GARD: Detect Arc and Ground
Faults in Your PV Array;
Rapidly Disconnect PV Strings

Alencon’s Ground Arc and Rapid Disconnect unit, the GARD, is a unique solution for detecting harmful arc and ground faults in your PV array at the string level. The GARD also offers the ability to rapidly and safely disconnect PV strings with either a mechanical switch or remote command. The GARD can be deployed as a standalone device or in conjunction with Alencon’s String Power Optimizer and Transmitter – the SPOT. Additionally, the GARD can be used with or without remote communications. The GARD can be installed in new PV systems or as a retrofit to existing solar plants

ALENCON’S GARD OFFERS THE FOLLOWING FEATURES, BENEFITS AND ADVANTAGES:

ARC and Ground Fault Detection:

Benefits
  • Detect, identify and isolate ARC and Ground faults in a PV array to the string level
  • Easily correct faults while the rest of the PV system continues to produce power
Advantages
  • Improve system safety
  • Make O&M more efficient

Rapid Disconnect of PV Strings:

Benefits
  • Remote or manual rapid disconnect of PV strings
  • Simplify field service and O&M 
Advantages
  • Improve system safety
  • Easily deenergize PV strings in the array in a safe manner

Flexible Deployment Options:

Benefits
  • Install either in new systems or as a retrofit to existing systems
  • Powered by PV, does not require auxiliary power
  • Provides string level monitoring when deployed with ACE
Advantages
  • Cost effective solution for remediating hazards in existing PV arrays
  • Quicker install and less expensive than “smart combiners”

other products

SPOT
PV String-level DC-DC Optimizers
BOSS
Bi-Directional DC-DC Optimizers for Storage Systems
GrIP
10 Megawatt Harmonic Neutralization Central Inverter
ACE
Remote PV-IOT™ Hardware and Software