BS EN 60358-2:2013 pdf download
BS EN 60358-2:2013 pdf download.Coupling capacitors and capacitor dividers Part 2: AC or DC single-phase coupling capacitor connected between line and ground for power line carrier-frequency(PLC) application.
a) air-gap arrester.
measurement of the protection level voltage;
the voltage AC or DC is increased until breakdown The breakdown voltage must be within the range specified by the manufacturer;
b) arrester,
measurement of the reference voltage of arrester;
the AC voltage is increased on the arrester until the current reach 1 mA r.m.s, the measured reference voltage must be Within the range specified by the manufacturer.
10 Type tests
Clause 10 of IEC 603581:2012 Is applicable with the following additions:
10200 Test on capacitor
10200.1 High frequency capacitance and equivalent series resistance
The measurements shall be carried out on a complete capacitor or on a capacitor uniL
The capacitances and the equivalent series resistances shall be measured at the two temperatures equal to the limits of the temperature category and at a temperature within the standard range for testing (IEC 60358-1:2012, Clause 7). at several frequencies over the whole frequency range specified In Clause 1.
The measured values of the capacitance between the line and low voltage terminals shall not deviate by more than -20 % to +50 % from the rated capacitance.
For very high capacitance value and higher rated voltage values, the self-inductance of the capacitor (typical I pHIm) will not permit to cover the complete PLC frequency range given in Clause 1. In that case the usable frequency range shall be agreed between manufacturer and purchaser (see Annex AA),
The measured values of the equivalent series resistance between the line and low voltage terminals of the complete equipment shall not exceed 40 1) at any frequency and temperature.
For the lower measuring frequencies (for instance 30 kHz to 100 kHz) with a temperature equal to the lower limit of the category, or for capacitor stacks with a capacitance equal to or less than 2 000 pF. or for Urn greater than 420 kV, the equivalent series resistance may be higher than 40 ) In this case, the value shall be agreed between manufacturer and purchaser.
For high frequency characteristics and measuring methods, see Annex AA.
In the case of practical difficulties in carrying out the measurements at the limits of the
temperature category, the purchaser and the manufacturer may agree on measurements over
a smaller temperature range, or on measurements performed on a model capacitor containing
a limited number of elements.
10200.2 Measurement of the stray capacitance and stray conductance of the low voltage terminal
The measurements shall be carried out either on a unit or on a model representative of the bottom part of the capacitor under consideration.
This model shall include the earth terminal, the metal parts (e.g. flanges) permanently connected to it, and the low voltage terminal with at least one element connected to it end placed in its proper position. If a model is used, it shall be filled with the insulating liquid used for the capacitor
The values of the stray capacitance and the stray conductance, measured at any frequency in the carrier frequency range, shall not exceed 200 pF and 20 ,is respectively.
To avoid a harmful increase of the stray conductance in polluted ambient conditions, the low voltage terminal should have a creepage distance in accordance with IEC 60358-1:2012.
6.2.7.
10.201 Type test on carrier frequency accessor,es
10201.1 General
The routine tests according to 9.2.200.2 shall be repeated after the type tests.
10,201.2 Type tests for drain coil
10.201.2.1 Impedance measurement
The impedance shall be measured within the carrier-frequency range. The proposea
frequency steps are 30. 50. 100. 200. 300. 400 and 500 kHz.
The value of impedance shall be within the specified limit.
10.201.2.2 Impulse voltage test
The impulse voltage test shall be performed between the terminals of the drain coil Installed In its enclosure after disconnecting the voltage limitation device.
The peak value shall be twice the value of the impulse spark voltage of the voltage limitation device, but the minmum value should be 10 kV peak.
Ten 1.2 I 50 us voltage impulses shall be applied in sequence. live negative and live positive (see IEC 60060.1).
10.201.2.3 Current carrying capability test
The current carrying capability test shall be carried out, by applying a power frequency voltage between the terminals of the drain COi[ The test voltage shall be adjusted to achieve the rated current that shall not be less than 1 A (r.m.s). During this test the temperature rise AT shall be measured and the test shall be continued until the temperature has reached a steady state (AT c 1 KIh). The temperature rise shall not exceed the appropriate value given In Table 200.
