24 volt 20a solar mppt Panel Charge Controller regulator for solar street light

24 volt 20a solar mppt charge controller regulator for solar street light use

Quick Detail:

20a solar mppt charge controller
intelligent, Maximum Power Point Tracking function
multi-protect function

Specification:

Solar charge controller forms an essential component of virtually all solar power systems that utilize batteries. The charge controller is used to regulate the current flowing from the solar panels to the batteries. These solar controllers prevent the battery from the damages caused by overcharge and disconnect the battery in case of severe discharge by shutting of loads. Easy Photovoltech's solar charge controllers are specially designed to improve the battery performance and increase the life.

Key Features :

• A energy efficient controller for rural/urban solar charging system
• Low Power Load Controller and PWM solar charger in a single Unit
• Perfect solution for urban and rural requirements
• Keeps battery healthy for longer period
• Optimum utilization of Solar Power
• Optional Dawn/Dusk Operation with Timer
• Provision for Temperature Compensation
• Low PV to Battery Drop
• Easy Installation
• Simple Handling

MPPT technology introduction:

MPPT means maximum power point tracking. It makes the solar panels work at maximum point(ext Point B) by using power conversion technology. eMPPT is the new charge controller researched and developed by our company, and it uses the MCU to track the maximum power point of solar panels intelligently to generate more power from the solar panels. 

About MPPT Charging: Bulk charging, Absorption charging, Float charging

(1) Maximum Power Point Tracking technology

The controller uses Buck conversion circuit and MCU technology to track the maximum power point to implement the maximum output power of solar panels in different illumination intensity and temperature. The MPPT algorithm increases efficiency of your PV system and decreases the quantity of solar panels.

(2) Multi-stage Charge Control

The starting charging voltage of battery is different, the controller will use the different charging strategies to finalize the charging process. When starting charging voltage of battery is lower than 12.4V (for 12V battery), battery will go through three stages as Bulk, Absorption and Float charging. When starting charging voltage of battery is higher than 12.4V (for 12V battery), battery will go through two stages as Bulk and Float charging.

Bulk Charge, Absorption Charge, Float Charge.

(3) Charge Voltage Temperature-compensated

(4) Discharge Control

(5) Protection against Reverse Connected Battery

(6) Protection against Reverse Connected Solar Modules

(7) Reverse Current Protection

(8) Over temperature Protection

(9) PV Over voltage Protection

(10) Current-limited for Excessive Charging Current

(11) Load Output Overload Protection  
 

Protection against various parameters:

• Solar /battery reverse polarity.
• Reverse current flow battery to solar array during night
• Over charging current and short circuit.
• Output over voltage
• Excessive temperature of heat sink

TROUBLE SOLUTION:

Phenomenon:Green LED off, battery indicator LED is red. 
Reason: Low voltage of battery 
Solution: 
A:Cut off the power, disconnect the load; reconnect the load after the charge become normal. 
B:Battery charge problem: Increase the solar panel power or change the battery. 

Phenomenon:Battery indicator LED is orange and Load indicator LED is green, the loads cannot work. 
Reason:Over load or short-circuit causes the controller inner fuse cut off 
Solution: 10-20 minutes after eliminated the malfunction, the fuse will automatically back to working.