5
SVERKER 750/760
Programma Electric AB
ZP-CD01E R05A
6.7 Finding pick-up and drop-out limits
for under (current/voltage/other entity)
relays ......................................................43
6.8 Measuring operating times for over
(current/voltage/other entity) relays ..... 44
6.9 Measuring operating times for under
(current/voltage/other entity) relays ..... 45
6.10 Measuring voltage......................... 45
6.11 Obtaining the correct phase angle
when two or more AC outputs are being
used ........................................................46
6.12 Generating higher voltages ..........46
6.13 Setting an auxiliary voltage .......... 47
6.14 Testing voltage relays – both pre-
fault and fault voltages .........................47
Only for SVERKER 750 .................. 47
6.15 Changing the current and voltage
phase difference .................................... 48
Sverker 750 ....................................48
Sverker760 .....................................48
6.16 Measuring the phase angle ..........49
6.17 Measuring external cycle time
(measurement not initiated by
Sverker) ..................................................50
6.18 Measuring Z, P, R, X, VA, VAR and
COS M 50
6.19 Plotting a magnetization curve .....51
6.20 Testing an automatic recloser .......52
6.21 Measuring the trip pulse length ...53
6.22 Injecting current – External start ... 53
7 Application examples ........................ 54
7.1 Testing voltage relays......................54
7.2 Testing over-current relays ..............55
7.3 Testing directional over-current relay
systems or directional ground-fault
(earth-fault) relay systems .................... 57
Sverker 760 ....................................57
Sverker 750 ....................................58
7.4 Testing power relays ....................... 60
7.5 Testing under- voltage relays ..........62
7.6 Testing motor overload releases and
overcurrent cut-outs that grant/deny
starting permission ................................64
Only for SVERKER 750 .................. 64
8 Troubleshooting ................................. 65
8.1 General .............................................65
8.2 Displayed values .............................65
8.3 Error messages etc. .........................66
9 Specifications .....................................67
9.1 General .............................................67
9.3 Inputs ................................................68
9.4 Make/Break contact .........................69
9.5 Measurement section ......................70
9.6 Other ................................................. 72
10 Maintenance ..................................... 73
10.1 Changing the position of the switch
for mains frecuency (Sverker 760) .......73
Index .......................................................74
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