CN112162230A - On-spot check-up equipment of 10kV column switch voltage transformer - Google Patents
On-spot check-up equipment of 10kV column switch voltage transformer Download PDFInfo
- Publication number
- CN112162230A CN112162230A CN202011035968.XA CN202011035968A CN112162230A CN 112162230 A CN112162230 A CN 112162230A CN 202011035968 A CN202011035968 A CN 202011035968A CN 112162230 A CN112162230 A CN 112162230A
- Authority
- CN
- China
- Prior art keywords
- voltage
- low
- terminal
- wiring terminal
- pole
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Abstract
The invention relates to a field calibration device for a 10kV pole-mounted switch voltage transformer, which is characterized by comprising the following components: the high-voltage wiring terminal is connected to a first high-voltage terminal of the mutual inductor through a high-voltage insulated wire, the first low-voltage wiring terminal is connected to a first low-voltage terminal of the mutual inductor through a low-voltage insulated wire, and the second low-voltage wiring terminal is connected to a second low-voltage terminal of the mutual inductor through a low-voltage insulated wire; the second low-voltage binding post and a second high-voltage terminal of the mutual inductor are grounded through a grounding wire; a low-voltage voltmeter and a booster are arranged between the first low-voltage wiring terminal and the second low-voltage wiring terminal in parallel; the high-voltage wiring terminal is also connected to a first end of an electrostatic voltmeter, and a second end of the electrostatic voltmeter is grounded.
Description
Technical Field
The invention belongs to the technical field of power equipment, particularly relates to calibration equipment for a power system, and particularly relates to on-site calibration equipment for a 10kV pole-mounted switch voltage transformer.
Background
A power distribution switch monitoring system (FTU for short) installed on a column switch has the functions of remote control, remote signaling and fault detection, is communicated with a power distribution automation main station, provides the running condition of a power supply system and various parameters, namely information required by detection and control, including on-off state, electric energy parameters, phase-to-phase faults, grounding faults and fault parameters, executes commands issued by the power distribution main station, and has the functions of regulating and controlling power distribution equipment, positioning sight faults, isolating faults, rapidly recovering power supply in non-fault areas and the like.
And a power supply voltage transformer (PT) is used for supplying power to a power distribution switch monitoring system (FTU for short) of the column switch. In practical application, the problems of insulation defect, primary and secondary disconnection and the like do not need special metrological verification, but a withstand voltage test and a secondary voltage test of the mutual inductor are needed to be carried out, and whether the mutual inductor is qualified or not is checked.
Professional equipment such as a step-up transformer, a voltage regulator and a universal meter is needed for making insulating oil voltage-resistant equipment in actual work, equipment reconnection is complex, and secondary damage such as secondary insulation breakdown is easily caused to influence equipment use. This is a disadvantage of the prior art.
In view of the above, the invention provides a field calibration device for a 10kV pole-mounted switch voltage transformer; it is very necessary to solve the above-mentioned defects existing in the prior art.
Disclosure of Invention
The invention aims to provide a field calibration device for a 10kV pole-mounted switch voltage transformer, aiming at the defects in the prior art, so as to solve the technical problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a10 kV pole top switch voltage transformer field calibration equipment includes:
the high-voltage wiring terminal is connected to a first high-voltage terminal of the mutual inductor through a high-voltage insulated wire, the first low-voltage wiring terminal is connected to a first low-voltage terminal of the mutual inductor through a low-voltage insulated wire, and the second low-voltage wiring terminal is connected to a second low-voltage terminal of the mutual inductor through a low-voltage insulated wire;
the second low-voltage binding post and a second high-voltage terminal of the mutual inductor are grounded through a grounding wire;
a low-voltage voltmeter and a booster are arranged between the first low-voltage wiring terminal and the second low-voltage wiring terminal in parallel;
the high-voltage wiring terminal is also connected to a first end of an electrostatic voltmeter, and a second end of the electrostatic voltmeter is grounded.
