Alstom SHPM 101 - Page 219

SERVICE MANUAL R5888C
QUADRAMHO Chapter 5
Contents
1. GENERAL 1
2. TEST EQUIPMENT REQUIRED 1
3. PRELIMINARY INSTRUCTIONS 2
3.1 Wiring check 2
3.2 Insulation test 2
3.3 Module data check and information on the ratings label 2
4. SECONDARY INJECTION TESTS 3
4.1 Settings 3
4.2 Isolation 3
4.3 Initial shecks, including self-check facilities 4
4.4 Level detector checks 4
4.4.1 Voltage level detectors 4
4.4.2 Fixed current level detector checks 5
4.4.3 Auto ranging low set and high set residual current level detectors 6
4.5 Zone 1 reach tests 6
4.5.1 Connections and preliminaries 6
4.5.2 Ground faults zone 1 7
4.5.3 Phase faults 8
4.6 Zone 2 reach tests 8
4.7 Zone 3 reach checks 8
4.8 Resistive reach check 9
4.9 Zone 1 operation times 9
4.10 Zone 2 operation times 10
4.11 Zone 3 operation times 10
4.12 Power swing blocking checks 10
4.12.1 Zone 6 boundaries 10
4.12.2 50ms timer check 11
4.12.3 Simulated power swing with blocking checks 11
4.13 Voltage transformer supervision 11
4.13.1 Operation on zero sequence volts 12
4.13.2 Timing check 12
4.13.3 Current checks 12
4.13.4 Instantaneous indication or blocking check 12
4.13.5 Miniature circuit breaker block check 12
4.14 Switch-on-to-fault check 13
4.15 Memory feature check (synchronous polarising) 14
4.16 Check on function of SW4 (if auto-reclose is used) 14
4.17 Trip test function check 14
5. SCHEME TESTS 15
5.1 Zone 1 extension scheme (08 or 09) 15
5.2 Permissive underreach scheme (02 or 03) 15
5.2.1 Aided trip check 15
5.2.2 Signal receive delay on drop-off 15
5.2.3 Signal send checks 15
5.2.4 Signal receive check 16