CN-224218141-U - Electroscope verification power supply

CN224218141UCN 224218141 UCN224218141 UCN 224218141UCN-224218141-U

Abstract

The utility model discloses an electroscope verification power supply. The electroscope verification power supply comprises a shell, a battery module, an alternating current-direct current voltage-boosting and-reducing module, an alternating current-direct current switching module and an electroscope jack, wherein the battery module, the alternating current-direct current voltage-boosting and-reducing module, the alternating current-direct current switching module and the electroscope jack are arranged in the shell, the battery module is respectively and electrically connected with the alternating current-direct current voltage-boosting and-reducing module and the alternating current-direct current switching module, the alternating current-direct current voltage-boosting and-reducing module comprises an alternating current voltage-boosting and reducing circuit, a direct current voltage-boosting and reducing circuit and a voltage-boosting and-reducing control circuit, the output end of the voltage-boosting and voltage-reducing control circuit is respectively and electrically connected with the input end of the alternating current voltage-boosting and reducing circuit and the input end of the direct current voltage-boosting and reducing circuit, the alternating current-reducing module is respectively and electrically connected with the alternating current voltage-boosting and reducing circuit and the electroscope jack. The battery voltage is regulated and converted, the alternating current voltage and the direct current voltage required by verification are output, the verification time of the multiplication charged equipment is shortened, and the safety and the accuracy of electricity verification are improved.

Inventors

CHEN TONGFU
LI BIAO
XU YIQUAN

Assignees

山东核电有限公司

Dates

Publication Date: 20260508
Application Date: 20250521

Claims (10)

1. An electroscope verification power supply, comprising: the battery module, the alternating current-direct current voltage increasing and decreasing module, the alternating current-direct current switching module and the electroscope jack are arranged in the shell; the battery module is respectively and electrically connected with the alternating current-direct current voltage boosting and reducing module and the alternating current-direct current switching module; The alternating current-direct current buck-boost module comprises an alternating current buck-boost circuit, a direct current buck-boost circuit and a buck-boost control circuit, wherein the output end of the buck-boost control circuit is respectively and electrically connected with the input end of the alternating current buck-boost circuit and the input end of the direct current buck-boost circuit; The alternating current-direct current switching module is respectively and electrically connected with the alternating current voltage-boosting and-reducing circuit and the direct current voltage-boosting and-reducing circuit, and the voltage output end of the alternating current-direct current switching module is electrically connected with the electroscope jack.
2. The electroscope verification power supply of claim 1, wherein the ac/dc switching module comprises an ac/dc switching unit and an ac/dc switching relay, the ac/dc switching unit being electrically connected to the battery module, the ac/dc buck-boost module and the ac/dc switching relay, respectively.
3. The electroscope verification power supply of claim 2, wherein the ac-dc switching unit comprises an ac button and a dc button, the ac-dc switching relay comprises a first ac-dc switching relay and a second ac-dc switching relay; The alternating current button comprises a first switching end, a first contact and a second contact; the direct current button comprises a second switching end, a third contact and a fourth contact; The first end of the first switching end and the first end of the second switching end are electrically connected with the negative electrode of the battery module; The second end of the first switching end is electrically connected with the first contact or the second contact; a second end of the second switching end is electrically connected with the third contact or the fourth contact; The second end of the first contact is connected with the first input end of the first AC/DC switching relay; the first end of the second contact is connected with the first input end of the second AC/DC switching relay; The second end of the fourth contact and the second end of the second contact are both electrically connected with the positive electrode of the battery module.
4. The electroscope verification power source of claim 3, wherein the first ac-dc switching relay comprises a first coil and a first normally open contact; the second end of the first contact is connected with the first input end of the first coil; The second end of the third contact is connected with the first input end of the second coil; The second input end of the first coil and the second input end of the second coil are electrically connected with the negative electrode of the battery module; the first end of the first normally open contact is electrically connected with the output end of the alternating current step-up and step-down circuit, and the first voltage output end of the first normally open contact is electrically connected with the electroscope jack; The first end of the second normally open contact is electrically connected with the output end of the direct current step-up and step-down circuit, and the second voltage output end of the second normally open contact is electrically connected with the electroscope jack.
5. The electroscope verification power supply of claim 1, further comprising an electrical quantity detection module and an electrical quantity display module, wherein an input of the electrical quantity detection module is electrically connected to the positive electrode of the battery module, and an output of the electrical quantity detection module is electrically connected to an input of the electrical quantity display module.
6. The electroscope verification power supply of claim 5, further comprising a voltage detection module and a voltage display module, wherein an input of the voltage detection module is electrically connected to a voltage output of the ac/dc switching module, and an output of the voltage detection module is electrically connected to an input of the voltage display module.
7. The electroscope verification power source of claim 6, wherein the charge display module and the voltage display module are integrally provided.
8. The electroscope verification power supply of claim 1, further comprising a power switch located between the battery module and the ac-dc buck-boost module.
9. The electroscope verification power source of claim 1, further comprising a charge management module, an output of the charge management module being electrically connected to a receiving end of the battery module.
10. The electroscope verification power supply of claim 9, further comprising a power adapter having an input connected to an external power source and an output electrically connected to the input of the charge management module.

