Panasonic
Solar Cells Handbook, Page 35
August 1998
11. OVERCHARGE PROTECTION CIRCUITS: DISTRIBUTION PANELS
Suitable for highly reliable power supplies
11.1.
General Information
The "overcharge protection units" consists only of
overcharge protection circuits configured as a unit.
Being relatively low-cost, the unit is ideal for systems
which do not require testing.
These distribution panels distribute the power generated
by solar modules to storage batteries and loads. The
measuring circuitry provided makes it possible to test
the output current, output voltage, storage battery
voltage and load current of the solar modules. The
panels are also provided with overcharge prevention
circuits to protect the storage batteries from
overcharging.
11.2 Features
•
Excellent reliability.
•
Low current consumption.
•
Lightweight
•
Easy wiring and operation
11.3
Specifications
Overcharge protection unit
Model No.
Storage battery used
Operating
voltage (V)
Return voltage
(V)
Maximum allowable
input current
External view and
parts diagram No.
BP-H3CCUL
Lead storage battery *
Alkaline storage battery
14.5 15.5
13.5 14.5
3
7
BP-H10CCUL
10
8
Discharge protection unit
Model No.
Type of Battery
Used
Overcharge
Protection
Circuit
Operating
Voltage (V)
Overcharge
Protection
Circuit
Restore
Voltage (V)
Overdischarge
Protection
Circuit
Operating
Voltage (V)
Overdischarge
Protection
Circuit
Restore
Voltage (V)
Maximum
Allowable
Input
Current (A)
External View
and Parts
Diagram No.
BP-CD10A12V
Lead storage battery
14.5
13.5
10.8
12.8
10
9
Measurement Items and meter full-scale levels
Model No.
Measurement items and meter full-scale levels
Maximum
allowable
input
current
External view
and parts
diagram No.
Solar modules
output current (A)
Solar modules
output voltage
(V)
Load
current (A)
Awaited
current (mA)
Storage
battery
voltage (V)
BP-H3RCL
3
30
10
60
30
3
10
BP-H10RCL
10
30
30
600
30
10
11
* The suffix “L” is eliminated from model numbers when lead storage batteries aren't used for
distribution panels equipped with an overcharge protection circuit or for overcharge protection
units.