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Motor test method

A technology of electric motor and linkage, which is applied in the field of electric motor test run, can solve the problems of many logic programs and complex operation, and achieve the effect of solving the problem of operational complexity and changing the work of terminal short-circuiting and removal

Active Publication Date: 2021-06-15
SYNEFUELS CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] As mentioned above, the motor test method in the present invention has at least the following advantages: the present invention completes three test modes by adding optional functions on the motor protection control panel, thereby changing the traditional hard-wired control circuit in the test mode. The terminal short-circuiting and removal work is carried out, and the problem of operational complexity caused by too many logic programs in the prior art of controlling multiple test modes through multiple logics is solved

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Embodiment Construction

[0021] The invention relates to a logic control method of a low-voltage motor protector (FH). Using various input signals of the motor protector, the logic circuit performs a certain logic judgment inside to form the start and stop commands required for the operation of the motor. in the motor control circuit. Among them, in order to form the "on" command logic output of the motor, the input of the motor protector FH generally includes the following:

[0022] 1. On-site driving signal;

[0023] 2. Meter interlock stop signal contact K2;

[0024] 3. The instrument allows the start signal contact Y1;

[0025] 4. Circuit breaker auxiliary contact QA;

[0026] 5. Running feedback signal KM

[0027] Among them, the circuit breaker auxiliary contact QA, the meter allowable start signal contact Y1, the meter stop interlock stop signal contact K2 are the basic logic judgment conditions for driving, which is the same as figure 1 The hardwired control circuit is the same. However,...

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Abstract

The present invention provides a kind of electric motor test run method, and it comprises: setting test position test run option (option 1), working position stand-alone test run option (option 2) and working position linkage test run option (option 3) including sub-options, when performing test position During the test run, start option 1 and receive the driving signal to make the protector issue a driving command; when performing a stand-alone test run at the working position, start option 2 and receive the starting signal to make the protector issue a driving command; when performing a joint test run at the working position, start After option 3, select the sub-option and receive the driving signal to make the protector issue a driving command. When option 1 is activated, QA, Y1 and K2 are forced to be high level 1. When option 2 is activated, Y1 and K2 are forced to be high Level 1, select the sub-option when option 3 is activated, select the option "connect external signal" when it is required to control Y1 or K2, force Y1 or K2 to 1 or select "no connection" when it is not required to control Y1 or K2 input external signal" option.

Description

technical field [0001] The invention relates to a motor test run method. Background technique [0002] At present, there are a large number of low-voltage (AC 380V) electric motor-type electrical equipment in the industrial field. According to relevant regulations, the following three test runs are required for this type of motor before normal use: (1) test run at the test position of the switch cabinet (drawer), (2) single machine test run at the working position of the switch cabinet (drawer) and (3) test run at the working position of the switch cabinet (drawer) ) working position linkage test run. Among them, the main purpose of the test run function at the switch cabinet test position is to detect the correctness of the control circuit action in the switch cabinet; the main purpose of the single machine test run function at the working position is to detect the on-off situation of the main circuit power supply, the rotation direction of the motor and the water cycle te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
CPCG01R31/343
Inventor 张驰陈河江田克岩钟振新李琦薛强余晓忠付钰冯丹宋昱
Owner SYNEFUELS CHINA