Oil and Gas Energy Power Conversion Solutions

Schaefer’s diverse product line offers a variety of solutions for the oil and gas energy industry. Oil and gas applications depends on a stable and reliable power source that is imperative for successful operation. Any system downtime due to power failures or even negligible disruption in the power supply can have severe consequences.

Oil and gas production sites are among the harshest and most hazardous environments in the power supply industry. Schaefer’s unique design and manufacturing processes enable the flexibility of conversion from input to output over a wide range of, and easily support, custom solutions requiring thousands of AC or DC volts. From our Active Harmonic Filters (reducing harmonics, rebuilding distorted three phase currents, correcting Power Factor, and balancing 3-phase currents), Energy Storage Systems to our PowerStack Series @ 97% Efficiency (400Kw to 10MW+) our robust designs ensure long-life reliable operation in even the most demanding conditions.

Our electrical and mechanical engineering teams are true industry craftsmen. As a standard option, we can build a majority of our COTS power converters into sealed high IP rated enclosures with increased mechanical strength and hermetically sealed connectors. These rugged designs can handle extreme shock, vibration, temperatures and altitude changes. We offer reliable cooling options that include fan, air or liquid cooled power supplies that are designed and manufactured to comply with all of today’s oil and gas industry standards.

  • Bidirectional units/systems are designed with the latest switching technologies (Newest IGBT’s to Silicon Carbide)
  • Buck, boost, or isolated topology
  • DC/DC, DC/AC, AC/DC or AC/AC
  • Custom solutions, typically with no NRE
  • Ultra-wide input ranges to handle extremes, including the 74VDC bus, even during start-up conditions
  • High efficiency for lower cost of ownership
  • Hermetically sealed solutions
  • High efficiency power conversion Units/systems (97% efficiency on the PowerStack series)
  • Natural convection or water-cooled solutions
  • Extra rugged construction for use in the most demanding and harsh conditions
  • Redundant configurations for longer life operation in critical applications
  • Ultra-wide temperature ranges
  • Reverse polarity protection option
  • Lightweight, high power density for smaller package designs or compact portable applications

To ensure a high reliability and quality of our power supplies, they have to pass through internal testing for high industrial requirements. Furthermore, they can be tested against increased shock and vibration resistance, as well as extreme environmental conditions. All components are selected according to criteria of durability, availability and performance. According to customer requirements national and international standards can be tested in cooperation with external laboratories.

  • EN 50178
  • EN 60664-1
  • EN 60950-1
  • EN 61000-6-2
  • EN 61000-6-4
  • EN 55011 / EN 55022 class A
  • EN 61140

By default, all devices are designed with electronic current limiting, overvoltage protection and continuous short circuit protection. Optionally, the modules can be expanded as follows:

  • Inrush current limiting
  • Reverse polarity protection for DC input
  • Decoupling diode for redundant / parallel operation
  • Active current sharing for parallel operation
  • Hot-pluggable solutions
  • Monitoring of input and output voltage
  • Output programmable
  • Power factor correction (PFC) for single phase input
  • Temperature compensated charging voltage
  • Automatic / manual selection of charging characteristics
  • Remote ON / OFF (inhibit)

By default, all modules will be offered as a 19″ module or 19″ sub-rack according to IP20.  Optionally, the modules can be expanded as follows:

