CN201666922U - High-voltage nuclear phase pen - Google Patents

High-voltage nuclear phase pen Download PDF

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Publication number
CN201666922U
CN201666922U CN2010201254407U CN201020125440U CN201666922U CN 201666922 U CN201666922 U CN 201666922U CN 2010201254407 U CN2010201254407 U CN 2010201254407U CN 201020125440 U CN201020125440 U CN 201020125440U CN 201666922 U CN201666922 U CN 201666922U
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CN
China
Prior art keywords
resistance
dropping resistor
links
voltage
diode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010201254407U
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Chinese (zh)
Inventor
程柏超
李和平
李德家
张晓峰
郑运洪
吴先平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China First Metallurgical Group Co Ltd
Original Assignee
China First Metallurgical Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN2010201254407U priority Critical patent/CN201666922U/en
Application granted granted Critical
Publication of CN201666922U publication Critical patent/CN201666922U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a safe and reliable high-voltage nuclear phase pen which is characterized by comprising a first measuring probe, a second measuring probe, a first voltage-dropping resistor, a second voltage-dropping resistor, an insulating operation handle, a voltage indicator meter and a measuring lead wire, wherein the first measuring probe is connected with one end of the first voltage-dropping resistor; the other end of the first voltage-dropping resistor is connected with the insulating operation handle and one end of the measuring lead wire; the second measuring probe is connected with one end of the second voltage-dropping resistor; the other end of the second voltage-dropping resistor is connected with the insulating operation handle and the voltage indicator meter; the voltage indicator meter is fixed on the insulating operation handle and connected with the other end of the measuring lead wire; and a shell is grounded. In the utility model, the two-side resistor voltage reduction leads the measuring lead wire and the indicator meter to be arranged in a low-voltage state and be safe and reliable; all elements are matched flexibly and conveniently operated; and the voltage indicator meter is fixed on a measuring rod, thus having stable and visual readings.

