Marine Power

Marine Frequency Converters

Rapid Power... A World Leader in Frequency Converters, offers a Total Power Conversion System to the marine industry.

Rapid Power Technologies has produced thousands of frequency/power conversion systems in sizes from 7.5 kVA to 300 kVA. These installations are onboard and alongside, serving marine vessels and aircraft worldwide.

 

 

Rapid’s Total Power Conversion System (TPCS) is a digitally controlled power system that uses the latest power electronic methods to simplify the dockside power hook-up. The TPCS is a user-friendly system that has a very clean output waveform to the vessel, plus the TPCS produces very low harmonic distortion back into the marina power provider.

The heart of the TPCS is Rapid’s proven frequency converter product, developed to meet the nation’s most critical and demanding applications. Rapid’s magnetic division builds all the isolation power matching transformers to meet project performance and space criteria. A complete TPCS is assembled in a Rapid enclosure built to meet your vessel’s limitations. This in-house capability to engineer, design, manufacture, assemble and test the TPCS lets Rapid take full system responsibility thus insuring all systems meet your specifications.

The TPCS is your assurance of a power conversion system that will provide a simple hook-up anywhere in the world. This means that your yacht and all of its sophisticated equipment will receive the best available power in an uninterrupted manner when you arrive or leave port.

 

Marine Enclosures

Rapid will custom build any converter in any size enclosure in your choice of marine grade aluminum (standard), 316L stainless steel (optional> or powder coated steel (optional). All standard enclosures are NEMA 12 drip proof and are finished in your choice of high gloss Imron® enamel. Multiple enclosure systems are available where space limitations exist.

Compare These Features For Marine Power Conversion:

  • Frequency Converter - The frequency converter is a digitally controlled Insulated Gate Bipolar Transistor (IGBT) inverter of proven design. This engineered power system has an an integral overload capability to meet the marine duty. Most components are standard off the shelf items and are readily available throughout the world. These items are all standard stock at Rapid.
  • Automatic Input Voltage Select - Rapid’s converters automatically sense the dockside voltage and produce quality reliable regulated power for both frequency and voltage from any marina worldwide. Standard voltage range is 180 V to 520 V. Other voltage ranges are available.
  • Automatic Parallel System - Units can be paralleled for extra capacity, or for separate and multiple dockside power sources.
  • Automatic Generator Synchronization - Rapid units will digitally synchronize to and from the onboard generator seamlessly without any interruption of power to your sensitive equipment.
  • Low Input Harmonics - Rapid frequency conversion units are designed to minimize the harmonic distortion that is seen by the marina power provider. New installations or refits must consider this feature, as high harmonics may result in the marina having to disconnect your power supply.
  • Unbalanced Loads - Unit can withstand 100% unbalanced loading and still maintain output voltage to within ±3%.
  • Computer Control - These state of the art converters can be equipped with isolated analog and discrete signals to monitor virtually the entire converter system. This digital control makes remote monitoring easy with a simplified cable connection between converter and remote panel.

 

Electrical Specifications

Ratings:5 to 200 kVA (higher available upon request)
Input Voltage:180 VAC to 520 VAC
3-phase auto select option
100 VAC to 480 VAC single phase
Input Frequency:45 to 70 Hz
Input Power Factor:0.9 lagging
Output Voltage:3-phase 208V-575V any single phase 115V-480V
Voltage Regulation:±1% under any operating conditions
Output Frequency:50 or 60 Hz
Frequency Regulation:±0.05% under any operating conditions
Efficiency:Greater than 90%
Load Power Factor:0.8 Lag to unity at rated power
Overload:125% for 1 hour (Ratings are based upon 25% duty cycle)
150% for 1 minute
225% for 15 seconds
300% for 6 seconds
Output Harmonics:2% THD max

 

Mechanical Specifications:

Enclosure: Nema 12, Drip-Proof
Temperature Range:0°- 50° C
Enclosure Material:Marine grade aluminum (standard)
316L stainless (optional)
Powder-coated steel
Cooling:Forced air (water cooled optional)
Humidity: 95% RH

 

System Protection

  • Total electrical isolation, input to output
  • Input circuit breaker
  • Output circuit breaker
  • Under/over voltage, input and output
  • Mechanical interlock
  • Loss of phase
  • Overload
  • Over temperature
  • Complete digital diagnostic of system

Controls
  • Start pushbutton
  • Stop pushbutton
  • Alarm silence pushbutton
  • Alarm reset pushbutton
  • Load transfer pushbutton
  • Voltage raise/lower control
  • Test pushbutton

Indicators

Complete digital metering via 4x20 alpha numeric display with 16 keys and 8 LEDs, output ammeter, output voltmeter, elapsed time meter, and output frequency meter.

Light-Emitting Diodes

Input power, output power; TPCS Active; Interlock bypass; alarm; alarm silenced; master/slave

Certification

Built to ETL/UL specifications. Lloyd's Register, DUV and other international approvals upon request. ISO 9000 Certification is in process.

Quality

Rapid maintains an active QA and test department. This group insures that the product is fully documented, built, and tested in accordance with the engineered specifications of each project. This extensive pre-shipment attention and testing assures a smooth commissioning once installed in the vessel.