CN105467164A - A discharging rod special-purpose case with an electrical test apparatus - Google Patents
A discharging rod special-purpose case with an electrical test apparatus Download PDFInfo
- Publication number
- CN105467164A CN105467164A CN201510916195.9A CN201510916195A CN105467164A CN 105467164 A CN105467164 A CN 105467164A CN 201510916195 A CN201510916195 A CN 201510916195A CN 105467164 A CN105467164 A CN 105467164A
- Authority
- CN
- China
- Prior art keywords
- discharging rod
- test
- placement space
- discharging
- measuring instrument
- 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.)
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Classifications
-
- 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
- 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
- G01R27/08—Measuring resistance by measuring both voltage and current
Abstract
A discharging rod special-purpose case with an electrical test apparatus mainly comprises a case body. At least the following four spaces are arranged in the case body in a separated mode: a discharging rod placement space, a test wire placement plate, a test clamp and test insertion sheet space and a test instrument placement place. Two 10kv discharging rods are arranged in the discharging rod placement space. High-voltage terminals and grounding metal terminals of the 10kv discharging rods are respectively clamped in U-shaped metal clamping grooves installed in the bottom portion of the case body. The metal clamping grooves are respectively connected with the test instrument in the test instrument placement place. The discharging rod special-purpose case has characteristics of a simple structure, convenient operation and usage, a high safety degree, being able to relatively well prevent safety harms to human bodies and equipment, etc.
Description
Technical field
What the present invention relates to is a kind of discharging rod dedicated box with electric testing device, belongs to the safety detection technology field of electric power facility or equipment.
Technical background
In electric system high-potting process, removing or changing in the process of the test wire mode of connection, discharging rod all must be used to discharge fully to by testing equipment, otherwise, cause huge potential safety hazard by equipment and personnel, jeopardize the safety of life and equipment.Therefore, discharging rod intact, most important for electric system experiment work.But existing discharging rod does not have special electric discharge chest to carry out suitable laying for it, makes discharging rod easily cause damage in transportation.
Discharging rod before use, must ensure that the size of its discharge resistance meets the requirements prescribed, and discharging rod ground wire connects intact, only in this way, could carry out an electric discharge fully, ensure the safety of the person and equipment to tested equipment.Current high-potting discharging rod is all the mode adopting periodic detection, detect its serviceability and whether meet job requirement, but periodic detection mode sense cycle is longer, if in use there is unconspicuous damage and internal fault in high-potting discharging rod, testing crew can not Timeliness coverage, high-potting discharging rod can not complete electric discharge work to high-tension apparatus and reliable ground, easily cause serious potential safety hazard, simultaneously in high-potting process, need a large amount of test wires, cannot with the naked eye judge test wire quality in testing ground, easily unnecessary error is caused to the test data of electrical test, cause the safety hazard of the person and equipment.Therefore, how better to deposit discharging rod and to discharging rod and attached ground wire thereof, test wire carries out one and detects timely, is a problem needing solution badly.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art existence, and provide a kind of structure simple, easy for operation, security is good, can avoid the discharging rod dedicated box with the electric testing device person and equipment being caused to safety hazard preferably.
The object of the invention is to have come by following technical solution, a kind of discharging rod dedicated box with electric testing device, it mainly includes a casing, and placed separately in casing have at least following four spaces: discharging rod placement space, test wire placement space, test clamp and test inserted sheet placement space and measuring instrument placement space; Two 10KV discharging rods are placed with in the discharging rod placement space of described strip, the high pressure of described 10KV discharging rod and grounded metal end are connected in the U-shaped metal draw-in groove of bottom half installation respectively, and described metal draw-in groove is connected with the measuring instrument in measuring instrument placement space separately.
As preferably: described measuring instrument is made up of display screen, button, resistance measuring circuit, and is built-in with 12V rechargable power supplies; Described 12V rechargable power supplies exports measuring current by a current limliting constant pressure source, and is connected to Measurement channel through the current sampling resistor mechanism for automatically switching connected; Described Measurement channel has five tunnels and corresponds respectively to five groups of lead-out terminals on panel; Metering circuit comprises voltage and current signal that a receiving circuit collects and carries out the ARM controller of signal transacting after carrying out analog to digital conversion circuit, and described ARM controller is circumscribed with button, LCDs and audible-visual annunciator.
As preferably: described analog to digital converter mainly comprises an AD7799 chip, is connected to a difference amplifier AD8253 before this analog to digital converter; Described analog to digital converter is sent to ARM controller by a SPI serial line interface.
It is simple that the present invention has structure, and easy for operation, security is good, can avoid preferably causing the features such as safety hazard to the person and equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of discharging rod dedicated box of the present invention.
Fig. 2 is electrical test circuit theory diagrams of the present invention.
Fig. 3 is accessory power supply of the present invention and Energy control schematic diagram.
Fig. 4 is voltage and current signal sampling channel circuit theory diagrams of the present invention.
Fig. 5 is ARM controller circuit theory diagrams of the present invention.
