inspection
Survey line 6 is separately connected shielding end measuring pen 41, ground terminal measuring pen 42 and line end measuring pen 43.
In order to device be allowed to be measured in analog voltage, the present embodiment, it is preferred that the equipment that crank 2 and rocking arm 3 form
Voltage is provided for detection device, the rotating speed that crank 2 and rocking arm 3 are kept when measuring is rotating speed about 120r/min.
In order to which device can be allowed to be more easy to take, the present embodiment, it is preferred that the total weight of babinet 1 and coiling apparatus 4 is 1KG.
It is measured without its dependent variable, the present embodiment to allow, it is preferred that shielding end measuring pen 41, ground terminal measuring pen 42
It is identical with 43 size specification of line end measuring pen, material.
The operation principle and process for using of the present invention：It, must be by equipment under test power supply before measurement after the present invention installs
Cut-out, and shorted to earth discharges, and equipment live must not be allowed to measure, to ensure the safety of the person and equipment, to that may feel
The equipment of high-voltage electricity should be gone out, it is necessary to after eliminating this possibility, can just measure, measured object surface will be cleaned, and contact is reduced
Resistance, it is ensured that megger should be carried out once open circuit and short-circuit test, check whether megger is good by the correctness of measurement result before measurement
Good, i.e., before megger does not connect measured object, swinging handle makes generator reach rated speed (120r/min), and observation pointer is
No to refer in position " ∞ " of scale, by binding post " line scan pickup coil side 10 and ground terminal 8 " short circuit, slow swinging handle, whether observation pointer
Refer to and show that megger is faulty if pointer cannot point to the position referred in " 0 " position of scale, used again after should overhauling, megger uses
When should be placed on steady, firm place, and far from big outer current conductors and external magnetic field, it is necessary to correct wiring, it is general on megger
There are three binding post, wherein line scan pickup coil side 10 is connected on the conductor part of measured object and the earth insulation, ground terminal 8 connect measured object shell or
Greatly, megger is placed in horizontal position when shaking survey, when rocking arm 3 rotates between its terminal mustn't short circuit, shaking crank 2 should be by slowly gradually
Soon, if finding, measuring the tested insulant of 9 nulling of pointer explanation may have occurred short circuit, at this moment cannot continue to shake crank 2, with
Anti- table interior loop fever damage, the resistance value for the dial 11 that the pointer 9 of record measurement at this time is directed toward, is measuring testee at this time
Length and cross-sectional area then equipment under test is discharged in the resistivity for calculating testee by formula ρ=RS/L,
It can (not be once that megger is put that the ground wire that charging method uses when being by measurement, which is taken off from megger with equipment under test short circuit,
Electricity), before measuring, required measuring pen is therefrom extracted out from coiling apparatus 4, because being provided with spring in coiling apparatus 4
46 and kinking cylinder 47, when pulling detection line 6, spring 46 is acted on by power, and kinking cylinder 47 is driven to rotate, and detection line 6 is rigid at this time
It can extract out well, be provided with protection against electric shock insulation shell 44 in the right end of measuring pen, further reduce human body and measuring pen pen
The probability of head contact after measurement, unclamps detection line 6, is acted on by the elastic force of spring 46, detection line 6 is withdrawn into kinking
On cylinder 47, and the protection against electric shock insulation shell 44 on the right side of measuring pen is just stuck on the shell of coiling apparatus 4, to make entirely to roll up
Line apparatus 4 is more carefully and neatly done.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of resistivity detecting device for graphite electrode, including babinet（1）, it is characterised in that：The babinet（1）Right side central
Position is provided with rocking arm（3）, the rocking arm（3）Bottom end on the right side of be connected with crank（2）, the babinet（1）Outer surface of cupular part
It is connected with dial（11）, the dial（11）Left side be provided with line scan pickup coil side（10）, the line scan pickup coil side（10）Left side set
It is equipped with ground terminal（8）, the ground terminal（8）Rear portion be provided with measurement pointer（9）, the ground terminal（8）Front be provided with shielding end
（7）, the babinet（1）Front be provided with coiling apparatus（4）, the coiling apparatus（4）A side external surface in upper install
It is equipped with knob（5）, the measurement pointer（9）With shielding end（7）, ground terminal（8）With measurement pointer（9）It is electrically connected；
The coiling apparatus（4）Including shielding end measuring pen（41）, ground terminal measuring pen（42）, line end measuring pen（43）, protection against electric shock
Insulation shell（44）, spring bracing（45）, spring（46）, kinking cylinder（47）And spring card slot（48）, the coiling apparatus（4）'s
Right side is provided with ground terminal measuring pen（42）, the ground terminal measuring pen（42）Top be provided with shielding end measuring pen（41）, described
Ground terminal measuring pen（42）Lower section be provided with line end measuring pen（43）, shielding end measuring pen（41）, ground terminal measuring pen（42）
With line end measuring pen（43）Right side be provided with protection against electric shock insulation shell（44）, the protection against electric shock insulation shell（44）Socket shielding end is surveyed
Measure pen（41）, ground terminal measuring pen（42）With line end measuring pen（43）, the ground terminal measuring pen（42）Left side be provided with kinking cylinder
（47）, the kinking cylinder（47）Be internally provided with spring（46）, the kinking cylinder（47）It is socketed spring（46）, the spring
（46）Upper and lower ends be provided with spring card slot（48）, the kinking cylinder（47）Upper and lower ends be connected with spring bracing
（45）；
The shielding end（7）, ground terminal（8）And line scan pickup coil side（10）Pass through detection line（6）It is separately connected shielding end measuring pen（41）,
Hold measuring pen（42）With line end measuring pen（43）.
