Floating Neutrals??
Doug Hogarth UHK
Training & Management?of successful ESTIMATING processes of patented software that facilitates time efficient & succinct ESTIMATING valuations for all Telecommunication & Electrical Contractors??"BUILDING REPUTATIONS"??
Have you ever been caught in a dispute between two (2) Electrical Contractors in conflict over the installation quality, method and operating performance of a Generator???
It's a difficult place to be???
What's going on if you record fluctuating voltages between 0Volts - 440Volts on single phase generator sub circuits???
What's at Stake???
According to Contractor "A" the installation and performance of the Generator was SATISFACTORY.
According to Contractor "B" the installation and performance of the Generator FAILED.
So convinced was Contractor "A" that the installation and performance of the Generator was SATISFACTORY that he instructed his staff to supply and install a Data Logger to record site electrical metrics under load operation for a site meeting of Generator and Laboratory representatives to finalise the CONFLICT between the two??
As arbitrator and in preparation for the site meeting, I decided to attend the site early to check the Data Logger and installation for myself??
To my HORROR I discovered varying single (1) Phase circuit voltages from 0Volts - 440Volts were being recorded??????♂???♀???♂???♀?
A quick inspection of the installation revealed a Floating Neutral??????♂???♀???♂???♀?
Under this condition three (3) phase 440Volt balanced loads will be unaffected, however, the single (1) Phase 230V loads will be in serious trouble and subjected to significant circuit voltages from 0Volts Min - 440Volts Max??
With a "HEALTHY POWER SYSTEM" you can expect~;
With a "FLOATING NEUTRAL (UNHEALTHY) POWER SYSTEM" and subject to load, you can expect~;
So, be careful with a Floating Neutral, it can KILL YOU, damage and destroy your equipment??
In the end, there was nothing for me to ARBITRATE, the results of the Data Logger sealed the fate of Contractor "A"??????♂???♀???♂???♀?
He was very lucky it only cost him his CUSTOMER, REPUTATION, EGO and a reasonable COMPENSATION CLAIM??????♂???♀???♂???♀?
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Thankfully, no one was injured or KILLED??
So how important is the need to TEST - TEST then TEST AGAIN!????????
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