Fig. 6 is electric current output loop schematic diagram of the present invention.
Fig. 7 is electrical test course of work block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 1, a kind of discharging rod dedicated box with electric testing device of the present invention, it mainly includes a casing 1, be configured with case lid above, placed separately in casing 1 have at least following four spaces: discharging rod placement space 2, test wire placement space 3, test clamp and test inserted sheet placement space 4 and measuring instrument placement space 5; Two 10KV discharging rods 6 are placed with in the discharging rod placement space 2 of described strip, the high pressure of described 10KV discharging rod 6 and grounded metal end are connected in the U-shaped metal draw-in groove of bottom half installation respectively, and described metal draw-in groove is connected with the measuring instrument 7 in measuring instrument placement space 5 separately.
Shown in Fig. 2, described measuring instrument 7 is made up of display screen 8, button 9, resistance measuring circuit, and is built-in with 12V rechargable power supplies, comprises battery charger 10,12V battery 11 and accessory power supply 12; Described 12V rechargable power supplies exports measuring current by a current limliting constant pressure source 13, and is connected to Measurement channel 15 through the current sampling resistor mechanism for automatically switching 14 connected; Described Measurement channel 15 has five tunnels and corresponds respectively to five groups of lead-out terminals 16 on panel; Metering circuit comprises voltage and current signal that a receiving circuit collects and carries out the ARM controller 18 of signal transacting after carrying out analog to digital conversion circuit 17, described ARM controller 18 is circumscribed with button 9, LCDs 8 and audible-visual annunciator, comprises hummer 19.Control 20, USB interface 21, pilot lamp 22 etc. are also comprised in Fig. 2.
Analog to digital converter of the present invention mainly comprises an AD7799 chip, is connected to a difference amplifier AD8253 before this analog to digital converter; Described analog to digital converter is sent to ARM controller by a SPI serial line interface.
Embodiment: shown in Fig. 1, electrically (high pressure) of the present invention is tested the multi-functional dedicated box of discharging rod and is divided into 4 blocks, discharging rod rest area 2, test wire rest area 3, test clamp and test inserted sheet rest area 4 and measuring instrument rest area (placement space), casing is of moderate size, unsuitable too high.
Discharging rod rest area 2 two 10kV discharging rods placed side by side, require compact, simultaneously the high pressure of discharging rod and grounded metal end snap in the U-shaped metal draw-in groove installed bottom chest, and draw-in groove direct lead wire is connected with measuring instrument, can measure the size of the discharge resistance of discharging rod.
Test clamp and test inserted sheet rest area, require to fit closely with box cover, prevent in chest moving process, the small articles such as clip are scattered everywhere.
Measuring instrument is made up of 128*64 display screen, button, resistance measuring circuit, and built-in 12V powered battery, provides the resistance measurement of 5 groups of connecting lines.Can arrange resistance to transfinite threshold values, when resistance is greater than threshold values, instrument carries out acousto-optic prompting.
Shown in Fig. 2, measuring instrument adopts 12V battery, can charge by external connection battery charger, 12 batteries, by current limliting constant pressure source, export full test electric current 0.5A, maximum output voltage 12V, automatically switched by current sampling resistor, to realize the measurement to 1m Ω-100M Ω resistance.Measurement channel one has five tunnels, five groups of lead-out terminals on corresponding panel.The voltage and current signal that circuit collects transfers to ARM controller by analog to digital conversion and carries out signal transacting.ARM module realizes the calculating of resistance and the switching of Measurement channel, and the resistance calculated can be shown by liquid crystal display, as resistance exceeds standard, can also realize sound and light alarm.ARM controller can be arranged by button.
Shown in Fig. 3, accessory power supply and Energy control are: cell voltage+12B is through panel-switch supply circuit plate, and Q1, R8, E4, R9, Q2, R11, R12 form Sofe Switch, when detecting that cell voltage is too low, by master controller, PWON signal is drawn high, play auto-breaking effect.Rear class, by U2-LM2576 and U3-1117 two Voltage stabilizing modules, produces the accessory power supply of+5V and+3.3V, the components and parts work in supply circuit respectively.
Shown in Fig. 4, described voltage and current signal sampling channel is: the voltage sampled, current signal, through difference amplifier AD8253, export serial analog-digital converter AD7799 to, transformation result is sent to master controller by SPI serial line interface and carries out calculating and processing.
Shown in Fig. 5, described ARM controller is: STM32F103VBT6 selected by master controller, and this controller is high-performance 32-bit arm processor, under being operated in 72MHz high speed dominant frequency, powerful, and with low cost, is highly suitable in the application of various complex control.
Shown in Fig. 6, described electric current output loop is :+12V voltage, through K2, K4, K6, K7, K8 relay, 5 of panel test channel are accessed measuring circuit, the current-limiting circuit be made up of Q3, R22, R23, R24, D6, within output current is limited in 0.5A respectively.Relay K 1, K3, K5 have switched 1 Ω, 100 Ω, 10k Ω third gear current sampling resistors, to adapt to different loading conditions, ensure measuring accuracy.
