GE GEK-106465A 用户手册

 

GEK-106465A 

CIO Remote CAN Digital I/O Module  

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Verify that the relay has not suffered any damage during transportation, and that all screws are correctly fixed, and all 
relay terminal boards are in good condition. 

All devices running on AC current are affected by frequency. As a non-senoidal wave is the result of a fundamental 
wave plus a series of harmonics from this fundamental wave, it can be deducted that devices running on AC current 
are influenced by the applied waveform. 

For a correct testing of devices running on AC current, it is fundamental to use a current and/or voltage senoidal 
waveform. The pureness of a senoidal wave (lack of harmonics) cannot be expressed specifically for a specific 
device. However, any relay incorporating sintonized circuits, R-L and R-C circuits, will be affected by non-senoidal 
waveforms.  

These devices respond to the voltage waveform in a different way to the majority of AC current voltmeters. If the 
power supply network used for the testing contains wide harmonics, the voltmeter and relay responses will be 
different. 

When the device is tested, a power supply network with no harmonics in its waveform must be used. 

It is important to point out that the accuracy with which the test is performed depends on the network and on the 
instruments used. Functional tests performed with unsuitable power supply network and instruments are useful to 
check that the device operates properly and therefore its operating characteristics are verified in an approximate 
manner. 

The following sections detail the list of tests for verifying the device functionality.