By using software to analyze the recorded data, you can reap the benefits of significant energy savings through proper load balancing and load scheduling.
Basically, these instruments split each phase voltage and current into three separate components: Peak demand is usually caused by a spike in power consumption, most often when multiple loads come on simultaneously. Consider repeating this on a seasonal basis, as power consumption requirements change. Identify the equipment creating the peak demand charges by observing excessive uses of active power kW.
That would be an unbalanced load and preferably avoided. Hide comments.
The electric utility must be capable of supplying this load, must size its distribution equipment accordingly, and will therefore charge the customer to be able to meet this need. The service comes from the utility via two ungrounded "hot" wires that carry 120 volts each, plus a single grounded "neutral" wire. This provides an accurate analysis of the ampere values that will flow in the circuit. After a power logging session, download the data to a PC and analyze. The wires connect to the home's service panel , and each hot wire provides 120-volt power to one of the two hot bus bars in the panel.
On the other hand, if you placed both circuits on the same leg of the panel, the loads of the appliances would add together, resulting in 15 amps of current returning on the neutral. Whether conducting an energy audit or troubleshooting to find energy losses, a typical power logging session should record several factors, including voltage, current, power trends, transients, and event logs. From there, the power goes back onto the utility grid via the utility service neutral.
Double-pole breakers take up two adjacent slots and connect to both legs. You can play a large role in reducing plant energy costs by setting up a power quality instrument to record needed voltage and power values. It is usually done by electricians when installing a new service panel breaker box , rewiring a house, or adding multiple circuits during a remodel.
Electrical Appliances. Power logging provides this opportunity. The leg or legs that each circuit draws from depends on where the breaker sits in the panel.
Most homes have a type of electrical service called single-phase, three-wire. The Importance of Provisional Power.
One circuit supplies a refrigerator that draws 8 amps; the other circuit supplies a chest freezer that draws 7 amps.
Set the averaging time in the power logger to 15 min.
Double-pole breakers typically range from 30 to 50 amps or more. To use this method, you measure the three phase-to-phase voltage readings AB, AC, BC , sum their values, and then divide by three to obtain the average voltage.
In addition to reducing energy costs through load balancing, you can also create immediate energy savings through load scheduling, which is the part of energy load management that minimizes demand. Even though noninductive load ratings are expressed in watts or in kilowatts, these wattage ratings can be considered the equivalent of the same rating in volt-amperes or kilovolt-amperes.