Description

High pressure nuclear phase pen
Technical field
The utility model relates to that a kind of high pressure phase place is checked and the device of voltage measurement.
Background technology
In the high-tension electricity distribution system, awarding of multiple power supplies send electricity must carry out the checking work of phase place.Traditional phase place checking method generally has two kinds in voltage transformer (VT) and high voltage electroscope, the former equipment heaviness, and the latter relies on faint aura indication, occurs erroneous judgement easily.Second generation phasing tester adopts carbon resister to make, and temperature influence is big during measurement, and precision is low, and indicating gauge carrying high pressure, the security deficiency.Present this commercially available series products, pattern is varied, but no matter is electronics display type, sound and light alarm formula or pointer-type, and the ubiquity cost performance is low, unreasonable structure, security deficiency, the shortcoming of easy care not.
The utility model content
The technical problems to be solved in the utility model is: provide a kind of safe and reliable high pressure nuclear phase pen at above-mentioned the deficiencies in the prior art, with checking and voltage measurement of phase place between the following high pressure power supply-distribution system of realization 10kV multiple-way supply power supply.
The utility model is to solve the problems of the technologies described above the technical scheme of being taked to be: a kind of high pressure nuclear phase pen is characterized in that: it comprises first measuring sonde, second measuring sonde, first dropping resistor, second dropping resistor, insulation operating grip, voltage indicating gauge and measures lead; First measuring sonde connects with first dropping resistor, one end, and the other end of first dropping resistor links with one that measures lead with the insulation operating grip; Second measuring sonde connects with second dropping resistor, one end, and the other end of second dropping resistor links with insulation operating grip and voltage indicating gauge; The voltage indicating gauge is fixed on the insulation operating grip, connects with the other end of measuring lead, and the earthing of casing.
Press such scheme, the internal circuit configuration of described voltage indicating gauge is: an end that connects with second dropping resistor is made as the C end, and the C end links to each other with an end of the 6th resistance with negative pole, the anodal of second diode of first diode respectively; The positive pole of first diode links to each other with an end of first electric capacity, negative pole, the 4th resistance and the negative pole of the 3rd diode of microampere gauge outfit respectively; The other end of first electric capacity links to each other with an end of the 7th resistance with the back anodal in parallel of microampere gauge outfit, and the other end of the 7th resistance links to each other with an end of the 8th resistance; The other end of the 8th resistance links to each other with the negative pole of second diode, the common port of potentiometer, the sliding end of potentiometer and the negative pole of the 4th diode respectively; An end that connects with first dropping resistor is made as the D end, and the D end links to each other with an end of the 5th resistance with negative pole, the anodal of the 4th diode of the 3rd diode respectively; The other end of the 4th resistance links to each other with an end of the 3rd resistance, and the other end of the 3rd resistance links to each other with the working end of potentiometer; The other end of the 5th resistance connects back ground connection with the other end of the 6th resistance.
Press such scheme, described the 5th resistance is 250k Ω, and the 6th resistance is 250k Ω, and the first dropping resistor resistance is 50M Ω, the second dropping resistor resistance is 50M Ω, and the resistance of the 7th resistance, the 8th resistance, the 3rd resistance and the 4th resistance is decided according to the parameter of microampere gauge outfit.
Press such scheme, it is that 3k Ω, maximum current are the microampere gauge outfit of 50 μ A that described microampere gauge outfit is selected internal resistance for use, and the 7th resistance is 820 Ω, and the 8th resistance is 180 Ω, and the 3rd resistance is 2k Ω, and the 4th resistance is 6.2k Ω.
Press such scheme, described potentiometer maximum value is 1k Ω.
Principle of work of the present utility model is: according to Ohm law I=U/R, grade according to system voltage, the certain resistance of configuration on two measuring sondes, the electric current that makes whole detection loop is a microampere order, because electric current and voltage are linear relationships, so the numerical value that the microampere gauge outfit shows promptly reflects measured magnitude of voltage; Control loop and apparatus structure design make slotted line, microampere meter be in low-pressure state, realize security, accuracy and the reliability of test operation.
The beneficial effects of the utility model are: 1, the step-down of bilateral resistance makes measurement lead and indicating instrument be in low-pressure state, and is safe and reliable; 2, each element collocation is flexible, easy to operate; 3, the voltage indicating gauge is fixed on the sounding rod, and stable reading is directly perceived.
Description of drawings
Fig. 1 is the structure principle chart of the utility model one embodiment
Fig. 2 is voltage indicating gauge control circuit figure
Embodiment
Fig. 1 is the structure principle chart of the utility model one embodiment, and present embodiment comprises the first measuring sonde T1, the second measuring sonde T2, the first dropping resistor R1, the second dropping resistor R2, insulation operating grip S1 and S2, voltage indicating gauge V1 and measures lead W1; The first measuring sonde T1 connects with the first dropping resistor R1, one end, and the other end of the first dropping resistor R1 links with one that measures lead W1 with insulation operating grip S1; The second measuring sonde T2 connects with the second dropping resistor R2, one end, and the other end of the second dropping resistor R2 connects with the C end of insulation operating grip S2 and voltage indicating gauge V1; Voltage indicating gauge V1 is fixed on the insulation operating grip S2, and the D end links with the other end of measuring lead W1, and shell and E end are by lead W2 ground connection.
Fig. 2 is voltage indicating gauge control circuit figure, and the C end links to each other with an end of the 6th resistance R 6 with negative pole, the anodal of the second diode D2 of the first diode D1 respectively; The positive pole of the first diode D1 links to each other with the negative pole of negative pole, the 4th resistance R 4 and the 3rd diode D3 of an end of first capacitor C 1, microampere gauge outfit V2 respectively; The other end of first capacitor C 1 links to each other with an end of the 7th resistance R 7 with the back anodal in parallel of microampere gauge outfit V2, and the other end of the 7th resistance R 7 links to each other with an end of the 8th resistance R 8; The other end of the 8th resistance R 8 links to each other with the negative pole of the second diode D2, the common port of potentiometer RP, the sliding end of potentiometer RP and the negative pole of the 4th diode D4 respectively; The D end links to each other with an end of the 5th resistance R 5 with negative pole, the anodal of the 4th diode D4 of the 3rd diode D3 respectively; The other end of the 4th resistance R 4 links to each other with an end of the 3rd resistance R 3, and the other end of the 3rd resistance R 3 links to each other with the working end of potentiometer RP; The other end of the 5th resistance R 5 connects with the other end of the 6th resistance R 6 and is E end ground connection.
With 10kV nuclear phase pen is example, and when using the microampere gauge outfit of 3k Ω/50 μ A, the current maxima that flows through V, R1, R2 loop is 50 μ A, because design value R5 is 250k Ω, R6 is 250k Ω, and R1 is 50M Ω, and R2 is 50M Ω, the voltage difference of requirement between the first measuring sonde T1 and the second measuring sonde T2 is 0.2V, commutated current 90 μ A, total resistance 2222 Ω between T1 and the T2 are so amount limit spreading resistance and shunt resistance value can be respectively R1=820 Ω, R2=180 Ω, R3=2k Ω; R4=6.2k Ω; W1=1k Ω is used to regulate the indicating gauge display precision.

