Overview
Zero sequence components are present in all abnormal conditions involving earth. They can reach considerably high values during earth faults. The “Zero sequence overvoltage protection” is a definite time stage comparator function.
For more detailed information on “Zero sequence overvoltage protection” function, refer to ABB, Relion 670 Series manuals.
To see other supported functions, click here.
Function Identification
| Function description | IEC 61850 identification |
IEC 60617 identification |
ANSI/IEEE C37.2 device number |
| Zero sequence overvoltage protection | LCZSPTOV | – | 59N |
Signals & Setting Parameters
LCZSPTOV function block
LCZSPTOV Input signals
| LCZSPTOV Input signals | |||
| Name | Type | Default | Description |
| U3P | GROUP SIGNAL | – | Three phase group signal for voltage inputs |
| BLOCK | BOOLEAN | 0 | Block overall function |
| BLKTR | BOOLEAN | 0 | Block TRIP output |
LCZSPTOV Output signals
| LCZSPTOV Output signals | |||
| Name | Type | Description | |
| TRIP | BOOLEAN | TRIP signal for zero sequence over voltage protection | |
| START | BOOLEAN | Start signal for zero sequence over voltage protection | |
LCZSPTOV Group settings (basic)
| LCZSPTOV Group settings (basic) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| Operation | Off On |
– | – | Off | Operation Off/On |
| 3U0> | 1 – 200 | %UB | 1 | 10 | Zero sequence voltage start value in % of UBase |
| t3U0 | 0.000 – 120.000 | s | 0.001 | 2.000 | Time delay to operate |
LCZSPTOV Non group settings (basic)
| LCZSPTOV Non group settings (basic) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| GlobalBaseSel | 1 – 12 | – | 1 | 1 | Selection of one of the Global Base Value groups |
LCZSPTOV Monitored data
| LCZSPTOV Monitored data | ||||
| Name | Type | Values (Range) | Unit | Description |
| 3U0 | Real | – | kV | Zero sequence voltage value |
highlights
A Guideline
Technical Data
LCZSPTOV technical data
