Hitachi Relion 670 Series Applications Manual page 8
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Also See for Relion 670 Series:
- Applications manual (354 pages) ,
- Commissioning manual (284 pages) ,
- Product manual (192 pages)
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4.2.2.5
4.2.2.6
4.2.3
Relationships between setting parameter Base Current, CT rated primary current
and minimum pickup of a protection IED...........................................................................54
4.2.4
Setting of voltage channels............................................................................................... 55
4.2.4.1
4.2.4.2
4.2.4.3
4.2.4.4
4.2.5
Example of analogue configuration for railway applications............................................. 58
4.2.5.1
4.2.5.2
4.2.5.3
Section 5
Local HMI......................................................................................................63
5.1
Display.................................................................................................................................64
5.2
LEDs....................................................................................................................................65
5.3
Keypad................................................................................................................................ 66
5.4
Local HMI functionality........................................................................................................ 68
5.4.1
Protection and alarm indication......................................................................................... 68
5.4.2
Parameter management ...................................................................................................69
5.4.3
Front communication.........................................................................................................69
Section 6
Differential protection................................................................................. 71
6.1
Low impedance restricted earth fault protection REFPDIF ................................................ 71
6.1.1
Function revision history....................................................................................................71
6.1.2
Identification...................................................................................................................... 71
6.1.3
Application.........................................................................................................................71
6.1.3.1
6.1.3.2
6.1.3.3
6.1.4
Setting guidelines..............................................................................................................73
6.1.4.1
6.1.4.2
6.2
Single-phase railway power transformer differential protection T1PPDIF...........................74
6.2.1
Function revision history....................................................................................................74
6.2.2
Identification...................................................................................................................... 74
6.2.3
Application.........................................................................................................................74
6.2.4
Setting guidelines..............................................................................................................75
6.2.4.1
6.2.4.2
6.2.4.3
6.2.4.4
6.2.4.5
6.2.5
Setting examples...............................................................................................................78
6.2.5.1
2
Example on how to connect a star connected two-phase CT set to the IED .............. 50
Example how to connect single-phase CT to the IED..................................................53
Example....................................................................................................................... 55
Examples how to connect, configure and set VT inputs for most commonly used
VT connections............................................................................................................ 55
Examples on how to connect a two phase-to-earth connected VT to the IED ............ 56
Example on how to connect a residually connected IED ............................................ 57
Configuration example 1 ............................................................................................. 58
Configuration example 2.............................................................................................. 59
Configuration example 3.............................................................................................. 60
Transformer winding, solidly earthed........................................................................... 72
CT earthing direction....................................................................................................72
Railway specific applications for REFPDIF function.................................................... 73
Setting and configuration............................................................................................. 73
Settings........................................................................................................................ 73
Restrained and unrestrained differential protection..................................................... 75
Elimination of zero sequence currents......................................................................... 76
Inrush restraint methods.............................................................................................. 77
Overexcitation restraint method................................................................................... 77
Protections based on the directional criterion.............................................................. 77
Application examples................................................................................................... 79
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1MRK506375-UEN Rev. N
Railway application RER670
Application manual
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