## L-L and L-N voltage

In an electrical system, there are two ways to measure voltage: line-to-line voltage and line-to-neutral voltage. Here is the difference between the two: What is line to line voltage? The LL voltage is the electrical potential difference that exists between two phases of a three-phase or two-phase system. It is measured between two conductors (or phases) of …

## Fahrenheit in celsius chart

Fahrenheit Celsius Observation -459.67°F -273.15°C Absolute zero, the coldest possible temperature -418°F -250°C Temperatures found in cryogenic applications -376°F -226.7°C Boiling point of neon -362°F -219.0°C Boiling point of hydrogen -356°F -215.6°C Boiling point of helium -320.8°F -196°C Boiling point of liquid nitrogen -297.4°F -183°C Boiling point of liquid oxygen -238°F -150°C Temperatures found in …

## Formula to convert kVA to kW, single-phase, two-phase and three-phase

We will thoroughly analyze the formula from kVA to kW, clearly defining what each variable that composes it means, how they interrelate and what is the difference between them. The formula used for the conversion of kVA to kW is as follows: With this formula you can manually convert from kVA to kW, however if …

## Typical common efficiencies of electric motor ODP and TEFC

NEMA Design B Electrical Motors Efficiency Electrical motors constructed according NEMA Design B must meet the efficiencies below. Power (hp) Minimum Nominal Efficiency1) 1 – 4 78.8 5 – 9 84.0 10 – 19 85.5 20 – 49 88.5 50 – 99 90.2 100 – 124 91.7 > 125 92.4 1) NEMA Design B, Single Speed 1200, …

## The power factor values ​​for the most common equipment and appliances

The power factor is the ratio between the “useful” working power kW and the apparent power kVA, this measures the efficiency with which electric power is used and is related by this formula fp = kW / kVA. A high power factor allows efficient use of energy, while a low power factor indicates poor utilization …