When a large number of drivers / LED bulbs are tested, some could be shorted from inside.
This can damage the electronics testing equipment.
The below illustration explains how to provide short circuit protection.
Image 1: Connection diagram of 5 Watt led bulb with testing equipment.
In the above example, a LED bulb is being tested. The power strip is used to power the DPA-1
(using the black power cord). Also, the Red/Black wire is used as input power for the LED bulb.
Image 2: Connection diagram of incandesent bulb with testing equipment.
We have provided short circuit protection by connecting incandesent bulb (100 W) in series, which has low resistance.
Image 3: Incandesent bulb connection
Have a closer look for the series connection on incandescent bulb
Image 4: Just see that we have shorted the load by wire. What happens?
Short circuit protection in led driver testing for 5 watt led bulb at 230 voltage. The Incandescent bulb lights up indicating a short to the operator
GOING INTO MORE TECHNICAL DETAILS……………..
example of short circuit protection for 5 watt led bulb connected to 230 voltage.
calculation of resistance for 5 watt led bulb and 200 watt incandenscent bulb in short circuit protecfor
5 watt led bulb testing at 400 voltage.for this problem we provide a circuit diagram in above page.