Shown in Fig. 7, the course of work of the present invention is: the total menu of start display, enter key scan program, products for further operates.When click menu is measured, first power-on exports, Measurement channel voltage, current signal again, counter circuit resistance again, then switching channel successively, measure the loop resistance value of each passage, the final loop resistance value showing each passage at display screen, and compare with the threshold values resistance arranged, when resistance transfinites, send acousto-optic hint.
Claims (3)
1. the discharging rod dedicated box with electric testing device, it mainly includes a casing, and placed separately in casing have at least following four spaces: discharging rod placement space, test wire placement space, test clamp and test inserted sheet placement space and measuring instrument placement space; Two 10KV discharging rods are placed with in the discharging rod placement space that it is characterized in that described strip, the high pressure of described 10KV discharging rod and grounded metal end are connected in the U-shaped metal draw-in groove of bottom half installation respectively, and described metal draw-in groove is connected with the measuring instrument in measuring instrument placement space separately.
2. the discharging rod dedicated box with electric testing device according to claim 1, is characterized in that described measuring instrument is made up of display screen, button, resistance measuring circuit, and is built-in with 12V rechargable power supplies; Described 12V rechargable power supplies exports measuring current by a current limliting constant pressure source, and is connected to Measurement channel through the current sampling resistor mechanism for automatically switching connected; Described Measurement channel has five tunnels and corresponds respectively to five groups of lead-out terminals on panel; Metering circuit comprises voltage and current signal that a receiving circuit collects and carries out the ARM controller of signal transacting after carrying out analog to digital conversion circuit, and described ARM controller is circumscribed with button, LCDs and audible-visual annunciator.
3. the discharging rod dedicated box with electric testing device according to claim 2, is characterized in that described analog to digital converter mainly comprises an AD7799 chip, is connected to a difference amplifier AD8253 before this analog to digital converter; Described analog to digital converter is sent to ARM controller by a SPI serial line interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510916195.9A CN105467164A (en) | 2015-12-10 | 2015-12-10 | A discharging rod special-purpose case with an electrical test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510916195.9A CN105467164A (en) | 2015-12-10 | 2015-12-10 | A discharging rod special-purpose case with an electrical test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105467164A true CN105467164A (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510916195.9A Pending CN105467164A (en) | 2015-12-10 | 2015-12-10 | A discharging rod special-purpose case with an electrical test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105467164A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507544A (en) * | 2018-03-26 | 2019-03-22 | 金华送变电工程有限公司 | A kind of high-potting discharging rod dedicated box |
| CN113203922A (en) * | 2021-03-29 | 2021-08-03 | 嘉兴市恒光电力建设有限责任公司 | High-voltage discharge testing device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6054865A (en) * | 1998-03-03 | 2000-04-25 | Associated Research, Inc. | Multiple function electrical safety compliance analyzer |
| CN201408206Y (en) * | 2009-05-12 | 2010-02-17 | 青海电力科学试验研究院 | Insulator detector accessory case |
| CN203317401U (en) * | 2013-05-08 | 2013-12-04 | 嘉兴电力局 | Box for high-voltage test auxiliary tools |
| CN103454508A (en) * | 2012-05-30 | 2013-12-18 | 路华科技(深圳)有限公司 | Four-channel overcurrent and overvoltage protecting tester |
| CN104155544A (en) * | 2014-07-22 | 2014-11-19 | 国家电网公司 | Special high-voltage test discharging rod on-site detection box |
| CN104297526A (en) * | 2013-11-29 | 2015-01-21 | 中国航空工业集团公司洛阳电光设备研究所 | Hybrid general test device |
-
2015
- 2015-12-10 CN CN201510916195.9A patent/CN105467164A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6054865A (en) * | 1998-03-03 | 2000-04-25 | Associated Research, Inc. | Multiple function electrical safety compliance analyzer |
| CN201408206Y (en) * | 2009-05-12 | 2010-02-17 | 青海电力科学试验研究院 | Insulator detector accessory case |
| CN103454508A (en) * | 2012-05-30 | 2013-12-18 | 路华科技(深圳)有限公司 | Four-channel overcurrent and overvoltage protecting tester |
| CN203317401U (en) * | 2013-05-08 | 2013-12-04 | 嘉兴电力局 | Box for high-voltage test auxiliary tools |
| CN104297526A (en) * | 2013-11-29 | 2015-01-21 | 中国航空工业集团公司洛阳电光设备研究所 | Hybrid general test device |
| CN104155544A (en) * | 2014-07-22 | 2014-11-19 | 国家电网公司 | Special high-voltage test discharging rod on-site detection box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507544A (en) * | 2018-03-26 | 2019-03-22 | 金华送变电工程有限公司 | A kind of high-potting discharging rod dedicated box |
| CN113203922A (en) * | 2021-03-29 | 2021-08-03 | 嘉兴市恒光电力建设有限责任公司 | High-voltage discharge testing device and method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |