A secondary pressure drop tester

A tester and secondary pressure technology, applied in instruments, measuring devices, measuring electrical variables, etc., can solve problems such as related data leakage, unavoidable misoperation by non-staff, and inability to guarantee equipment and information security, and prevent The effect of leakage of relevant data

Active Publication Date: 2018-09-18
NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this utility model cannot guarantee the safety of equipment and information, and cannot avoid misoperation by non-staff and leakage of related data

Method used

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  • A secondary pressure drop tester
  • A secondary pressure drop tester
  • A secondary pressure drop tester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] like figure 1 , figure 2 , image 3 and Figure 4 As shown, a secondary voltage drop tester includes a main machine arranged on the electric energy meter side of the control room and an auxiliary machine arranged at the output end of the voltage transformer, and the auxiliary machine includes:

[0048] The second analog signal input circuit is used to complete the voltage division of the output terminal voltage of the voltage transformer to obtain a voltage suitable for A / D conversion;

[0049] The second analog signal acquisition circuit is used to acquire the analog signal of voltage transformer output terminal voltage;

[0050] The second A / D conversion circuit performs analog-to-digital conversion on the collected analog signal of the voltage transformer output terminal voltage;

[0051] The second main control system processes the converted digital signal and coordinates the operation of various circuits of the auxiliary machine;

[0052] The second working p...

Embodiment 2

[0078] The difference from Embodiment 1 is that: both the first display unit and the second display unit are touch screens; the first wireless communication module is a 3G wireless module, and both of the second wireless communication modules have frequency planning Simple, large system capacity, high frequency reuse coefficient, strong anti-multipath ability, good communication quality, soft capacity, soft switching, etc.; the first display unit and the second display unit are provided with transparent covers, the A transparent protective layer is provided on the transparent cover, and the protective layer includes the following components by weight: 0.9 parts of nano-zirconia, 0.3 parts of nano-zinc oxide, 0.5 parts of nano-titanium oxide, and 6 parts of nano-silicon oxide , 70 parts of polyurethane acrylate, 10 parts of UV diluting monomer, 0.4 parts of sodium alkylsulfonate, 25 parts of photoinitiator, 8 parts of acid-resistant porcelain powder, 5 parts of silicone wear-res...

Embodiment ３

[0080] The difference between it and Embodiment 2 is that: the first wireless communication module is the second wireless communication module, both of which are 4G wireless modules, which have the characteristics of fast communication speed, wide network spectrum, and flexible communication; the WIFI clock synchronization module Both I and the WIFI clock synchronization module II are equipped with a three-proof paint layer, and the three-proof paint layer includes the following components by weight: 20 parts of ethyl methacrylate, 15 parts of lauryl acrylate, 12 parts of styrene 9 parts of n-butyl acrylate, 35 parts of ethyl acetate, 1.5 parts of tri-tert-butyl peroxide, 1 part of dibenzylphosphonium tetraethyl ester, 2 parts of emulsifier, 5 parts of propylene glycol methyl ether acetate, liquid paraffin 0.5 parts, C10-C18 fatty acid 0.3 parts, ethyl acetate 0.2 parts, this three anti-paint layer has good high and low temperature resistance performance, after curing, it forms...

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PUM

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Abstract

The invention discloses a novel secondary voltage drop tester, which includes a main machine and an auxiliary machine, the auxiliary machine includes a second analog signal input circuit, a second analog signal acquisition circuit, a second A / D conversion circuit, and a second main control system , a second working power supply, a second identity recognition control module, a second USB interface, a second button unit, a second display unit, and a second wireless communication module; the host includes a first analog signal input circuit, a first analog signal acquisition circuit, The first A / D conversion circuit, the first main control system, the first working power supply, the first identity recognition control module, the WIFI clock synchronization module I, the first USB interface, the first button unit, the first display unit, and the first wireless communication module. The present invention can not only complete the secondary pressure drop test with high efficiency, high precision and high reliability in a complex test environment, but also improves the safety of the equipment and information of the present invention, avoiding misoperation by non-staff and the loss of related data. Give way.

Description

technical field [0001] The invention belongs to the technical field of electric power detection, and in particular relates to a secondary voltage drop tester. Background technique [0002] The secondary circuit of the voltage transformer contains components such as junction boxes, switches, cables and knob terminals, and there must be loop impedance. From the perspective of equivalent impedance, the impedance in the secondary circuit of the voltage transformer is divided into: self impedance and contact impedance. The impedance of the cable in the self-impedance part is the main part. The reason is that the length of the cable used in the secondary circuit of the voltage transformer is 100 meters or more. Therefore, the cross-section of the cable has a great influence on its resistance; the contact impedance part is the junction box. The sum of plugging and rotating impedances generated by components such as switches and knob terminals for the purpose of connection, this pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/25G01R25/00
CPCG01R19/2503G01R25/00
Inventor 郑建华郑卫东郑义程元卿李东晓王建伟王建磊靳敏江罗瑞李洪杨文一张翀李婷婷
Owner NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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