  • Wall mount, chassis mount, DIN-rail mount, 19″ rack or customized design
  • Fan or liquid cooled
  • Mating connectors, wiring and monitoring instruments in accordance to the customers’ requirements
  • Digital or analog V- and A-meters
  • Monitoring & programming via potentiometer, analog signals or RS232 / IEEE488 interfaces
  • Designed for a high level of shock and vibration
  • Tropical protection finish on all circuit boards and components to ensure an increased protection category to protect the module from extreme climatic conditions
  • Robust enclosure that can withstand wind, sun, salt water, dirt or dust.
  • Hermetically sealed enclosure for high protection category
Product Features
  • Bidirectional units/systems are designed with the latest switching technologies (Newest IGBT’s to Silicon Carbide)
  • Buck, boost, or isolated topology
  • DC/DC, DC/AC, AC/DC or AC/AC
  • Custom solutions, typically with no NRE
  • Ultra-wide input ranges to handle extremes, including the 74VDC bus, even during start-up conditions
  • High efficiency for lower cost of ownership
  • Hermetically sealed solutions
  • High efficiency power conversion Units/systems (97% efficiency on the PowerStack series)
  • Natural convection or water-cooled solutions
  • Extra rugged construction for use in the most demanding and harsh conditions
  • Redundant configurations for longer life operation in critical applications
  • Ultra-wide temperature ranges
  • Reverse polarity protection option
  • Lightweight, high power density for smaller package designs or compact portable applications
Engineering Standards

To ensure a high reliability and quality of our power supplies, they have to pass through internal testing for high industrial requirements. Furthermore, they can be tested against increased shock and vibration resistance, as well as extreme environmental conditions. All components are selected according to criteria of durability, availability and performance. According to customer requirements national and international standards can be tested in cooperation with external laboratories.

  • EN 50178
  • EN 60664-1
  • EN 60950-1
  • EN 61000-6-2
  • EN 61000-6-4
  • EN 55011 / EN 55022 class A
  • EN 61140
Electrical Features

By default, all devices are designed with electronic current limiting, overvoltage protection and continuous short circuit protection. Optionally, the modules can be expanded as follows:

  • Inrush current limiting
  • Reverse polarity protection for DC input
  • Decoupling diode for redundant / parallel operation
  • Active current sharing for parallel operation
  • Hot-pluggable solutions
  • Monitoring of input and output voltage
  • Output programmable
  • Power factor correction (PFC) for single phase input
  • Temperature compensated charging voltage
  • Automatic / manual selection of charging characteristics
  • Remote ON / OFF (inhibit)
Mechanical Features

By default, all modules will be offered as a 19″ module or 19″ sub-rack according to IP20.  Optionally, the modules can be expanded as follows:

  • Wall mount, chassis mount, DIN-rail mount, 19″ rack or customized design
  • Fan or liquid cooled
  • Mating connectors, wiring and monitoring instruments in accordance to the customers’ requirements
  • Digital or analog V- and A-meters
  • Monitoring & programming via potentiometer, analog signals or RS232 / IEEE488 interfaces
  • Designed for a high level of shock and vibration
  • Tropical protection finish on all circuit boards and components to ensure an increased protection category to protect the module from extreme climatic conditions
  • Robust enclosure that can withstand wind, sun, salt water, dirt or dust.
  • Hermetically sealed enclosure for high protection category

New Literature

Active Harmonic Filter
High Voltage & High Current
Liquid Cooled
IP65 rated
560 to 690Vac three phase systems
140A AHF pluggable modules (4 per system) = 560A per cabinet
Secondary cooling loop
Ideal for Oil Platforms and 600VAC power systems/grids

COTS, Modified COTS and Full Custom

With nearly 50 years of experience and thousands of custom designed power products, you can rely on Schaefer’s engineering and manufacturing expertise for your specific application needs. Our COTS power converters can be built into sealed high IP rated enclosures with increased mechanical strength and hermetically sealed MIL connectors. We can optimize our standard products by installing them into custom enclosures and adding meters, switches or any other functionality you require, with little or no NRE!

Research and testing are provided for:

  • Thermal Analysis
  • FMECA
  • Halt
  • Hass
  • Loop Stability/Optimization
  • MTBF, FIT, PDR, and CDR

Schaefer’s electrical and mechanical engineering teams are true industry craftsmen, contact us to discuss your shipboard and subsea power supply requirements or to request a quote.

Latest Projects

Additional Examples of Schaefer’s Custom Power Solutions

Our experienced engineering and manufacturing team has delivered over 2,000 custom power solution products. To learn more about our custom solutions click on the button below.

Menu