High Pressure Sodium Lamp Ballast Circuit

Robertson 3p10058 individual mhid 70 watt s62 high pressure sodium lamp 120vac 60hz normal ballast factor npf model blu0070a04900 m replaces model blu070a04900 4 4 out of 5 stars 16 31 95 31.

High pressure sodium lamp ballast circuit.

Typically these lights are used on sides of industrial buildings and in some street lamps. Sodium bulbs can last up to 20 000 hours. High pressure sodium lights are used for illuminating large outdoor areas. There is an ignitor built into the ballast which sends a pulse of high voltage energy through the arc.

They are used for things such as security lighting. High pressure sodium ballast wiring diagram a beginner s overview of circuit diagrams. A sodium vapor lamp is a gas discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm. A very first appearance at a circuit diagram could be confusing however if you could review a subway map you can check out schematics.

They emit bright yellow light. The lamp is an improvement over the lps lamp in that it has more acceptable color with the great efficiency of the sodium lamp. Ignitors automatically remove themselves from the circuit once the arc is stricken by use of a bimetal switch. Two varieties of such lamps exist.

They are also commonly found in an indoor garden setting. These types of lights are commonly found outside. A high pressure sodium ballast is responsible for regulating the pressure in light fixtures that use high pressure sodium gas to produce the light. The xenon gas which is easily ionized facilitates striking the arc when.

Low pressure and high pressure low pressure sodium lamps are highly efficient electrical light sources but their yellow light restricts applications to outdoor lighting such as street lamps where they are widely used. Note that due to the hps ballast s electronic starting circuit warm up and restrike periods are much shorter than those of metal halide lamps. The heavy duty transformer or ballast is also long lived if the bulbs are changed out before they burn out. High pressure sodium lamp hps lamp the hps lamp is the most ubiquitous lamp for street lighting on the planet.

It is very difficult to get any material which is free from corrosion in presence of sodium vapor in high temperature and pressure. This is the main difficulty of producing high pressure sodium lamp. In a high pressure sodium lamp a compact arc tube contains a mixture of xenon sodium and mercury.