Portable multifunctional test power supply device

Abstract

The invention relates to a portable multifunctional test power supply device which is characterized by consisting of a shell (2), front and rear insulating barriers (9), an insulating pad (11), an iron core (3), a primary coil (14), a secondary coil (4), a terminal (13), a terminal (12), a terminal (5), a terminal (6), a terminal (7) and a terminal (8), wherein the insulating pad (11) is arranged at the bottom inside the shell (2); the iron core (3) is arranged on the insulating pad (11); the primary coil (14) and the secondary coil (4) are wound on the iron core (3); the terminals (13, 12, 5, 6, 7 and 8) are arranged on the front and rear insulating barriers (9); handles (1) for carrying and moving the test power supply device are respectively arranged at the front and rear parts of the upper surface of the shell (2); the bottom of the shell (2) is provided with a felloe for pushing, pulling and moving the test power supply device; the terminal (13) and the terminal (12) are 220V voltage terminals; and the terminal (5), the terminal (6), the terminal (7) and the terminal (8) are voltage terminals capable of being freely combined in pairs. The technology has the characteristics that the structure is simple, the portable multifunctional test power supply device has multiple purposes and functions and is flexible and convenient to use and carry, and the like.

Description

[0001] 1. Fields: [0002] The invention relates to the technical field of grounding resistance measurement of a power system, in particular to a portable multifunctional test power supply device widely used in the grounding resistance measurement of a power system grounding grid. 2. Background technology: [0003] Currently, measuring the ground resistance of a power system ground grid often involves testing the power supply unit. Generally, the grounding resistance test of the grounding device, and the extraction of other high-current AC power sources that require different voltage levels, etc., the low-voltage AC power sources at the test or test site are set up one by one, and the general test equipment and test methods require testing. There must be an ungrounded test power supply on site, that is, the neutral point of the low-voltage side of the test power supply used cannot be grounded, which makes this work complicated and increases the unsafe factor of the grid operat...

AI Technical Summary

Problems solved by technology

Generally, the grounding resistance test of the grounding device, and the extraction of other high-current AC power sources that require different voltage levels, etc., the low-voltage AC power sources at the test or test site are set up one by one, and the general test equipment and test methods require testing. There must be an ungrounded test power supply on site, that is, the neutral point of the low-voltage side of the test power supply used cannot be grounded, which makes this work complicated and increases the unsafe factor of the power grid operation.

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