Claims (5)

1. high pressure nuclear phase pen is characterized in that: it comprises first measuring sonde, second measuring sonde, first dropping resistor, second dropping resistor, insulation operating grip, voltage indicating gauge and measures lead; First measuring sonde connects with first dropping resistor, one end, and the other end of first dropping resistor links with one that measures lead with the insulation operating grip; Second measuring sonde connects with second dropping resistor, one end, and the other end of second dropping resistor links with insulation operating grip and voltage indicating gauge; The voltage indicating gauge is fixed on the insulation operating grip, connects with the other end of measuring lead, and the earthing of casing.
2. high pressure nuclear phase pen according to claim 1, it is characterized in that: the internal circuit configuration of described voltage indicating gauge is: an end that connects with second dropping resistor is made as the C end, and the C end links to each other with an end of the 6th resistance with negative pole, the anodal of second diode of first diode respectively; The positive pole of first diode links to each other with an end of first electric capacity, negative pole, the 4th resistance and the negative pole of the 3rd diode of microampere gauge outfit respectively; The other end of first electric capacity links to each other with an end of the 7th resistance with the back anodal in parallel of microampere gauge outfit, and the other end of the 7th resistance links to each other with an end of the 8th resistance; The other end of the 8th resistance links to each other with the negative pole of second diode, the common port of potentiometer, the sliding end of potentiometer and the negative pole of the 4th diode respectively; An end that connects with first dropping resistor is made as the D end, and the D end links to each other with an end of the 5th resistance with negative pole, the anodal of the 4th diode of the 3rd diode respectively; The other end of the 4th resistance links to each other with an end of the 3rd resistance, and the other end of the 3rd resistance links to each other with the working end of potentiometer; The other end of the 5th resistance connects back ground connection with the other end of the 6th resistance.
3. high pressure nuclear phase pen according to claim 1 and 2, it is characterized in that: described the 5th resistance is 250k Ω, the 6th resistance is 250k Ω, the first dropping resistor resistance is 50M Ω, the second dropping resistor resistance is 50M Ω, and the resistance of the 7th resistance, the 8th resistance, the 3rd resistance and the 4th resistance is decided according to the parameter of microampere gauge outfit.
4. high pressure nuclear phase pen according to claim 3, it is characterized in that: it is that 3k Ω, maximum current are the microampere gauge outfit of 50 μ A that described microampere gauge outfit is selected internal resistance for use, the 7th resistance is 820 Ω, the 8th resistance is 180 Ω, the 3rd resistance is 2k Ω, and the 4th resistance is 6.2k Ω.
5. high pressure nuclear phase pen according to claim 4 is characterized in that: described potentiometer maximum value is 1k Ω.
CN2010201254407U 2010-03-04 2010-03-04 High-voltage nuclear phase pen Expired - Fee Related CN201666922U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201254407U CN201666922U (en) 2010-03-04 2010-03-04 High-voltage nuclear phase pen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201254407U CN201666922U (en) 2010-03-04 2010-03-04 High-voltage nuclear phase pen

Publications (1)

Publication Number Publication Date
CN201666922U true CN201666922U (en) 2010-12-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201254407U Expired - Fee Related CN201666922U (en) 2010-03-04 2010-03-04 High-voltage nuclear phase pen

Country Status (1)

Country Link
CN (1) CN201666922U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104880615A (en) * 2015-05-19 2015-09-02 苏州市华安普电力工程有限公司 High-voltage phase tester
CN105548708A (en) * 2015-11-30 2016-05-04 合保电气(芜湖)有限公司 Digital phase tester for transmission circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104880615A (en) * 2015-05-19 2015-09-02 苏州市华安普电力工程有限公司 High-voltage phase tester
CN105548708A (en) * 2015-11-30 2016-05-04 合保电气(芜湖)有限公司 Digital phase tester for transmission circuit

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101208

Termination date: 20170304

CF01 Termination of patent right due to non-payment of annual fee