BS EN 60255-22-5:2011
$142.49
Measuring relays and protection equipment – Electrical disturbance tests. Surge immunity test
| Published By | Publication Date | Number of Pages |
| BSI | 2011 | 24 |
This part of IEC 60255 is based on IEC 61000-4-5, referring to that publication where applicable, and specifies the general requirements for surge immunity tests for measuring relays and protection equipment for power system protection, including the control, monitoring and process interface equipment used with those systems.
The objective of the tests is to confirm that the equipment under test will operate correctly when energized and subjected to high-energy disturbances on the power and interconnection lines, caused by surge voltages from switching and lightning effects.
This standard does not intend to test the capability of the insulation to withstand high-voltage stress. The insulation test is covered by IEC 60255-27.
The requirements specified in this standard are applicable to measuring relays and protection equipment in a new condition and all tests specified are type tests only.
The object of this standard is to define:
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terms used;
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test severity levels;
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test equipment;
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test set-up;
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test procedures;
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criteria for acceptance;
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test report requirements.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | English CONTENTS |
| 7 | 1 Scope and object 2 Normative references |
| 8 | 3 Terms and definitions |
| 9 | 4 Test severity level Figures Figure 1 – Ports tested in this standard for measuring relays and protection equipment Table 1 – Test voltages and source impedances for the EUT ports |
| 10 | 5 Test equipment 6 Test set-up 6.1 General 6.2 Tests applied to auxiliary power supply port 6.3 Tests applied to current/voltage transformer inputs 6.4 Tests applied to status inputs/output contacts |
| 11 | 6.5 Tests applied to communications port and other ports using shielded lines 7 Test procedure 8 Criteria for acceptance |
| 12 | 9 Test report Table 2 – Criteria for acceptance |
| 13 | Figure 2 – Line to earth tests applied to the auxiliary power supply port |
| 14 | Figure 3 – Line to line tests applied to the auxiliary power supply port |
| 15 | Figure 4 – Line to earth tests applied to current/voltage transformer inputs |
| 16 | Figure 5 – Line to line tests applied to current/voltage transformer inputs |
| 17 | Figure 6 – Line to earth tests applied to status input/output contacts |
| 18 | Figure 7 – Line to line tests applied to status input/output contacts |
| 19 | Figure 8 – Line to earth tests applied to communications port and other ports using shielded cables with the shields grounded at both ends |
| 20 | Figure 9 – Line to earth tests applied to communications port and other ports using shielded cables with the shield connected at one end only |
| 21 | Figure 10 – Line to earth tests applied to single and bundled cables in a multi-shield configuration |
| 22 | Bibliography |
