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Small current generator

A current generator, small-scale technology, applied in the direction of motor generator testing, electrical measuring instrument components, instruments, etc., can solve the problems of large current generator current, low safety and reliability, complicated wiring, etc., to achieve debugging Small current, save debugging cost, good effect

Inactive Publication Date: 2012-06-13
THE THIRD CONSTR CO LTD OF CHINA CONSTR THIRD ENG BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a small current generator, to solve the technical problems of large current generator for debugging, complicated wiring, cumbersome construction, low safety and reliability; and to solve the problems of long construction period, low efficiency and high cost question

Method used

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Embodiment Construction

[0018] see figure 1 Shown, the schematic diagram of the structure of the small current generator. A small current generator, comprising a small transformer T1, a fourth ammeter A0, a first ammeter A1, a second ammeter A2 and a third ammeter A3, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4, the fourth adjustable potentiometer RP0, the first adjustable potentiometer RP1, the second adjustable potentiometer RP2 and the third adjustable potentiometer RP3, the light emitting diode VD1 and the RJ45 network interface. Wherein, the first ammeter A1 , the second ammeter A2 , the third ammeter A3 and the fourth ammeter A0 are mA ammeters. The first resistor R1 , the second resistor R2 and the third resistor R3 are all made of two 22 ohm and 1 watt resistors connected in parallel, and the fourth resistor R4 is made of a 1000 ohm ordinary resistor. The first adjustable potentiometer RP1 , the second adjustable potentiometer RP2 and the third ad...

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Abstract

The invention discloses a small current generator. A branch circuit consisting of a current meter A1, a resistor R1 and an adjustable potentiometer RP1 which are connected in series with one another, a branch circuit consisting of a current meter A2, a resistor R2 and an adjustable potentiometer RP2 which are connected in series with one another and a branch circuit consisting of a current meter A3, a resistor R3 and an adjustable potentiometer RP3 which are connected in series with one another are connected in parallel with one another to form a parallel branch circuit; a branch circuit consisting of the parallel branch circuit and an adjustable potentiometer RP4 which are connected in series with each other and a branch circuit consisting of a light emitting diode VD1 and a resistor R4 which are connected in series with each other are connected in parallel with each other; one end of the output end of a transformer is connected with a current meter A0, and the other end of the output end of the transformer is connected with one end of the resistor R4, which is not connected with the light emitting diode VD1; the other end of the output end of the transformer is connected to three interfaces on the lower row of a network interface RJ45; three interfaces on the upper row of the network interface RJ45 are connected to the interfaces of the adjustable potentiometers RP1, RP2 and RP3, which are not connected with the resistors R1, R2 and R3 respectively; and the output end of the network interface RJ45 outputs small current. The small current generator is small in debugging current, simple in wire connection operation, high in safety reliability, short in working time, and low in cost, and is convenient to construct.

Description

technical field [0001] The invention relates to an electric current generating device. Background technique [0002] Liquid chemical material pump motors are often used in liquid chemical storage warehouses, with a minimum power of 75KW and a maximum power of 160KW. This type of motor has very high requirements for explosion-proof and operational stability. The motor is damaged. [0003] The existing material pump motor adopts an intelligent motor protector. Before the pump is put into use, it is required to conduct motor protection device setting and simulated action tests to ensure that the motor can run normally during the working process. Therefore, a high-current generator for debugging is required. Currently, the market The price of high-current generators with average quality is about 50,000 yuan, and the price of high-quality ones is about 100,000 yuan. If the power supply bureau is invited to make the protection device, at least 2 commissioning personnel must coop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/28G01R31/34
Inventor 何穆徐文胜王伟吴光海茹萍徐静杨其招
Owner THE THIRD CONSTR CO LTD OF CHINA CONSTR THIRD ENG BUREAU
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