Overview Features Technical Parameter Downloads

The ZG-SPS series is an intelligent high-voltage shore power solution specifically designed for port vessel berthing scenarios. It is independently developed and manufactured by Zhiguang, with frequency converters as the core technology. Its core function is to replace ship auxiliary engine power generation with clean shore-based electricity, achieving low-carbon, safe, and efficient port power supply. It is an important technological equipment for the green transformation of the shipping industry.

1.Reliable phase sequence detection and setting technology ensures safe grid-connected operation of the system;
2.Low voltage ride-through technology maximizes both power supply continuity and equipment safety;
3.High-precision voltage and frequency stabilization control technology achieves stable output voltage control;
4.Automatic synchronization ship-to-shore seamless switching technology ensures efficient and continuous power supply;
5.Smart microgrid distribution technology meets the needs of shore-to-ship power connection in various scenarios;
6.Output parameters: Output voltage harmonics <1%, load stability <1%, three-phase output voltage imbalance <2%; output frequency resolution 0.01Hz;

Technical Parameter

Input
Phase, Frequency: Three-phase: 50/60Hz
Allowed frequency fluctuations: -5 % ～ +5%
Input Voltage: Normal operation within -15% ~ +15%
Input power factor: >0.96 (overloaded at 20% capacity)
Recti?er circuit: 36 pulse wave (6 levels in series)
Input current harmonics：<3% (rated load)

Output
Overload capacity: Normal operation is possible for 60 minutes at 110% of rated output current based on the rated output current; inverse time limit protection at 200% and above output current.
Rated voltage/frequency：6kV/50Hz or 6.6kV/60Hz, 400V/50Hz or 440V/60Hz；Switchable with one click
Three-phase voltage unbalance：≤2%
Three-phase current unbalance：≤30% (Customizable for special requirements)
Load stabilization rate：Output voltage 6.6kV, when 0-100% load change
Output voltage stabilization rate: -1%≤static≤1%, -3%≤dynamic≤3%;
Output voltage
Harmonics (no load)：≤1% (filter state)
Output frequency：
Accuracy 0.01Hz
Output frequency 60Hz/50Hz, when 0-100% load change Output frequency change rate ≤0.1%

ZG-SPS Intelligent Ship Shore Power System