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Archive For: Motor Controls

Group Motor Protection | White Paper

Group Motor Protection | White Paper

Our Group Motor Protection White Paper explains how the usual way of preventing a small motor from drawing too much current is to install overcurrent protection in the form of a circuit breaker or some other kind of limiter. But installations that employ more than one motor might not want to use this approach. What’s Inside? By using ... Read More
 
Upgrading Pump Stations with PLCs

Upgrading Pump Stations with PLCs

When relays and timer circuits get old, they cause problems. Replacing them with PLCs keeps pumps running smoothly. One of the most important jobs of a water distribution system is to reliably deliver water to its customers. At our water district in California, we had pumping stations (Figure 1) with relay-based controls that were more ... Read More
 
Semiconductor Breakthroughs Promise Smaller, Faster Chips

Semiconductor Breakthroughs Promise Smaller, Faster Chips

Computer chips are always getting smaller and faster – right? Historically, this has been the trend. This trend was first observed by Intel co-founder Gordon Moore in 1965, and the term “Moore’s Law” was coined several years later. For over forty years this “law” has held, chips have gotten more complex, and transistors have shrunk ... Read More
 
How to Wire a Motor Starter

How to Wire a Motor Starter

The Technical Support page on the AutomationDirect website is full of valuable information and is available 24/7. The following is referenced from the Technical and Application Notes section. A motor starter is a combination of devices used to start, run, and stop an AC induction motor based on commands from an operator or a controller. ... Read More