Shore Power Supply

AP Series

The AP Series Shore Power Supply is a high-power inverter power supply specially designed for port and ship applications. It is engineered to operate reliably in demanding environments characterized by high temperature, high humidity, high corrosion, and significant load fluctuations.

The system is primarily used for shore-to-ship power supply and shipbuilding applications. After a vessel docks, its onboard generator can be switched to shore-based power, providing a stable power supply while reducing the need to operate the ship's generator.

The AP Series supports an input of 6–10 kV/50 Hz or 380 V/150 Hz and provides an output of 440 V/160 Hz, with power capacity of up to 5,000 kVA.

Input Frequency 50 Hz ±5 Hz
Output Frequency Stability ≤±0.1%
Rated Output Frequency 50 Hz / 60 Hz
Steady-state Load Voltage Regulation ≤1.5%

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Product Description

Key Advantages

01

Exceptional Overload Capability

The inverter section uses motor-specific power modules, specially designed for high-power motor loads. It provides minimal transient voltage variation, fast recovery, and strong starting capability, ensuring stable operation under demanding load conditions.
02

Intuitive Display and Easy Operation

The human-machine interface features a large touchscreen and an emergency stop button, providing a clear, user-friendly, and intuitive operating experience. Remote monitoring is also supported, allowing all operating data of the shore power supply to be displayed and stored on a remote monitoring computer.
03

Modular Design for Efficiency and Cost Savings

The rectifier and inverter sections adopt a modular design, offering a compact structure, reduced weight, and high efficiency. The inverter section consists of independent 250 kVA inverter units. If any individual unit fails, it can be isolated from operation without affecting the continued operation of the system, improving overall availability while reducing energy consumption and operating costs.
04

High Reliability and Easy Maintenance

The system features a well-designed structure for convenient maintenance and servicing. The system is developed using proprietary technologies, while key components are sourced from well-known international brands to ensure reliable and stable operation. Established procurement channels and short lead times help reduce maintenance and repair costs while enabling fast and efficient after-sales support.
05

Intelligent Temperature-Controlled Container

A high-protection-grade container is available as an option. The system automatically adjusts the speed and number of cooling fans according to the ambient temperature. This ensures effective heat dissipation while reducing unnecessary fan operation and extending fan service life.
06

Comprehensive Protection Functions

The AP Series incorporates comprehensive protection functions, including overvoltage, undervoltage, phase loss, overcurrent, short circuit, overtemperature, surge voltage suppression, grounding, and instantaneous current limiting, ensuring safe and reliable operation under various operating conditions.

Models & Specifications

Item	AP–200	AP–400	AP–600	AP–800	AP–1000	AP–1600	AP–2000	AP–2500	AP–3000
Rated power	200KVA	400KVA	600KVA	800KVA	1000KVA	1600KVA	2000KVA	2500KVA	3000KVA
Peak power	300KVA	600KVA	900KVA	1200KVA	1500KVA	2400KVA	3000KVA	3750KVA	4500KVA

Technical Specifications

Item	Specification
Product Model	AP‑400
Rated Capacity	400 kVA
Input
Input Voltage	3‑phase 3‑wire (Line‑to‑line voltage 380 V ±10%) + PE conductor
Input Frequency	50 Hz ±5 Hz
Output
Rated Output Voltage	3‑phase 4‑wire (Line‑to‑line voltage 440 V), customizable upon request
Steady‑state Load Voltage Regulation	≤1.5%
Rated Output Frequency	50 Hz / 60 Hz
Output Frequency Stability	≤±0.1%
Output Voltage Phase	120° ±2°
Output Voltage Waveform Distortion	Sine wave ≤3% (at rated voltage, resistive load)
System Efficiency	≥90% (at rated load)
Overload Capacity	100%‑105%: continuous operation 105%‑125%: 10 minutes 125%‑150%: 1 minute 150%‑200%: 5 seconds ＞200%: immediate protection
Control & Display
Control Method	IGBT / SPWM pulse‑width modulation
Operation Mode	Touch‑screen operation
Display Method	Input side: electrical parameter meter; Alarm messages & internal parameters: displayed via touch screen; Output side: multi‑function electrical parameter meter
Touch‑screen Display Resolution	4‑digit voltage display, resolution: 0.1 V 4‑digit frequency display, resolution: 0.1 Hz 4‑digit current display, resolution: 0.1 A 4‑digit power display, resolution: 0.001 kW
Protection
Protection Functions	Output over‑/under‑voltage, over‑current, over‑temperature and short‑circuit protection
Ingress Protection Rating	IP54 (container‑type unit); IP20 (indoor unit)
Environmental Conditions
Ambient Temperature	‑10 ℃ ~ +40 ℃
Relative Humidity	≤95%RH (no condensation)
Altitude	≤1000 m
Power‑frequency Withstand Voltage	AC 2000 V / 1 min (input / output to enclosure)
Cooling Method	Air‑conditioner and forced fan air cooling
Insulation Class	Class F
Hot‑state Insulation Resistance	＞2 MΩ
Noise Level	≤80 dB

Applications

Shipbuilding and Marine Industry
Port Machinery: Quay Cranes and Ship Loaders
Heavy-Duty Lifting Equipment: Large Bridge Cranes and Gantry Cranes
Motor Testing: Submersible Pumps and Air Compressors
Offshore Oil Platform Commissioning

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