Marine Charger (Machine) Function
Purpose and Performance
It mainly converts the ship's AC single-phase 220V or three-phase 380V into DC through a silicon rectifier device, and charges the battery (group). The input voltage and output rated voltage and rated current of the charger are generally selected according to the specifications. Design and manufacture according to user requirements.
The charger is allowed to work continuously, the rectifier is cooled by natural air, and the protection level is IP23.
The output voltage of the charger can be divided into two types: stepwise voltage regulation and stepless voltage regulation. There are A: silicon rectifier type, B: magnetic saturation type, C: switch value type, D: imported charging module type, C. D type can meet the The function of constant voltage and current limiting can be used as a regulated power supply.
Model meaning Model meaning

JNCNDD is a switching power supply type multi-functional charging power supply composed of high-frequency PWM pulse width modulation technology and IGBT, FET and pulse width modulation integrated controller as the main components.
It saves the bulky and noisy power frequency transformer, so that the weight of the whole machine is only one quarter of that of the thyristor charging power supply, and the weight of the 3KW JNCDND charging power supply is 8 kg. The power supply is provided with multiple functional modules, and the whole machine adopts intelligent cooling, which can ensure the reliable operation of the power supply even in the highest temperature cabin. JNCDND series power supplies meet various rules and regulations of China Classification Society, and meet the basic standards of marine electrical and regulations.
This charging power supply is a three-stage automatic charging power supply (constant current equalization charging - constant voltage equalizing charging and floating charging) as shown in the figure below. The whole process of charging the battery is to enter the equalizing charge first, and automatically complete the constant current first, then the constant voltage. When the current drops to close to zero, the equalizing charge is completed, so that it (manually and automatically) is transferred to "floating charge" to trickle the current. Keep the battery fully charged.
The detailed process of paint charging is as follows:

The main purpose
It is suitable for various offshore platforms, ships, and provides stable and reliable charging for various batteries on board.
FeaturesFunction
1. With input over and under voltage protection and output over current and short circuit protection (only for models above 2KW) . .
2. Input voltage form, single-phase 110V to 380V or three-phase 220V to 440V.
3. Applicable battery capacity from 80AH to 2000AH or higher.
4. Three-stage charging is adopted, and the charging mode is automatically converted.
5. Applicable to any kind of battery.
6. The battery charging in different environments can be equipped with a charging voltage and temperature compensation function module.
7. A variety of functional configurations can be selected to meet different functional requirements.
8. The external dimensions are flexible and can be used for assembly in the charging and discharging board.
9. When the charging power supply charges the battery and supplies power to the load, the power supply will automatically turn into a regulated power supply after the battery is fully charged.
10. The output voltage and output current can also be adjusted manually.
Main technical indicatorsTechnical parameter
1. Input voltage: AC110V+15% ; AC220V+ 20% ; AC380V+ 20% ; AC440V+15% (single-phase or three-phase for each input voltage)
2. Voltage regulation accuracy: s1%
3. Constant current accuracy: ≤1%
4. Output voltage ripple: Vp-p≤1%
5. Output rated voltage: DC12V, 24V, 48V, 110V, 220V (optional)
Float voltage of each battery: 13.2V ; Average charge voltage: 14.1V
6. Output rated current: 10A, 20A, 30A, 40A, 60A, 80A, 125A, 150A, 200A(optional)
7. Working efficiency: ≥85% (rated test)
8. Working hours: long-term
9. Cooling method: air cooling
10. Protection class: IP20 or IP22. IP44 products comply with the relevant regulations of GB7061-98 "General Technical Specifications for Marine Low-voltage Switchgear and Control Equipment" and GB/T14545-93 "General Technical Conditions for Marine Semiconductor Converters", The relevant provisions of the Rules for Classification of Sea-going Steel Ships.
11. Protection functions: input overvoltage and undervoltage protection (optional); output overvoltage and undervoltage protection; output overcurrent and short circuit protection; overheating protection.
Environmental Conditions
Operating temperature: -10°C~55*C
Storage temperature: -40°C-85*C
Relative humidity:≤90% ( 40+2*C )
Atmospheric pressure: 70~ 106Kpa
Heel: +15°
Trim:±5°
Roll: +45° (period 5 ~12AS )
Pitch: +10° (Period 5~7S )
Cooling method: air cooling