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Thread: 3 phase metering

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    3 phase metering

    the most common question i get asked about 3 phase meter..."do you save electricity if you balance a 3 phase system" in south africa this is a myth if you have a standard 3 phase meter being metered at residential rates...

    when it comes to smart meters for commercial and industrial installation it is a little more complicated.

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    Diamond Member AndyD's Avatar
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    Are you pointing out the dfferences in metering between kWh and kVArh?
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    no andy...i am merely stating that it is a myth that you save electricity if you balance your load ona 3 phase system for a domestic installation in south africa...i am still waiting for a response from the utility to verify this in writting...could take a couple more months

    i dont want to got into detail about smart meters...kva metering etc...thats a whole different ball game...for industrial and commercial customers...big money for all the sharks who know a little lingo about enregy saving and power factor correction...unless you use people who know what they are doing...like dudley stevens...chances are you could be in for a small fortune for a system which actually just cost money...because unless you install the the system correctly...it could actually start costing you more...like when you buy a car...do your homework on the maintenace cost...i have a customer who paid a company R100 000 for a ssytem to be installed...within 2 years R60 000 worth of the caps are already damaged...due to incorrect design....eeeeeish...instead of it saving money...the customer is in for another R100 000 to remove and replace the system...gona take 10 years to recover from that before he starts saving...chances are with the rate companies close down...the company will be closed or sold before he starts benefiting...unfortuntely this is a reality and the percentage of comapnies closing down is growing by the day...i am noticing a trend in the good quality services and product companies...because people want cheap junk.

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    murdock if you have a 3 phase kwh meter for residential use it is the same as having 3 single phase kwh meters,no diff. balancing the phases will only avoid overloading a phase causing overloadtripping of the circuit breaker! When it comes to 3 phase kVa metering then it becomes another ball game!

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