Controller description

Controller

The Microprocessor Based controller provide protection, control, monitoring, instrumentation and metering with integrated input and output logic, data logging & fault reports.

Communication access to controller functionality is via electrical RS485 port for remote connection. Additional rear port options including RS232 port is available.

The controller is mounted in the control cubicle. Along with the controller, this cubicle also contains the auxiliary power supply with batteries for uninterruptible power supply, electronic boards and circuit breakers.

The controller contains a large number of protection functions (elements) which can be selected or deselected through the menu driven display.

Enhanced features

Analysis of current/voltage normal & negative sequence for power quality monitoring.

Recording of PQM with fault waveform of 128 sampling and 20 cycles.

Harmonics analysis of electric data.

Monitoring of Sag, Swell, Interruption, over & low voltage, unbalance and etc.

Improvement of fault detection algorithm.

Automatic isolation of faulted section site and interconnection with other healthy section.

Improved measuring accuracy

Multi-Protocol support. (DNP3.0, MODBUS,IEC60870-5-101/104 & IEC61850).

User programmable logic(PLC) support.

Cubicle

The cubicle includes the complete electronics, the protection relay and the UPS system of the recloser. Additional components and features can be selected via order.

General Protection Features

Operating sequence

 Reclose times are selectable. The operating sequence is defined by:

O - 1st rt - CO - 2nd rt - CO - 3rd rt - CO

Reclose times

1st Reclose Time range: 0.3 - 600 sec

2nd Reclose Time range: 1.0 - 600 sec

3rd Reclose Time range: 1.0 - 600 sec

Timing resolution: 0.1 sec

Phase & Ground Fault

Pickup Level : 10~2000A (step:1A)
Fast TC Curve : 50 types (ANSI,IECmRecloser)
Fast Multiplier : 0.05~2.00 (step:0.01)
Fast Time Add : 0.00~1.00 (step:0.01sec)
Fast Min Response : 0.00~1.00 (step :0.01sec)
Delay TC Curve : 50 types (ANSI,IECmRecloser)
Delay Multiplier : 0.05~2.00 (step:0.01)
Delay Time Add : 0.00~1.00 (step:0.01sec)
Delay Min Response : 0.00~1.00 (step :0.01sec)

Direction Detection

3V1 threshold : 0~100% (step:1%)

3I1 threshold : 0~100% (step:1%)

3I1 Angle : 0~359° (step:1°)

High Current Trip (HCT)

Phase-HCT Pickup Leve : 25~10000A (step:1A)

Phase-HCT Adder : 0.01~1 (step:0.01sec)

Ground-HCT Pickup Leve : 25~10000A (step:1A)

Ground-HCT Adder : 0.01~1 (step:0.01sec)

Delay Time Current Trip

Phase-HCT Pickup Leve : 25~10000A (step:1A)

Phase-HCT Adder : 0.01~2 (step:0.01sec)

Ground-HCT Pickup Level : 25~10000A (step:1A)

Ground-HCT Adder : 0.01~2 (step:0.01sec)

Sensitive Earth Fault (SEF)

Pickup I0 : 0.1~20A (step:0.1A)

V0 : 10~80% (step:1%)

Operating Angle : 0~345° (1°step)

Opearting Time : 0.1~30 sec (step:0.1sec)

Cold Load Pickup/Inrush Restraint

Cold Load Phase Pickup Multiplier : 1.0~10 (step: 1)

Cold Load Time Duration : 0~180 min (step: 1 min)

Inrush 2nd Harmonic Level : 1~50% (step: 1%)

Phase, Ground, SEF Inrush Block : 1 ( yes) / 0( no)

Open Line (Loss of Phase) Detection

Voltage On Level : 50~90% (step: 5%) of rated voltage

Voltage Off Level : 35~75% ( step: 5%) of rated voltage

Delay Time : 0.1~30.0 sec (step: 0.1 sec)

Synchronism Check

Sync Fail Phase Difference : 5~60˚( step: 1˚)

Delay time : 0.1~30.0 sec (step: 0.1 sec)

Under Frequency

Pickup level : 47.00~59.98Hz (step:0.01Hz)

Delay Time : 0.03~10.00sec (step:0.01sec)

Over Frequency

Pickup level : 52.02~63.00Hz (step:0.01Hz)

Delay Time : 0.03~10.00sec (step:0.01sec)

Negative Sequence Overcurrent(Broken conductor)

Pickup I2 / I1 level : 30.0 ~ 100.0 (step: 1%)

I2 / I1 delay time : 0.01 ~ 100.0 (step : 0.01sec)

4 Setting Groups

Each group saves individual setting values

for different situations.

Active Setting Group Selection: 1~4

Inter lock

Live Load block

Sync fail block

General Protection Features

Recording

Events

Totally more than 32,000 events are stored and listed.

I/O events (1024) / Functional events (1024,30000) / System events(256)

Fault events (256) /PQM event(256) / Demand profile I,P,Q (6144) /Maximum demand profile (1024)

Fault Waveform

Up to 4 faults are stored. (32 samples/cycle, 240 cycles/record)

Graphical Display in Analysis Tool : Ia, Ib, Ic, In, Va, Vb, Vc

Load Profiling

Demand & Daily Maximum Current : Ia, Ib, Ic, In

Demand & Daily Maximum Power : kW, KVAR (A/B/C/3-ph)

Averaging Interval : 5 / 10 / 15 min

Graphical Display in Analysis Tool

Local / Remote : Control Position (only locally changeable)

Open/Close : Switch Body Status Change Command

DO (Direct Operate) and SBO (Select Before Operate) are supported.

Reset : Annunciator Manual Reset Command

Battery Test : Battery & Charger Circuit Check

Protection Function Blocking

User Configurable DO Points (reserved) : 2

Others

RTC (Real Time Clock) : YYYY/MM/DD hh:nn:ss

SOE (Sequence of Event) Time Resolution : 1 msec

Digital Filtering & Dead-band Setting for Analog Inputs

Calibration (Correction Factor) : Factory Setting only

Ia, Ib, Ic, In, Va, Vb, Vr, Vs, Vt

Factor Magnitude: 0.500~1.500

Phase Angle: 0.000~359.9°

Communication Interface

RS 232C #1

On FRTU left-side (inside the inner door)

SCADA or DA System Communication Interface

Through Cable / Wireless / Fiber Optic Modems

Functions

Remote Operation (Control, Status Monitoring, Tele-metering)

Remote Setting (optional)

File Transfer (Event & Fault Data; DNP protocol only)

Protocols

DNP 3.0 (Level 2) or IEC60870-5-101 (optional)

Baud Rate

1200 ~ 19200 bps

Address

Master Address: 0 ~ 65534

Slave Address: 0 ~ 65534

RS 232C Port #2

On FRTU Front Panel

Setting & Configuration, Maintenance, Recorded Data Analysis Through Setting & Analysis Tool

Functions

Setting and Configuration Change (Batch Job)

Protocol Monitor (Communication Frame Check)

Real-time Display : Measurement and Status Data

Event List and Fault Oscillograph

Demand Load Profiling & Graphical Display

FRTU Firmware Download

Protocols

Modbus

Baud Rate

1200~19200 bps

Connector Type

DB9 Female