The Problem Of Battery Electric Locomotive Lamp Burning Easily

The problem that the lamps of electric locomotive in underground coal mine are easy to burn:

If the underground mining locomotive is 48V DC, after charging, the voltage is very high, which will cause the lights to burn out, and the rectifier is only used for the AC circuit. First, the 48V battery is fully charged at about 55v, and the 48V bulb is easy to burn, so it will be much better to replace the 55v headlight.

Another way is to add a 12V converter, and then change the headlight to 12V bulb. The price of the underground mining locomotive converter is about 20 yuan, the input voltage is 36 to 60V, the output voltage is 12V, and the bulb will not burn again.