UL 1741 SUPPLEMENT SA 对并网逆变器增加无功支持功能 2016年09月07日, UL 1741 issued September 7, 2016版本正式发布。该标准在原来的基础上增加了SUPPLEMENT SA,明确通过了UL 1741SUPPLEMENT SA的逆变器用Grid Support Utility Interactive Inverters来区别传统的Utility Interactive Inverters。 该标准主要变更点包括: ...
这项新计划采用新的 UL 1741 Supplement A (SA) 标准,对逆变器和其它公用电网互联分布式发电设备用以实现更加智能和安全的响应式电网互联的电网支持功能进行测试和认证。 UL 副总裁,能源与电力科技部总经理Jeff Smidt表示:“限制用电或停电体现了公用电网不稳定所造成的深远影响。我们很高兴目前已发布 UL 1741 SA ...
The ANSI/UL 1741 standard has incorporated Supplement A (SA) to validate compliance for “grid support utility interactive inverters," inverters with grid interactive functions which are not covered under IEEE 1547 and 1547.1. In order to comply with the standard, manufacturers may need to ...
Example “Compliant with IEEE 1547a-2014 (Amd. 1)” or equivalent. Inverters that comply with the requirements of UL 1741 Supplement SA, as well as the requirements for a utility interactive inverters shall be marked “Grid Support Interactive Inverter“ or “Grid Support Utility Interacti...
1.1 revised November 7, 2005 1.1A For utility-interactive equipment, these requirements are intended to supplement and be used in conjunction with the Standard for Interconnecting Distributed Resources With Electric Power Systems, IEEE 1547, and the Standard for Conformance Test Procedures for Equipment...
174 UL 2238 CRD-2017 2017-12-29 English UL Standard for Safety Cable Assemblies and Fittings for Industrial Control and Signal Distribution - Section / Paragraph Reference: New Supplement SA Subject: Optional Short Circuit Rated Cable Assemblies and Fittings for Industrial Control a 175 UL 1203 BUL...
supplement and, in some cases, amend the requirementsin Sections 4 – 67.101.2 Products that combine multiple PV input circuits shall comply with the requirements in section 101– 107.101.3 Overcurrent protection within a PV circuit combiner unit shall have a voltage rating not less than the...
174 UL 2238 CRD-2017 2017-12-29 English UL Standard for Safety Cable Assemblies and Fittings for Industrial Control and Signal Distribution - Section / Paragraph Reference: New Supplement SA Subject: Optional Short Circuit Rated Cable Assemblies and Fittings for Industrial Control a 175 UL 1203 BUL...
182 UL 1741 CRD-2019 2019-10-22 English UL Standard for Safety Inverters, Converters, Controllers and Interconnection System Equipment for Use with Distributed Energy Resources - Section / Paragraph Reference: Supplement SA sections SA17 and SA18 Subject: Grid Support Utility Intera 183 UL 9540 BUL...
256 UL 588 CRD-2018 2018-12-03 English UL Standard for Safety Seasonal and Holiday Decorative Products - Section / Paragraph Reference: Supplement SD3.3 Subject: Minimum Number of Lamps in String Lights for All-Year Use - Edition 19: October 26, 2015 257 UL 1069 BULLETIN-2018 2018-11-30 ...