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CEI EN 61558-2-20

Safety of transformers, reactors, power supply units and combinations thereof Part 2-20: Particular requirements and tests for small reactors

active, Most Current
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Organization: CEI
Publication Date: 1 March 2012
Status: active
Page Count: 38
ICS Code (Transformers. Reactors): 29.180
scope:

Replacement:

This part of IEC 61558 deals with the safety of small reactors for general applications.

NOTE 1 Safety includes electrical, thermal and mechanical aspects.

Unless otherwise specified, from here onward, the term transformer or reactor covers small reactors.

This part is applicable to stationary or portable, single-phase or polyphase, air-cooled (natural or forced) general purpose reactors including alternating current, premagnetised and current compensated independent or associated reactors.

The rated supply voltage does not exceed 1 000 V a.c. or 1 500V ripple-free d.c., the rated supply frequency and the internal operational frequencies do not exceed 1 MHz.

The rated power does not exceed:

- 25 kVAR a.c. (25 kW d.c.) for single-phase reactors,

- 50 kVAR a.c. (50 kW d.c.) for poly-phase reactors.

This part is applicable to reactors without limitations of the rated power subject to an agreement between the purchaser and the manufacturer.

This part is applicable to dry-type reactors. The windings may be encapsulated or nonencapsulated.

This part does not apply to:

- reactors covered by IEC 60289;

- ballast for tubular fluorescent covered by IEC 61347-2-8;

- ballast for discharge lamps (excluding tubular fluorescent lamps) covered by IEC 61347-2-9.

NOTE 2 For reactors filled with liquid dielectric or pulverised material such as sand, additional requirements are under consideration.

NOTE 3 Attention is drawn to the following:

- for reactors intended to be used in vehicles, on board ships, and aircraft, additional requirements (from other applicable standards, national rules, etc.) may be necessary;

- measures to protect the enclosure and the components inside the enclosure against external influences such as fungus, vermin, termites, solar-radiation, and icing should also be considered;

- the different conditions for transportation, storage, and operation of the reactor should also be considered;

- additional requirements in accordance with other appropriate standards and national rules may be applicable to reactors intended for use in special environments, such as tropical environment.

NOTE 4 Normally, reactors are intended to be associated with equipment for functional requirements of the equipment or requirements by the installation rules or by other appliance specifications.

NOTE 5 Reactors incorporating electronic circuits and components are also covered by this standard.

NOTE 6 The protection against electric shock may be provided (or completed) by other parts or features of the equipment, such as the body.

NOTE 7 Reactors for particular applications will in the future be covered by complementary normative annexes.

NOTE 8 Future technological development of reactors may necessitate a need to increase the upper limit of the frequencies, until then this part may be used as a guidance document.- additional requirements in accordance with other appropriate standards and national rules may be applicable to reactors intended for use in special environments, such as tropical environment.

Document History

CEI EN 61558-2-20
March 1, 2012
Safety of transformers, reactors, power supply units and combinations thereof Part 2-20: Particular requirements and tests for small reactors
Replacement: This part of IEC 61558 deals with the safety of small reactors for general applications. NOTE 1 Safety includes electrical, thermal and mechanical aspects. Unless otherwise specified,...
September 1, 2001
Safety of power transformers, power supply units and similar devices - Part 2-20: Particular requirements for small reactors
Questa Norma si applica ai reattori di piccola taglia, fissi o mobili, monofase o polifase, raffreddati ad aria (naturale o forzata) per uso generale, compresi i reattori a corrente alternata,...

References

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