Preferably, the low-voltage insulated wire is a low-voltage insulated multi-core copper wire; ensuring stable transmission of current.
Preferably, the outer skin of the high-voltage insulated wire is a silicon rubber outer skin; the insulation effect of the high-voltage insulated wire is improved.
Preferably, the division value of the electrostatic voltmeter is 1.0 kV; the detection precision is improved.
Preferably, the insulation strength of the high-voltage insulated wire is not lower than 5 kV; ensuring the brilliant effect.
Preferably, the insulation strength of the high-voltage wiring terminal is not lower than 5 kV; the insulating effect is ensured.
Preferably, the measuring range of the low-voltage voltmeter is 0-500V, and the division value is 1V; the measurement precision is improved.
Preferably, the high-voltage terminal, the first low-voltage terminal, the second low-voltage terminal, the electrostatic voltmeter, the low-voltage voltmeter and the booster are all arranged in a protective shell, and a shell of the protective shell is grounded through a grounding wire; the safety of operators is ensured, and electric shock accidents are avoided.
The transformer testing device has the advantages that the booster is used for boosting the low-voltage end of the transformer, so that the damage to the transformer in the testing process is reduced; meanwhile, the accuracy of the detection result is improved; simple structure is applicable to the field application, and the security is high, and the result of application is good, has improved work efficiency and has reduced intensity of labour. In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
Fig. 1 is a schematic block diagram of a 10kV pole top switch voltage transformer field calibration device provided by the invention.
The transformer comprises a high-voltage wiring terminal 1, a first low-voltage wiring terminal 2, a second low-voltage wiring terminal 3, a high-voltage insulated wire 4, a mutual inductor 5, a first high-voltage terminal 6, a low-voltage insulated wire 7, a first low-voltage terminal 8, a second low-voltage terminal 9, a second high-voltage terminal 10, a grounding wire 11, a low-voltage voltmeter 12, a booster 13, an electrostatic voltmeter 14 and a protective shell 15.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.
As shown in fig. 1, the field calibration equipment for a 10kV pole-mounted switching voltage transformer provided by this embodiment includes:
the high-voltage wiring terminal comprises a high-voltage wiring terminal 1, a first low-voltage wiring terminal 2 and a second low-voltage wiring terminal 3, wherein the insulation strength of the high-voltage wiring terminal 1 is not lower than 5 kV; the insulating effect is ensured. The high-voltage wiring terminal 1 is connected to a first high-voltage terminal 6 of a mutual inductor 5 through a high-voltage insulated wire 4, and the insulation strength of the high-voltage insulated wire 4 is not lower than 5 kV; ensuring the brilliant effect. The outer skin of the high-voltage insulated wire 4 is a silicon rubber outer skin; the insulation effect of the high-voltage insulated wire is improved. The first low-voltage terminal 2 is connected to a first low-voltage terminal 8 of the mutual inductor through a low-voltage insulated wire 7, and the second low-voltage terminal 3 is connected to a second low-voltage terminal 9 of the mutual inductor through the low-voltage insulated wire 7; the low-voltage insulated wire is a low-voltage insulated multi-core copper wire; ensuring stable transmission of current.
The second low-voltage binding post 3 and a second high-voltage terminal 10 of the mutual inductor are grounded through a grounding wire 11;
a low-voltage voltmeter 12 and a booster 13 are arranged between the first low-voltage terminal 2 and the second low-voltage terminal 3 in parallel; the measuring range of the low-voltage voltmeter 12 is 0-500V, and the division value is 1V; the measurement precision is improved.
The high-voltage terminal 1 is also connected to a first end of an electrostatic voltmeter 14, and a second end of the electrostatic voltmeter 14 is grounded. The division value of the electrostatic voltmeter 14 is 1.0 kV; the detection precision is improved. The high-voltage wiring terminal, the first low-voltage wiring terminal, the second low-voltage wiring terminal, the static voltmeter, the low-voltage voltmeter and the booster are all arranged in the protective shell 15, and the shell of the protective shell is grounded through a grounding wire; the safety of operators is ensured, and electric shock accidents are avoided.
