Back to the startup systems. Star/delta (Y-D) is the most common system deployed in air compressors, or in industrial machines in general. It's simple, easy to understand, easy to troubleshoot and doesn't require expensive electronics. With Y-D starter we take advantage of the lower per-winding voltage when. .
Here we see a typical setup of a star-delta starter: *Typical setup of a star-delta starter. There are 6 cables going to the motor (white, at the bottom) .
The system always consists of 3 main contactors (big relais) in a typical configuration that is easy to recognize. The 3 contactors are: 1. Main/line contactor 2. Delta contactor 3. Star contactor
[pdf] Rotary screw air compressors work by trapping air between two meshed rotors and reducing the volume of that trapped air as it moves down through the rotors. This decrease in volume results in compressed air, which can be used to power pneumatic air tools, inflate tires and perform many other applications. .
Stellar Truck Mounted Rotary Screw Air Compressors boast many hardworking, long-wearing features: 1. Precision-engineered, rotary screw air-end is oil-injected to eliminate metal-to-metal contact of the two compressor screw lobes for continuous 100%. .
The advantages of rotary screw mobile air compressors over other types of compressors that can be mounted on service vehicles include: 1. Continuous airflow/100% duty.
[pdf] Air compressor overheating is the #1 cause of unexpected shutdowns during operation. Temperature sensors inside the air compressor monitor air intake and discharge temperatures as well as oil temperatures. In most industrial compressed air systems, the temperature sensor is wired to a thermal cutoff. .
Air compression generates a lot of excess heat — in fact, about 80% of the energy that is put into the compressor is lost to heat. Known as the. .
How can you tell if your air compressor is overheating? If the air compressor is running hot, you will probably notice that it is hotter than normal. .
Can you perform your own compressor repairs? It depends on the type of compressor and the capabilities of your in-house maintenance. .
Fortunately, air compressor overheating can almost always be avoided with proper maintenance and care. It is important to pay attention to the signs of overheating and fix them.
[pdf] 
