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Power transformers - Part 10: Determination of sound levels (IEC 60076-10:2001, IDT)
MS IEC 60076-10:2005
Status : Original
Format : PDF

This Malaysian Standards defines sound pressure and sound intensity measurement methods by which sound power levels of transformers, reactors and their associated cooling auxiliaries may be determined ....Read more .

NOTE For the purpose of this standard, the term "transformer" means "transformer or reactor".

The methods are applicable to transformers and reactors covered by the IEC 60076 series, IEC 60289, IEC 60726 and the IEC 61378 series, without limitation as regards size or voltage and when fitted with their normal cooling auxiliaries.

This standard is primarily intended to apply to measurements made at the factory. Conditions on-site may be very different because of the proximity of objects, including other transformers. Nevertheless, the same general rules as are given in this standard may be followed when on-site measurements are made. Close

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POWER TRANSFORMERS - PART 5: ABILITY TO WITHSTAND SHORT CIRCUIT(IEC 60076-5:2000, IDT)
MS IEC 60076-5:2005
Status : Original
Format : PDF

This Malaysian Standards identifies the requirements for power transformers to sustain without damage the effects of over currents originated by external short circuits. It describes the calculation p ....Read more rocedures used to demonstrate the thermal ability of a power transformer to with stand such over currents and both the special test and the calculation method used to demonstrate its ability to withstand the relevant dynamic effects. The requirements apply to transformers as defined in the scope of IEC 60076-1. Close

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POWER TRANSFORMERS - PART 2: TEMPERATURE RISE(IEC 60076-2:1993, IDT)
MS IEC 60076-2:2005
Status : Original
Format : PDF

This part of Malaysian Standard IEC 76 identifies transformers according to their cooling methods, defines temperature-rise limits and details the methods of test for temperature-rise measurements. It ....Read more applies to transformers as defined in the scope of IEC 76-1. Close

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Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air (IEC 60076-3: 2000, IDT)
MS IEC 60076-3:2005 (CONFIRMED:2013)
Status : 1st Confirmation
Format : PDF

his Malaysian Standard applies to single-phase and three-phase oil-immersed power transformers (including auto-transformers), with the exception of certain small and special transformers, as defined i ....Read more n the scope of IEC 60076-1. It identifies transformer windings to their highest voltage for equipment Um associated with their corresponding rated insulation levels and details the relevant applicable dielectric tests and minimum external clearances in air between live parts of bushings and to objects at earth potential.

For categories of power transformers and reactors which have their own IEC standards, this standard is applicable only to the extent in which it is specifically called up by cross reference in the other standards. Close

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Power transformers - Part 4: Guide to the lightning impulse and switching impulse testing - Power transformers and reactors (IEC 60076-4:2002, IDT)
MS IEC 60076-4:2005 (CONFIRMED:2013)
Status : 1st Confirmation
Format : PDF

This Malaysian Standard gives guidance and explanatory comments on the existing procedures for
lightning and switching impulse testing of power transformers to supplement the requirements of ....Read more r /> IEC 60076-3. It is also generally applicable to the testing of reactors (see IEC 60289),
modifications to power transformer procedures being indicated where required.

Information is given on waveshapes, test circuits including test connections, earthing
practices, failure detection methods, test procedures, measuring techniques and interpretation
of results.

Where applicable, the test techniques are as recommended in IEC 60060-1 and IEC 60060-2. Close

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Power transformers - Part 1: General (First revision) (IEC 60076-1:2011, MOD)
MS 60076-1:2015
Status : 1st Revision
Format : PDF

This Malaysian Standard applies to three-phase and single-phase power transformers (including auto-transformers) with the exception of certain categories of small and special transformers. For those c ....Read more ategories of power transformers and reactors which have their own IEC standards, this part is applicable only to the extent in which it is specifically called up by cross-reference in the other standard. This new edition includes the following significant technical additions with respect to the previous one:

- definition of harmonic content;
- subclause on transport;
- functional method of specification;
- connection symbols for single phase transformers;
- safety and environmental requirements;
- requirements for liquid preservation systems;
- clause on DC currents;
- vacuum, pressure and leak tests on tanks;
- facilities for condition monitoring and environmental and safety considerations Close

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Insulation co-ordination - Part 4: Computational guide to insulation co-ordination and modelling of electrical networks
MS 60071-4:2012
Status : Original
Format : PDF

This Malaysian Standard gives guidance on conducting insulation co-ordination studies which propose internationally recognised recommendations - for the numerical modelling of electrical systems, and ....Read more - for the implementation of deterministic and probabilistic methods adapted to the use of numerical programmes. Close

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Insulation co-ordination - Part 5: Procedures for high-voltage direct current (HVDC) converter stations (IEC/TS 60071-5:2002, MOD)
MS 60071-5:2012
Status : Original
Format : PDF

This Malaysian Standard specifies guidance on the procedures for insulation co-ordination of high-voltage direct current (HVDC) converter stations, without prescribing standardised insulation levels. ....Read more

The guide applies only for HVDC applications in high-voltage a.c. power systems and not for industrial conversion equipment. Principles and guidance given are for insulation co-ordination purposes only. Close

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INSULATION CO-ORDINATION - PART 2: APPLICATION GUIDE (IEC 60071-2:1996, IDT)
MS IEC 60071-2:2009
Status : Original
Format : PDF

This Malaysian Standard constitutes an application guide and deals with the selection of insulationlevels of equipment or installations for three-phase electrical systems. Its aim is to give guidance ....Read more for the determination of the rated withstand voltages for ranges I and II of IEC 71-1 and to justify the association of these rated values with the standardized highest voltages for equipment.

This association is for insulation co-ordination purposes only. The requirements for human
safety are not covered by this application guide.

It covers three-phase systems with nominal voltages above 1 kV. The values derived or
proposed herein are generally applicable only to such systems. However, the concepts
presented are also valid for two-phase or single-phase systems.

It covers phase-to-earth, phase-to-phase and longitudinal insulation.

This application guide is not intended to deal with routine tests. These are to be specified by
the relevant product committees.

The content of thi Close

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Environmental testing - Part 2-69: Tests - Test TE: Solderability testing, of electronic components for surface mounting devices (SMD) by the wetting balance method (IEC 60068-2-69:1995, IDT)
MS IEC 60068-2-69:2008 (CONFIRMED:2015)
Status : 1st Confirmation
Format : PDF

This Malaysian Standard outlines test Te, solder bath wetting balance method and solder globule wetting balance method, applicable for surface mounting devices. These methods determine quantitatively ....Read more the solderability of terminations on surface mounting devices. Close

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