The booster knob is set to the initial position 0 before use. And after checking that the position of the connecting line is error-free, starting the booster to regulate the voltage to 220V, observing the voltage-to-transformation ratio of the electrostatic voltmeter and calculating.
If the voltage withstand test is carried out, the voltage is correspondingly adjusted to the corresponding position, and the change condition of the meter and whether the tested equipment is abnormal (flashover, heating, peculiar smell and the like) are observed according to the static time to judge.
The booster is used for regulating the voltage of the low-voltage end of the mutual inductor, the regulating range is 0-250 volts, and the low-voltage voltmeter is used for reading a regulating value.
The booster regulates voltage to be pressurized from a low-voltage terminal of the transformer, and a corresponding high voltage (10kV) is induced from the high-voltage side of the voltage transformer; plus or minus 0.1 error is allowed.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a 10kV pole top switch voltage transformer field calibration equipment which characterized in that includes:
the high-voltage wiring terminal is connected to a first high-voltage terminal of the mutual inductor through a high-voltage insulated wire, the first low-voltage wiring terminal is connected to a first low-voltage terminal of the mutual inductor through a low-voltage insulated wire, and the second low-voltage wiring terminal is connected to a second low-voltage terminal of the mutual inductor through a low-voltage insulated wire;
the second low-voltage binding post and a second high-voltage terminal of the mutual inductor are grounded through a grounding wire;
a low-voltage voltmeter and a booster are arranged between the first low-voltage wiring terminal and the second low-voltage wiring terminal in parallel;
the high-voltage wiring terminal is also connected to a first end of an electrostatic voltmeter, and a second end of the electrostatic voltmeter is grounded.
2. The field calibration equipment of a 10kV pole-mounted switch voltage transformer, according to claim 1, characterized in that the low-voltage insulated wires are low-voltage insulated multi-core copper wires.
3. The field calibration equipment of a 10kV pole-mounted switch voltage transformer according to claim 2, wherein the sheath of the high-voltage insulated wire is a silicon rubber sheath.
4. The field calibration equipment of a 10kV pole-mounted switch voltage transformer according to claim 3, wherein the division value of the electrostatic voltmeter is 1.0 kV.
5. The field calibration equipment of a 10kV pole-mounted switch voltage transformer according to claim 4, wherein the insulation strength of the high-voltage insulated wire is not lower than 5 kV.
6. The field calibration equipment of a 10kV pole-mounted switch voltage transformer according to claim 5, wherein the insulation strength of the high-voltage wiring terminal is not lower than 5 kV.
7. The field calibration equipment of a 10kV pole-mounted switch voltage transformer according to claim 6, wherein the range of the low-voltage voltmeter is 0-500V, and the division value is 1V.