Description

Electroscope verification power supply Technical Field The utility model relates to the technical field of power systems, in particular to an electroscope verification power supply. Background The electrical equipment maintenance belongs to high-risk industry, and corresponding safety isolation measures are required to be made before maintenance, and the electrical equipment maintenance is checked, so that the electrical equipment maintenance process is in an uncharged state. When electricity is tested, a qualified electricity testing power supply with correct voltage level is required to be used, and the principle of electrification-non-electrification (LIVE-DEAD-LIVE) is required to be followed when electricity is tested, namely the electricity is tested on a verification power supply by using an electroscope, the performance of the electroscope is verified, the availability of the electroscope is ensured, then the electricity is tested on maintenance equipment by using the electroscope, finally the electricity is tested on the verification power supply by using the electroscope, the display voltage of the electroscope is confirmed to be correct, and the performance of the electroscope is confirmed, so that the maintenance equipment is ensured to be uncharged. The traditional live verification method needs to verify the performance of the electroscope by means of a field maintenance power supply box power supply or a power frequency low-voltage sine wave generator, the maintenance box is generally away from maintenance electrical equipment, the maintenance power supply box is unstable in voltage, the electricity verification time is long, the verification voltage is inaccurate, the power frequency low-voltage sine wave generator is heavy, the field is inconvenient to carry, and extra work load is brought to the electricity verification work. Disclosure of utility model The utility model provides an electroscope verification power supply, which aims to shorten the verification time of live equipment and improve the safety and accuracy of electroscope. According to an aspect of the present utility model, there is provided an electroscope verification power supply comprising: the battery module, the alternating current-direct current voltage increasing and decreasing module, the alternating current-direct current switching module and the electroscope jack are arranged in the shell; the battery module is respectively and electrically connected with the alternating current-direct current voltage boosting and reducing module and the alternating current-direct current switching module; The alternating current-direct current buck-boost module comprises an alternating current buck-boost circuit, a direct current buck-boost circuit and a buck-boost control circuit; The output end of the buck-boost control circuit is respectively and electrically connected with the input end of the alternating current buck-boost circuit and the input end of the direct current buck-boost circuit; The alternating current-direct current switching module is respectively and electrically connected with the alternating current voltage-boosting and-reducing circuit and the direct current voltage-boosting and-reducing circuit, and the voltage output end of the alternating current-direct current switching module is electrically connected with the electroscope jack. Optionally, the ac/dc switching module includes an ac/dc switching unit and an ac/dc switching relay, where the ac/dc switching unit is electrically connected to the battery module, the ac/dc buck-boost module and the ac/dc switching relay, respectively. Optionally, the ac/dc switching unit includes an ac button and a dc button, and the ac/dc switching relay includes a first ac/dc switching relay and a second ac/dc switching relay; The alternating current button comprises a first switching end, a first contact and a second contact; the direct current button comprises a second switching end, a third contact and a fourth contact; The first end of the first switching end and the first end of the second switching end are electrically connected with the negative electrode of the battery module; The second end of the first switching end is electrically connected with the first contact or the second contact; a second end of the second switching end is electrically connected with the third contact or the fourth contact; The second end of the first contact is connected with the first input end of the first AC/DC switching relay; the first end of the second contact is connected with the first input end of the second AC/DC switching relay; The second end of the fourth contact and the second end of the second contact are both electrically connected with the positive electrode of the battery module. Optionally, the first AC/DC switching relay comprises a first coil and a first normally open contact, and the second AC/DC switching relay comprises a second coil and a second normally open contact