Microgrids - Part 3-3: Technical requirements - Self-regulation of dispatchable loads
IEC TS 62898-3-3:2023 deals with frequency and voltage stabilization of AC microgrids by dispatchable loads, which react autonomously on variations of frequency and voltage with a change in active power consumption. Both 50 Hz and 60 Hz electric power systems are covered. This document gives requirements to emulate the self-regulation effect of loads including synthetic inertia.
The loads…
Communication networks and systems for power utility automation - Part 90-27: Use of IEC 61850 for t...
IEC TR 61850-90-27:2023, which is a Technical Report, is to provide basic aspects that need to be considered when using IEC 61850 for information exchange between systems and components to support applications for thermal systems connected to electric power networks. Thermal systems isolated from electric power networks are outside the scope of this document.
From the perspective of category,…
General requirements for the payload interface of civil unmanned aircraft systems
This document specifies the composition, functional and performance requirements for a payload interface of civil unmanned aircraft systems (UAS), with the maximum take-off mass of 0,25Â kg to 25Â kg which relates to level II through IV according to ISOÂ 21895.
This document is applicable to the design and manufacture of physically independent payload interfaces which connect an external payload to…
1 Scope
1.1 Applicable equipment
1.1.1 Specific heaters
This Standard applies to newly produced, direct-fired and indirect-fired construction heaters, hereinafter referred to as heaters, constructed entirely of new, unused parts and materials and primarily intended for temporary use in heating buildings or structures under construction, alteration, or repair. Products of combustion generated…
1 Scope
1.1
This Standard applies to deadfront indoor enclosed and outdoor enclosed assemblies of switchgear devices such as
a)
switches;
b)
interrupting devices;
c)
air circuit breakers;
d)
power circuit breakers; and
e)
control, metering, protective, and regulating equipment with associated interconnections and supporting structures.
1.2
This Standard covers equipment with a…
1 Scope
1.1
This Standard applies to extra-low-voltage landscape lighting systems and associated components that are intended for cord-connected, direct plug-in, or permanent connection to a branch circuit of not more than 150 volts-to-ground in accordance with the Canadian Electrical Code, Part I.
1.2
This Standard only covers extra-low-voltage landscape lighting systems where the maximum…
Quick-disconnect devices for use with gas fuel appliances
1 Scope
1.1 Inclusions
This Standard applies to newly-produced, hand-operated quick-disconnect devices, sizes NPS 1/8 in to 1-1/2 in, hereinafter also referred to as devices, constructed entirely of new, unused parts and materials which provide a means for connecting and disconnecting appliances or appliance connectors to gas supplies, and which are for indoor and outdoor applications. These…
Small medical gas cylinders — Pin-index yoke-type valve connections
This document is applicable to pin-index yoke-type valve connections for medical gas cylinders, with a working pressure up to a maximum of 200Â bar or test pressure up to a maximum of 300Â bar, or both.
NOTEÂ 1Â Â Â Â Â Â Â This type of connection is primarily used for small cylinders (5Â l or below).
NOTE 2       In this document the unit bar is used, due to its universal use in the field of technical…