Sunpole Solar Power Supplies for Cathodic Protection by Farwest Corrosion

Reliable Electric Power for Cathodic Protection at Remote Sites
Sunpole Solar Systems

Sunpole is a ready-to-install pole-mounted solar power supply system with a 12V, 1A, rating (base configuration). It is shipped complete with temperature compensated charge regulator, crystalline solar panel, 12V lead-acid battery with a minimum of 100 hours autonomy (NiCad battery optional), heavy-duty polyethylene battery box, switching output controller with load drop for battery protection, heavy-duty steel pole with panel support, 1-1/2" x 60 anode(s), and wiring harness.

Sunpole was designed to provide the needed boost to areas where structure potentials don't quite reach protected levels. Installation is easy, and all required materials are provided.

  • No exposed wiring. Conduit and wiring access provided through structure.
  • Antitheft hardware provided for fastening components.
  • Easy-to-assemble and erect 10' steel support structure.
  • Painted steel enclosure, heavy duty,  for charge regulator, output control, and battery.
  • Hinged, lockable door with handle and locking hasp (standard).
  • All functions engraved into instrument panel.
  • Output ammeter (standard).
  • 50/50 charge current shunt (standard).
  • Copper compression lugs for battery, solar, and load connections.
     

Sunpole is available for:

  • Reduced Energy at Night (REN). This supply is designed to provide 100% of the daytime current rating during daytime solar energy periods and 1/2 of the daytime current setting to the ground bed at night.
  • Constant voltage output with continuous output adjustment of the voltage needed. Unit will provide this output for 24 hours a day.
  • Higher power output. Ratings are available from Farwest up to 2A at 12V or 24V.
     

For additional information, please see:
Solar Power Regulators & Controllers
& Solar Power Supply Components

 

Large Solar Systems

Extending the power grid to a remote site can cost in excess of $15,000 per mile. Solar power, with top quality, long-life components, is an alternative. Farwest's large solar power supplies are highly efficient, using top quality solar collectors, batteries, support structures, and charge/output controllers. The systems are supplied complete with all necessary components, hardware and wiring (field assembly required).

  • No exposed wiring.
  • Antitheft hardware provided for fastening of components.
  • Heavy-duty steel support structure is easy to assemble and erect.
  • Various heights available (10' pole height is standard).
  • Heavy-duty battery enclosure with plenty of room to make battery handling and maintenance as easy as possible.
  • Heavy gauge painted steel enclosure for charge regulator/output control.
  • Pad-lockable hasp and manual holder inside hinged lockable door.
     

For additional information, please see:
Solar Power Regulators & Controllers
& Solar Power Supply Components

Sidewalk Solar Systems
Model HCS-ORN

The HCS-ORN Sidewalk Solar System was designed for use in metropolitan areas for gas distribution and utility system protection where up to 1A of current is needed.

A spacious NEMA-3R enclosure houses the battery and controls. It has two doors with a three-point latch and locking hasp. The enclosure provides room for a large battery as well as test equipment. The solar panel is protected against vandalism and theft. 

Continuous potentiometer adjustment and solid-state circuitry are provided for fine current control. All functions are engraved into the instrument panel. A continuous reading voltmeter and ammeter are standard. Compression lugs are provided for battery, solar, and load connections.

Features of HCS-ORN Sidewalk Solar System:

  • Reduced Energy at Night (REN). This supply is designed to provide 100% of the daytime current rating during daytime solar energy periods and 1/2 of the daytime current setting to the ground bed at night.
  • Constant voltage output with continuous output adjustment of the voltage needed. Unit will provide this output 24 hours a day.
  • Charge regulator/output controller with load drop and temperature compensation.
  • Choice of batteries: 12 V NiCad battery for minimum of 48 hours of battery operation, or 12 V lead-acid battery for minimum of 100 hours of battery operation.
  • Enclosure measures approximately 48" tall by 36" inches wide 16" deep. Heavy-duty steel channel is provided for base mounting. Two-door enclosure includes screened louvers for ventilation.
  • Solar panel is a multi-crystalline type with better than 14% efficiency. It is completely surrounded by a metal frame, providing no external access. It is also protected from vandalism by a 1/4" thick Lexan window that covers the entire panel surface.
     

For additional information, please see:
Solar Power Regulators & Controllers
& Solar Power Supply Components

Water Tank Solar Systems
Model HCSVPW
  

The HCSVPW Water Tank Solar System was developed to provide cathodic protection for water tanks in remote areas. It features two independent controls, one for tank or bowl inside and another for tank bottom or riser protection. Constant voltage output control is provided for the bottom / riser circuit. Constant voltage or constant potential control is furnished for the tank / bowl circuit. This power supply is shipped complete and ready for field assembly.

Features:

  • Constant Voltage Control mode: In this mode of operation, the power supply output voltage is set by the operator and is held constant at the setpoint. The rectifier's output current changes as load resistance changes.

  • Constant Potential Control mode: The operator has the capability of setting the desired reference to structure potential over a wide range (0 - 2.5V). A permanent reference half-cell is required for the constant potential power supply to operate in potential control mode. The reference cell to structure potential is sensed by the controller and compared to the set potential programmed in by an operator. If there is a difference between the two, the power supply automatically adjusts its output to compensate for the difference.

Control Unit:

  • The HCSVPW has two separate controllable outputs, a constant voltage control for the tank bottom/riser circuit and a constant voltage or potential control for the tank inside / bowl circuit.
  • The water tank controller is a switching DC-to-DC converter. Both anode controls allow fine adjustment from 0 to rated voltage, so just the right amount of current can be applied to the tank / riser circuit and the tank inside circuit.
  • The charge controller is a precise regulator with voltage control and temperature compensation for battery protection. LEDs provide a visual indication of charge condition, base / riser voltage operation, tank voltage control, tank potential control, and load drop functions. Load drop removes the load from the system whenever the battery terminal voltage drops to a preset level and automatically picks up the load again once the battery has been at least partially recharged.

     

Structure:

  • Sturdy, ten-foot long steel support structures are provided with units requiring up to four solar panels. All necessary hardware, wire, and conduit are provided with each system. Theft resistant hardware is provided for all mechanical connections. The support structure is designed for easy field assembly and installation. Heavy gauge steel enclosures with hinged lids and sturdy lock hasps are provided for battery box and regulator - other materials are available as an option.

Solar Panels:

  • Efficient solar cells deliver superior watts per square foot of module surface area compared to competitive products. Reduced solar array area results in significant system cost savings.

  • Each solar cell is manufactured with a unique and proprietary bypass diode function that prevents power loss and undesirable heat generation if a module is temporarily shaded.

  • Crystalline solar cells, low iron, tempered glass front surface, EVA/Tedlar laminate, anodized aluminum frame.

Battery:

  • 100 hours of lead-acid autonomy is standard with lead acid battery units.

  • Standard lead-acid batteries are absorbed electrolyte type designed for solar application and carry a five-year warranty. Other battery types are also available.

  • Battery voltage matches or exceeds voltage rating of power supply.

Typical Ordering  Number: HCS  12 -  3 -  L  VP  W 

HCS - Water Tank Solar System
12 - Volt Rating
3 - Amp Rating
L - Lead Acid Battery
VP - Volt / Pot Control
W - Water Tank

 

For additional information, please see:
Solar Power Regulators & Controllers
&
Solar Power Supply Components