Switches Sockets Plugs

The switches, sockets and plugs in a low voltage systems must have low loss (i.e. low resistance) just like every other component in the system. We can assure low loss in these components by two techniques. The first is to purchase specialized low voltage switches, sockets and plugs. These components have more massive contacts, with higher contact pressures, to deliver low resistance. These components are expensive and hard to find. Another technique is to use standard 120 VAC components and to...

So Lets Change

Clearly the world needs a new blueprint for development and change. Alternative energy is definitely part of this new blueprint. At least, there is now some groundwork in this field that proves its viability . This, alone, is an accomplishment. This magazine will help in a technological and philosophical exchange of ideas. Home Power is a forum for small scale alternative energy. Right now there is no other publication that seriously addresses the requirements and interests of people involved...

Things that Work

We tested the 1512 at our site located about 12 miles from any commercial utilities. This place has been totally powered by alternative energy since 1976. Photovoltaics and motorized generators (both 12 VDC and 120 VAC) are the power sources. We hooked the 1512 inverter to 2 Trojan L-16W batteries (350 ampere-hours at 12 volts) for the test period. The 1512 was wired to the batteries with 0 gauge copper cables with a combined length of less than 6 feet. The inverter is used to power a variety...

Power Conversion

The Pryor's are using a Trace 1512 inverter with built-in battery charger. This inverter converts the DC energy produced by the PVs and stored in the batteries into conventional 120 VAC, 60 cycle house power. It has a rating of 1,500 Watts output. John purchased the built-in battery charger even though he now lacks the 120 VAC powerplant necessary to drive it. John is looking forward to the day when he will have a large AC generator to handle periods unusual power consumption. The Trace...

Expanded Scale Analog Battery Voltmeter

This metering circuit was developed by Electron Connection Limited for its customers. While Electron Connection encourages you to build this circuit for your own use, we do reserve all commercial rights to this design. The idea is to use an analog dc ammeter in a circuit that will accurately measure the batteries voltage. This circuit produces an expanded scale voltmeter. Most analog voltmeters start reading a 0 volts. This is really a waste for battery systems as a lead acid battery will have...

Type and Size of Alternator

Just about any automotive alternator will work in these systems. What really counts is the size of the alternator. Its current output (amperage rating) should be sized to match the capacity of the battery pack. The more capacity the battery pack has the bigger the alternator which charges it must be. The alternator must be able to deliver at least a C 20 rate of charge to the batteries. We have had good results with 35 ampere Delco alternators for battery packs under 700 ampere-hours. Batteries...

Car Voltage Regulators

Car voltage regulators will not work well in deep cycle applications. The regulator makes its decisions based only on the system's voltage. This is fine with the average car battery which is cycled to less than 1 of its capacity before being refilled. The deep cycle battery, however, is almost empty when it is recharged. The car voltage regulator attempts to instantly bring the system's voltage to about 14 volts. A 12 volt deep cycle lead-acid battery will not reach a voltage of 14 volts until...

Its Happening

SunAmp Power Company will be holding PV seminars Feb. 19-20, Mar. 20-21, at the SunAmp offices in Scottsdale, Arizona, USA. Cost of the seminar is 145. For Additional info contact SunAmp, POB 6346, Scottsdale, AZ 85261, or call 602-951-0699. We encourage you to write your questions and remarks to Home Power Magazine. We will do our best to see that they are answered and published. So go ahead air your views on AE. We're all listening. Thanks for sending me the first issue of Home Power I would...