The safety of the solar street light controller of the largest solar street lamps

Solar side battery and load polarity reverse connect protection * 1 * 1 * 2 short circuit protection protect * 3 flow - immediately cut off - - - - - - - - Delay to cut off the reverse charging current protection - - - - - - - - Over voltage 40 v - the highest 55 v * 4 - - - Undervoltage - - - - - - - - Cut off the load thermal if the temperature is set to

solar end

the battery end loading end

reverse polarity connection

protect * 1

protection * 1

* 2 protection

short

protection

protect * 3

immediately cut off

over current

-

-

delay as

reverse charging current

protection

-

-

overvoltage

top 55 v * 4

top 40 v

-

under-voltage

-

-

to cut off the load

overheating

if the temperature reached set value, the controller will be to reduce the power operation.

note:

1. In 24 v system, if the polarity reversal at the battery or solar energy at one end, the controller may be damaged.

2。 Controller can protect themselves, the load is very likely to be damaged.

3。 We strongly recommend that connect the fuse before connect the battery and controller, otherwise the battery will be permanently damaged.

4。 The terminal voltage of solar energy can't long time higher than 55 v, because of the protection function is through the rheostat partial pressure on solar energy.

warning: two or more different error conditions exist at the same time, it may damage the controller. Therefore, before the next, must eliminate the existing problems.