39
The algorithm provides the set-up simplicity of a traditional sectionalizer and at the same time reducing the
fault clearing time and network reconfiguration time application in far more complex networks and provide an
unlimited number of sections to limit the number of customers affected.
Rezip is applicable in meshed grid automation schemes together with ABR functionality. Rezip enables the
building of self-healing networks where it is not possible with conventional reclosers and sectionalizers.
Zone Sequence Coordination
The AR OC provides Zone Sequence Coordination (ZSC). ZSC forces the AR OC element to step to the next
count in the reclose sequence on reset of all protection elements if it detects a downstream protection device
has operated. This functionality is required for applications where a fuse-saving philosophy is used.
Hot Line (HL)
This element consists of two sub-elements which provide protection against short circuit faults during Hot Line
maintenance. It generally has more sensitive settings than corresponding OCR settings and it has no reclosing
functions. HL consists of two Overcurrent elements, one for Phase Overcurrent (HLOC) and one for Earth
Fault (HLEF). Operation of either element results in the trip to lockout.
HL settings are described in Tables 43-46.
Table 38
– Radial line recloser HLOC element settings
Settings
Designation
Range
Step size
Default
Pickup current, A
Ip
10-1280
1
10
Tripping time, s
Tt
0.00
–2.00
0.01
0.00
Table 39
– Ring line recloser HLOC element settings
Settings
Designation
Range
Step size
Default
Pickup , A
Ip+
10-1280
1
10
Tripping time+, s
Tt+
0.00
–2.00
0.01
0.00
Pickup current-, A
Ip-
10-1280
1
10
Tripping time-, s
Tt-
0.00
–2.00
0.01
0.00
Table 40
– Radial line recloser HLEF element settings
Settings
Designation
Range
Step size
Default
Pickup current, A
Ip
4-1280
1
4
Tripping time, s
Tt
0.00
–2.00
0.01
0.00
Table 41
– Ring line recloser HLEF element settings
Settings
Designation
Range
Step size
Default
Pickup , A
Ip+
4-1280
1
4
Tripping time+, s
Tt+
0.00
–2.00
0.01
0.00
Pickup current-, A
Ip-
4-1280
1
4
Tripping time-, s
Tt-
0.00
–2.00
0.01
0.00
Sensitive Earth Fault (SEF)
This element provides protection against high impedance earth faults.
SEF settings are described in Table 42 and Table 43.
SEF TD and custom time current curves settings are described in Table 44 and Table 45.
Table 42
– Radial line recloser SEF element settings
Settings
Designation
Range
Step size
Default
Operating mode
Mode
Disable/Alarm/Trip
Trip
Summary of Contents for Rec15
Page 1: ......
Page 5: ...1 Introduction...
Page 9: ...2 Technical Parameters...
Page 14: ...3 Product Description...
Page 26: ...26 Figure 25 Anti vandal housing...
Page 27: ...4 Functionality...
Page 56: ...5 Product Handling...
Page 69: ...6 Installation...
Page 81: ...7 Commissioning...
Page 84: ...8 Operation...
Page 99: ...99 Figure 76 Settings uploading wizard...
Page 100: ...9 Maintenance and Troubleshooting...
Page 114: ...114 Figure 90 Securing the trip hook shaft against rotation...
Page 115: ...10 Product Coding...
Page 122: ...11 Appendices...
Page 128: ...128 Appendix 4 Recloser Control Drawings Figure 99 Dimensions of RC5_4...
Page 133: ...133 Figure 106 Dimensions of standard OSM mounting kit arrangement for lateral installation...
Page 134: ...134 Figure 107 Dimensions of interface bracket...
Page 135: ...135 Figure 108 Dimensions of OSM mounting kit with M16 pole interface front installation...
Page 136: ...136 Figure 109 Dimensions of OSM mounting kit with M16 pole interface lateral installation...
Page 137: ...137 Figure 110 Dimensions of OSM mounting kit with M20 pole interface front installation...
Page 138: ...138 Figure 111 Dimensions of OSM mounting kit with M20 pole interface lateral installation...
Page 149: ...149 Figure 122 Dimensions of OSM substation mounting kit...
Page 152: ...152 Figure 125 Dimensions of RC mounting kit for through the pole installation...
Page 153: ...153 Figure 126 Dimensions of RC substation mounting kit...
Page 154: ...154 Figure 127 Dimensions of VT mounting kit One VT holder...
Page 163: ...163 Appendix 8 Connectors Drawings Figure 141 Dimensions of aerial connector...
Page 164: ...164 Figure 142 Dimensions of bird guards for aerial connector...
Page 165: ...165 Figure 143 Dimensions of two hole NEMA connector...
Page 166: ...166 Figure 144 Dimensions of bird guards for two hole NEMA connector...
Page 167: ...167 Figure 145 Dimensions of four hole NEMA connector...
Page 168: ...168 Figure 146 Dimensions of bird guards for four hole NEMA connector...
Page 169: ...169 Figure 147 Dimensions of Burndy NEMA connector...
Page 170: ...170 Appendix 9 Recloser Control Wiring Diagram Figure 148 RC5_4 wiring diagram...
Page 172: ......