Description

BS PD IEC/TS 62257-9-1 – Recommendations for renewable energy and hybrid systems for rural electrification

BS PD IEC/TS 62257-9-1:2016 Decentralized Rural Electrification Systems (DRES) are designed to supply electric power forsites which are not connected to a large interconnected system, or a national grid, in order tomeet basic needs.

The majority of these sites are:

isolated dwellings;
village houses;
community services (public lighting, pumping, health centres, places of worship or culturalactivities, administrative buildings, etc.);
economic activities (workshops, micro-industry, etc.).

The DRESs fall into the following three categories:

process electrification systems (for example, for pumping);
individual electrification systems (IES) for single users;
collective electrification systems (CES) for multiple users.

Process or individual electrification systems exclusively consist of two subsystems:

an electric energy generation subsystem;
the user’s electrical installation.

Collective electrification systems, however, consist of three subsystems:

an electric energy generation subsystem;
a distribution subsystem, also called microgrid;
user’s electrical installations including interface equipment between the installations andthe microgrid.

This technical specification applies to a micropower plant which is the electric energygeneration subsystem associated with a decentralized rural electrification system.

It provides general requirements for the design, erection and operation of micropower plantsand general requirements to ensure the safety of persons and property.

The micropower plants covered by this specification are low-voltage a.c., three-phase orsingle-phase, with rated capacity less than, or equal to, 100 kVA. The rated capacity is at theelectrical output of the micropower plant, that is, the upstream terminals of the main switchbetween the micropower plant and the microgrid. They do not include voltage transformation.

Cross References:
IEC 60364
IEC 60364-5-53:2001
IEC/TS 62257-2:2015
IEC/TS 62257-4:2015
IEC/TS 62257-5:2015
IEC/TS 62257-6:2015
IEC/TS 62257-7-1:2010
IEC/TS 62257-7-3:2008
IEC/TS 62257-9-2:2016s
IEC/TS 62257-9-4:2016
IEC 62548:2016
IEC 60050-448:1995
IEC 60050-811:1991
IEC 60050-826:2004
IEC 60529
IEC/TS 61201:2007
IEC/TS 62257-1:2015
IEC/TS 62257-3:2015
IEC/TS 62257-8-1:2007
IEC 62485-2