High Pressure Sodium Lamp Ballast Circuit

High pressure sodium lights are used for illuminating large outdoor areas.

High pressure sodium lamp ballast circuit.

It is very difficult to get any material which is free from corrosion in presence of sodium vapor in high temperature and pressure. Ignitors automatically remove themselves from the circuit once the arc is stricken by use of a bimetal switch. A very first appearance at a circuit diagram could be confusing however if you could review a subway map you can check out schematics. The lamp is an improvement over the lps lamp in that it has more acceptable color with the great efficiency of the sodium lamp.

Typically these lights are used on sides of industrial buildings and in some street lamps. Shop ballast magnetic core and coil quad high pressure sodium cwa circuit type 400w 1 lamp by ge lighting ges400mltaa4 5 at graybar your trusted resource for hid electronic and electromagnetic ballasts and other ge lighting products. In a high pressure sodium lamp a compact arc tube contains a mixture of xenon sodium and mercury. They emit bright yellow light.

Two varieties of such lamps exist. The xenon gas which is easily ionized facilitates striking the arc when. They are used for things such as security lighting. In 1959 the development of polycrystalline alumina pca opened a new path to introduce the high pressure sodium vapor lamp as this material is very rarely affected by high pressure and.

These types of lights are commonly found outside. Since high pressure sodium lamps have mercury and sodium inside it needs to utilize a high voltage pulse to ignite the lamp which the ignitor provides. 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. This is the main difficulty of producing high pressure sodium lamp.

A high pressure sodium ballast is responsible for regulating the pressure in light fixtures that use high pressure sodium gas to produce the light. High pressure sodium ballast wiring diagram a beginner s overview of circuit diagrams. The heavy duty transformer or ballast is also long lived if the bulbs are changed out before they burn out. Sodium bulbs can last up to 20 000 hours.

There is an ignitor built into the ballast which sends a pulse of high voltage energy through the arc. High pressure sodium lamp hps lamp the hps lamp is the most ubiquitous lamp for street lighting on the planet. 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.