2. a kind of resistivity detecting device for graphite electrode according to claim 1, it is characterised in that：The crank（2）With
Rocking arm（3）The equipment of composition provides voltage, the crank for detection device（2）And rocking arm（3）The rotating speed kept when measurement is to turn
Speed about 120r/min.
3. a kind of resistivity detecting device for graphite electrode according to claim 1, it is characterised in that：The babinet（1）With
Coiling apparatus（4）Total weight be 1KG.
4. a kind of resistivity detecting device for graphite electrode according to claim 1, it is characterised in that：The shielding end measures
Pen（41）, ground terminal measuring pen（42）With line end measuring pen（43）Size specification, material are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414792.5A CN108427035A (en) | 2018-05-03 | 2018-05-03 | A kind of resistivity detecting device for graphite electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414792.5A CN108427035A (en) | 2018-05-03 | 2018-05-03 | A kind of resistivity detecting device for graphite electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108427035A true CN108427035A (en) | 2018-08-21 |
Family
ID=63162252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810414792.5A Withdrawn CN108427035A (en) | 2018-05-03 | 2018-05-03 | A kind of resistivity detecting device for graphite electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108427035A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827847A (en) * | 2019-02-12 | 2019-05-31 | 合肥炭素有限责任公司 | A kind of graphite electrode nipple flexural strength detection device and its detection method |
-
2018
- 2018-05-03 CN CN201810414792.5A patent/CN108427035A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827847A (en) * | 2019-02-12 | 2019-05-31 | 合肥炭素有限责任公司 | A kind of graphite electrode nipple flexural strength detection device and its detection method |
| CN109827847B (en) * | 2019-02-12 | 2022-05-03 | 合肥炭素有限责任公司 | Device and method for detecting breaking strength of graphite electrode joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206412248U (en) | A kind of on-pole switch and overhead transmission line multifunction operation device | |
| CN206960588U (en) | A kind of on-off detector for short-circuited terminal row | |
| CN106841810A (en) | Insulator detector | |
| CN108427035A (en) | A kind of resistivity detecting device for graphite electrode | |
| CN108390422A (en) | A kind of wireless charging system with metallic foreign body detection | |
| CN108169702B (en) | Special insulating resistance meter verification platform and method for water-cooled generator | |
| CN207007941U (en) | A kind of insulating megger | |
| US2732491A (en) | Output | |
| CN103983831A (en) | Voltmeter and voltmeter pen special for protecting pressure plate | |
| CN204832408U (en) | Portable current transformer secondary circuit tester of working a telephone switchboard | |
| CN208140790U (en) | Convenient for the real-time electroscope of Fast Installation | |
| CN108398586A (en) | A kind of omnipotent meter apparatus of electric power overhaul | |
| CN103278729B (en) | Hi-pot test ground connection condition tester | |
| CN107843763A (en) | A kind of Multifunctional electroscope | |
| CN213633609U (en) | Insulation resistance tester | |
| CN208752112U (en) | A kind of distribution Zinc-Oxide Arrester acceptance checkout equipment | |
| CN106970325B (en) | Generator handbag insulation reverse wiring inspection device and method for high potential measurement | |
| CN203133177U (en) | Electric megohmmeter capable of resisting interference of strong electric field in power delivery line | |
| CN104714098A (en) | Insulation resistance testing device for power distribution system | |
| CN203433043U (en) | Megger improved structure | |
| CN201697972U (en) | Test pencil | |
| CN209656834U (en) | Wire bundle testing apparatus | |
| CN220207800U (en) | Front side measuring device of high-voltage switch equipment | |
| CN215728595U (en) | Semiconductor insulation testing device | |
| CN112067846B (en) | Portable accelerometer fault detector and detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180821 |
|
| WW01 | Invention patent application withdrawn after publication |