Lighting terminology

Panasonic.net

Some of the terminology used in lighting practice and analysis, and in studying the environmental effects of light, are not commonly used elsewhere, or have different meanings when used in this context. Some terms are commonly used when talking about lighting practice, but have different meanings to different people; this is a frequent source of talking cross-purposes in our field.

Corona Phenomena

The electric transmission grid represents a network that serves to the transmission and the interregional exchange of electric energy.

Within the transmission network is made an energy balance that takes into account the network losses.

System losses are:

• Power losses (ΔP) represent the consumption of electric power necessary for the transmission of electricity and for the distribution process;

• Energy losses (ΔW) represent the consumption of electric energy necessary for the transmission of electricity and for the distribution process;

Soft Starter

Schneider softstarter

Motors that run typical industrial applications employing conveyors, pumps, blowers, and compressors all have one common quality ,  they draw a large amount of current when they start up, perhaps six times what they draw during normal operation. This level of current can stress motor components and cause power quality issues on plant electrical systems, particularly for larger motors of 1 hp or more. That is why motors of this size frequently employ soft starting.