Page 30 - North American Clean Energy July/August 2019 Issue

solar energy
Meeting rapid shutdown requirements of NEC 690.12 2017
Tigo announced the new Underwriter Laboratories (UL) certi cation of its Photovoltaic Rapid Shutdown Systems (PVRSS) based on the company’s TS4 Platform and PV inverters from Yaskawa Solectria Solar and Huawei. is UL certi cation is
part of Tigo’s multivendor initiative providing customers with
the advantages of reliable, safe, and cost-e ective solutions. e use of Tigo smart modules and high e ciency inverters allows design exibility for installers to comply with National Electric Code (NEC) 2017 690.12 RSS regulations. Tigo has also been internationally recognized as the only module-level power electronic vendor with UL-certi ed RSS with multiple PV module manufacturers. e following Yaskawa Solectria Solar inverters are UL listed as PV Rapid Shutdown Systems with Tigo’s TS4 units: PVI 23TL, PVI 36TL, PVI 50TL, PVI 60TL with rmware 9.0 or later, and XGI 1000 - 60/60. e following Huawei inverters
are UL-listed as a Rapid Shutdown System with Tigo’s TS4 units: SUN2000-33KTL-US, SUN2000-36KTL-US, SUN2000-40KTL-US, with SUN2000V200R002C20SPC105 rmware or later, SUN2000- 25KTL-US, and SUN2000-30KTL-US.
Tigo Energy /// www.tigoenergy.com
PV plant modelling software handles complex terrain
DNV GL’s SolarFarmer software for modelling, design,
and analysis of solar photovoltaic (PV) plants can accurately and e ciently handle the demands of layouts in increasingly complex terrain. DNV GL’s new SolarFarmer software can be used for conceptual and detailed design and analysis for solar PV plants. It combines thoroughly validated PV simulation algorithms with a user-friendly, modern user interface allowing quick con guration of PV plant designs and simulation of PV layouts. SolarFarmer o ers design and analysis of development of solar PV plants, from conceptual model to detailed solar plant design, an e cient and traceable method for modelling in complex terrain including a model for submodule electrical mismatch, an automated layout for xed tilt and trackers, and thoroughly-validated models for accurate energy production calculations. SolarFarmer engineers are working directly with DNV GL experts to improve modelling of components during the design phase, such as modelling for thin- lm modules. SolarFarmer also provides sub-hourly energy assessment calculations.
DNV GL /// www.dnvgl.com
Safety interlock switch
IDEC Corporation’s new HS1T interlock switch with solenoid delivers 5,000N
of locking force, with many features included to maximize protection in machine and equipment guarding applications. IDEC’s HS1T improves performance in a compact size due to a metal head integrating the locking and mounting functions. Also, to maximize installation options, the remaining actuator portion can be independently rotated from the high-strength head using only one screw. With a slim form factor and various mounting options, the HS1T can be installed virtually anywhere, providing flexibility for designers. IDEC has included three independent rotary cams. Two cams control the locking mechanism and
one drives the door monitor contact. This provides redundancy, additional strength, and ensures the monitoring function continues to work even
if a locking cam is damaged. The
HS1T meets the requirements of ISO 14119:203 for Lock Monitoring. For additional integrity, the lock monitoring contact can never indicate closed if the door is not positively closed, thereby preventing the associated machine from being turned on with risks exposed. The HS1T provides multiple available cable entry ports, with fast and reliable wiring connections made possible by spring clamp terminals. These connections offer vibration resistance, prevent
wires from loosening, and never need tightening. Spring lock or solenoid
lock styles are available, with several options for contact configurations. These flexible installation options are complemented by an IP67 and Type
4X indoor use only rating. An energy- efficient solenoid consumes 200mA while actuated, reducing electricity costs and allowing controls to activate the device directly without a relay.
IDEC Corporation
/// www.us.idec.com/HS1T
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JULY•AUGUST2019 /// www.nacleanenergy.com