8. The field calibration equipment of the 10kV pole-mounted switch voltage transformer as recited in claim 7, wherein the high voltage terminal, the first low voltage terminal, the second low voltage terminal, the electrostatic voltmeter, the low voltage voltmeter and the booster are all arranged in a protective shell, and a shell of the protective shell is grounded through a grounding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035968.XA CN112162230A (en) | 2020-09-27 | 2020-09-27 | On-spot check-up equipment of 10kV column switch voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011035968.XA CN112162230A (en) | 2020-09-27 | 2020-09-27 | On-spot check-up equipment of 10kV column switch voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112162230A true CN112162230A (en) | 2021-01-01 |
Family
ID=73861309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011035968.XA Pending CN112162230A (en) | 2020-09-27 | 2020-09-27 | On-spot check-up equipment of 10kV column switch voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112162230A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411097A (en) * | 2010-09-20 | 2012-04-11 | 河南平高东芝高压开关有限公司 | Test control device for current transformer |
| CN202330691U (en) * | 2011-11-17 | 2012-07-11 | 宁夏电力公司电力科学研究院 | Field calibrating equipment for voltage transformer |
| CN103558573A (en) * | 2013-11-14 | 2014-02-05 | 中国三冶集团有限公司电气安装工程公司 | Performance testing method for voltage transformer |
| CN203561743U (en) * | 2013-11-14 | 2014-04-23 | 中国三冶集团有限公司电气安装工程公司 | Performance testing device for voltage transformer |
| CN110824404A (en) * | 2019-10-09 | 2020-02-21 | 中国电力科学研究院有限公司 | On-site calibration method for direct-current voltage transformer |
-
2020
- 2020-09-27 CN CN202011035968.XA patent/CN112162230A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411097A (en) * | 2010-09-20 | 2012-04-11 | 河南平高东芝高压开关有限公司 | Test control device for current transformer |
| CN202330691U (en) * | 2011-11-17 | 2012-07-11 | 宁夏电力公司电力科学研究院 | Field calibrating equipment for voltage transformer |
| CN103558573A (en) * | 2013-11-14 | 2014-02-05 | 中国三冶集团有限公司电气安装工程公司 | Performance testing method for voltage transformer |
| CN203561743U (en) * | 2013-11-14 | 2014-04-23 | 中国三冶集团有限公司电气安装工程公司 | Performance testing device for voltage transformer |
| CN110824404A (en) * | 2019-10-09 | 2020-02-21 | 中国电力科学研究院有限公司 | On-site calibration method for direct-current voltage transformer |
Non-Patent Citations (1)
| Title |
|---|
| 区建腾: "变压器常用试验测试与分析", 《电力讯息》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101354418B (en) | Power transformer test method without disconnecting wire | |
| CN205080251U (en) | Through -flow calibration system of current transformer secondary circuit | |
| CN102780234B (en) | High-voltage electric debugging method for power generation project | |
| CN106324444B (en) | Transformer test platform | |
| CN108387828A (en) | A kind of ac voltage withstanding test device and its test method | |
| CN202794367U (en) | Electrothermal aging test device of cross-linked polyethylene cable accessory | |
| CN108318766A (en) | Operation vehicle for contact wire's AC power distribution cabinet/AC distribution panel device for fast detecting | |
| CN207798935U (en) | Current transformer calibration device in integrated GIS pipelines | |
| CN207946485U (en) | Operation vehicle for contact wire's AC power distribution cabinet/AC distribution panel device for fast detecting | |
| Yan et al. | Research on measurement technology of transformer no-load loss based on Internet of Things | |
| CN102565614B (en) | Alternating voltage loop test method | |
| CN110045188B (en) | System and method for measuring insulation resistance of transformer without dismounting high-voltage side lead | |
| CN112162230A (en) | On-spot check-up equipment of 10kV column switch voltage transformer | |
| CN208621711U (en) | A kind of ac voltage withstanding test device | |
| CN203350397U (en) | Abnormal noise inspection device of high voltage sealed switch cabinet or sealed bus bar | |
| CN107957539B (en) | A kind of electromagnetic potential transformer first winding tail end insulation detecting method and device | |
| CN103454536A (en) | Power transformer test method | |
| CN113759199A (en) | Testing device and testing method for primary and secondary fusion equipment acting on power distribution network | |
| CN212410767U (en) | Alternating current voltage withstand test device for high-voltage cable | |
| CN209486281U (en) | A kind of three-phase mutual inductor simulation linked network detection system | |
| CN216285604U (en) | Subway GIS high tension switchgear system detection device | |
| CN106291296B (en) | A kind of partial discharge of transformer defects simulation device and method | |
| CN206515393U (en) | A kind of GIS circuit loops resistance measuring instrument | |
| CN219302545U (en) | Lightning arrester handover test system | |
| CN105021908A (en) | Intelligent high voltage test system |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210101 |
|
| RJ01 | Rejection of invention patent application after publication |