---

Overview

The “Fault locator” is an impedance measuring function giving the distance to the fault in km, miles or % of line length. The main advantage is the high accuracy achieved by compensating for load current and for the mutual zero-sequence effect on double circuit lines.

For more detailed information on “Fault locator” function, refer to ABB, Relion 670 Series manuals.

To see other supported functions, click here.

---

Function Identification

---

Signals & Setting Parameters

---

LMBRFLO function block

---

LMBRFLO Input signals

---

LMBRFLO Output signals

---

LMBRFLO Group settings (basic)

---

LMBRFLO Non group settings (basic)

---

LMBRFLO Monitored data

---

Logics & highlights

---

Simplified network configuration with network data, required for settings of the fault location-measuring function

---

Accurate algorithm for measurement of distance to fault

---

Table 859: Expressions for UA, IA and IFA for different types of faults

---

The non-compensated impedance model

---

Example of connection of parallel line IN for Fault locator LMBRFLO

---

Technical Data

---

LMBRFLO technical data

---

---

Overview

Complete and reliable information about disturbances in the primary and/or in the secondary system together with continuous event-logging is accomplished by the “Disturbance report” functionality.

For more detailed information on “Disturbance report” function, refer to ABB, Relion 670 Series manuals.

To see other supported functions, click here.

---

Function Identification

---

Signals & Setting Parameters

---

DRPRDRE function block

---

DRPRDRE Output signals

---

DRPRDRE Non group settings (basic)

---

DRPRDRE Monitored data

---

A4RADR function block, derived analog inputs

---

A4RADR Input signals

---

A2RADR to A4RADR Non group settings (basic)

---

B1RBDR function block, binary inputs, example for B1RBDR – B22RBDR

---

B1RBDR Input signals

---

B2RBDR to B22RBDR Input signals

---

B1RBDR Non group settings (basic)

---

B1RBDR Non group settings (advanced)

---

B2RBDR to B22RBDR Non group settings (basic)

---

Logics & highlights

---

Disturbance report functions and related function blocks

---

Disturbance report structure

---

Example of number of recordings versus the total recording time

---

The recording times definition

---

Analog input function blocks

---

Technical Data

---

DRPRDRE technical data

---

---

Overview

When using a Substation Automation system with LON or SPA communication, time-tagged events can be sent at change or cyclically from the IED to the station level. These events are created from any available signal in the IED that is connected to the “Event function” (EVENT). The EVENT function block is used for LON and SPA communication.

For more detailed information on “Event function”, refer to ABB, Relion 670 Series manuals.

To see other supported functions, click here.

---

Function Identification

---

Signals & Setting Parameters

---

EVENT function block

---

EVENT Input signals

---

EVENT Non group settings (basic)

---

---

Overview

The “Three phase undercurrent” function is designed for detecting loss of load conditions. It is a single definite time stage trip function with Phase wise start and trip signals.

For more detailed information on “Three phase undercurrent” function, refer to ABB, Relion 670 Series manuals.

To see other supported functions, click here.

---

Function Identification

---

Signals & Setting Parameters

---

LCP3PTUC Function block

---

LCP3PTUC Input signals

---

LCP3PTUC Output signals

---

LCP3PTUC Group settings (basic)

---

LCP3PTUC Non group settings (basic)

---

LCP3PTUC Monitored data

---

Technical Data

---

LCP3PTUC technical data

---

---

Overview

The “Three phase overcurrent” function is designed for overcurrent conditions. It is a single definite time stage trip function that has phase wise start and trip signals.

For more detailed information on “Three phase overcurrent” function, refer to ABB, Relion 670 Series manuals.

To see other supported functions, click here.

---

Function Identification

---

Signals & Setting Parameters

---

LCP3PTOC Function block

---

LCP3PTOC Input signals

---

LCP3PTOC Output signals

---

LCP3PTOC Group settings (basic)

---

LCP3PTOC Non group settings (basic)

---

LCP3PTOC Monitored data

---

Technical Data

---

LCP3PTOC technical data

---

---

Overview

Zero sequence components are present in all abnormal conditions involving earth. They have a considerably high value during earth faults. The “Zero sequence overcurrent protection” is a definite time stage comparator function.

For more detailed information on “Zero sequence overcurrent protection” function, refer to ABB, Relion 670 Series manuals.

To see other supported functions, click here.

---

Function Identification

---

Signals & Setting Parameters

---

LCZSPTOC Function block

---

LCZSPTOC Input signals

---

LCZSPTOC Output signals

---

LCZSPTOC Group settings (basic)

---

LCZSPTOC Non group settings (basic)

---

LCZSPTOC Monitored data

---

Technical Data

---

LCZSPTOC technical data

---

---

Overview

Negative sequence components are present in all types of fault condition. They can reach considerably high values during abnormal operation. The “Negative sequence overcurrent protection” is a definite time stage comparator function.

For more detailed information on “Negative sequence overcurrent protection” function, refer to ABB, Relion 670 Series manuals.

To see other supported functions, click here.

---

Function Identification

---

Signals & Setting Parameters

---

LCNSPTOC Function block

---

LCNSPTOC Input signals

---

LCNSPTOC Output signals

---

LCNSPTOC Group settings (basic)

---

LCNSPTOC Non group settings (basic)

---

LCNSPTOC Monitored data

---

Technical Data

---

LCNSPTOC technical data

---

---

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

---

Signals & Setting Parameters

---

LCZSPTOV function block

---

LCZSPTOV Input signals

---

LCZSPTOV Output signals

---

LCZSPTOV Group settings (basic)

---

LCZSPTOV Non group settings (basic)

---

LCZSPTOV Monitored data

---

highlights

---

A Guideline

---

Technical Data

---

LCZSPTOV technical data

---

---

Overview

Negative sequence components are present in all types of fault condition. Negative sequence voltage and current get high values during unsymmetrical faults. The “Negative sequence over voltage protection” (LCNSPTOV) is a definite time stage comparator function.

For more detailed information on “Negative sequence overvoltage protection” function, refer to ABB, Relion 670 Series manuals.

To see other supported functions, click here.

---

Function Identification

---

Signals & Setting Parameters

---

LCNSPTOV Function block

---

LCNSPTOV Input signals

---

LCNSPTOV Output signals

---

LCNSPTOV Group settings (basic)

---

LCNSPTOV Non group settings (basic)

---

LCNSPTOV Monitored data

---

Technical Data

LCNSPTOV technical data

---

---

Overview

In Direct transfer trip (DTT) scheme, the received CR signal gives the trip to the circuit breaker after checking certain local criteria functions in order to increase the security of the overall tripping functionality. The “Carrier receive logic” function gives final trip output of the DTT scheme.

For more detailed information on “Carrier receive logic” function, refer to ABB, Relion 670 Series manuals.

To see other supported functions, click here.

---

Function Identification

---

Signals & Setting Parameters

---

LCCRPTRC function block

---

LCCRPTRC Input signals

---

LCCRPTRC Output signals

---

LCCRPTRC Group settings (basic)

---

Technical Data

---

LCCRPTRC technical data

---