Category: ABB

Bus protection via GOOSE

The IEC 61850 implementation in PCMU MSOC includes

fast peer-to-peer communication, over the substation bus.

Use GOOSE communication between PCMU MSOC relays of

the incoming and outgoing feeders of a substation to form a

stable, reliable, and high-speed busbar protection system. The

cost-effective GOOSE-based busbar protection is obtained by

configuring the relays and the operational availability of the pro

tection is assured by continuous supervision of the protection

devices and their GOOSE messaging over the station bus. No

separate hard-wiring is needed for the horizontal communica

tion between the switchgear cubicles.The breaker monitoring can

include checking the wear and tear of the circuit breaker, the

spring charging time of the breaker operating mechanism and

the gas pressure of the breaker chambers. The relay also mo

nitors the breaker travel time and the number of circuit breaker

operations to provide basic information for scheduling breaker

maintenance.

Standardized communication

As a standard feature, PCMU MSOC supports the IEC 61850

standard for communication between devices within the subs

tations along with the industry standards DNP 3.0 and Modbus

protocols. The implementation of the IEC 61850 substation

communication standard in PCMU MSOC encompasses both

vertical and horizontal communication, including GOOSE mes

saging and parameter setting according to IEC 61850-8-1. The

substation configuration language enables the use of enginee

ring tools for automated configuration, commissioning, and

maintenance of substation devices.

Pre-emptive condition monitoring

For continuous knowledge of the operational availability of the

PCMU MSOC features, a comprehensive set of monitoring

functions to supervise the relay health, the trip circuit, and the

circuit breaker health is included. The breaker monitoring can

include checking the wear and tear of the circuit breaker, the

spring charging time of the breaker operating mechanism and

the gas pressure of the breaker chambers. The relay also mo

nitors the breaker travel time and the number of circuit breaker

operations to provide basic information for scheduling breaker

maintenance.

Protection and control

The PCMU MSOC is the most powerful, advanced and simplest

feeder protection relay in its class, offering time and instantane

ous overcurrent, negative sequence overcurrent, phase discon

tinuity, breaker failure, thermal overload, and voltage metering

and protection. The relay features optional high impedance fault

(HIZ) and sensitive earth fault (SEF) protection for grounded and

ungrounded distribution systems. The relay incorporates a flexi

ble three-phase multi-shot auto-reclose function for automatic

feeder restoration in temporary faults on overhead lines.

The PCMU MSOC integrates basic control functionality, which

facilitates the control of one circuit breaker via the relay’s front

panel human machine interface (HMI) or remote control system.

To protect the relay from unauthorized access and to maintain

the integrity of information, the relay has been provided with a

four-level, role-based user authentication system, with individual

passwords for the viewer, operator, engineer, and administrator

levels. The access control system applies to the front panel

HMI, embedded web browser based HMI, and the PCM600

relay setting and configuration tool.

The IEC 61850 implementation in PCMU MSOC includes

fast peer-to-peer communication, over the substation bus.

Use GOOSE communication between PCMU MSOC relays of

the incoming and outgoing feeders of a substation to form a

stable, reliable, and high-speed busbar protection system. The

cost-effective GOOSE-based busbar protection is obtained by

configuring the relays and the operational availability of the pro

tection is assured by continuous supervision of the protection

devices and their GOOSE messaging over the station bus. No

separate hard-wiring is needed for the horizontal communica

tion between the switchgear cubicles.

Application

The PCMU MSOC solution provides main protection for over

head lines, cable feeders, and busbar systems of distribution

substations. It can be applied for protection and control of

grounded and ungrounded distribution systems.

Unique REF615 features

Major ease of replacement benefits for ANSI and IEC

PCMU MSOC users:

− Wire-alike I/O and CT/VT connections greatly reduce drawing

modification time

− Comparable protection and control plus more included

− Near SCADA-alike for DNP3.0 points & Modbus registers

− Six setting groups

− Drawout design

− Underground, overhead cable fault detection (CFD)

− Field selectable 1A or 5A CT inputs

− Advanced user programmable function blocks

− Thermal overload protection of feeder cable

− Ring-lug terminals for all inputs and outputs

− Large, customizable, easy to read LCD screen

− Environmentally friendly design with RoHS compliance

− Web browser based HMI

− PCM600 Software Tool – tools for basic configuration are

included at no additional charge in PCM600

− High-speed (< 1 ms) outputs – optional

− High impedance (HIZ) fault detection – optional

− Arc flash detection (AFD) – optional

Retrofit solution for Microshield Overcurrent relay (MSOC)

The PCMU MSOC is a dedicated feeder protection and

control relay perfectly aligned for the protection, control,

measurement, and supervision of utility substations and

industrial power systems, designed to replace the ABB

legacy Microshield overcurrent (MSOC) relay. The relay

provides exact wire-alike matching rear terminals as the

existing MSOC relay, saving time and engineering. This

wire-alike feature makes the PCMU MSOC the ideal solution

for upgrading to the industry’s latest technologies. The

PCMU MSOC is a retrofit solution based on REF615 relay

from the proven Relion® family. The 615 series relays are

characterized by their compact and withdrawable design.

1 LCD SCREEN

Pressing any push button will wake up the LCD and display the heading corresponding to the “Hot Button” label

inside the push button – WAKE, MNTR, SETP, CNFG, COMM, UTIL, or VR.

2 EXIT/WAKE Push button

The EXIT WAKE Push button wakes the LCD from sleep mode and begins scrolling through a list of user pro

grammed metered/calculated values.

3 VR Pushbutton

Activates the user defined Voltage Reduction Steps

Shortcuts/arrows

4 SETP

Access to the Setpoints screens

5 MNTR

Access to the Monitoring screens

6 ENT/UTL Push button

Access to the Utilities screens and enter button

7 CNFG

Access to the Configuration screens

8 COMM

Access to the Communication screens

9 LEDS

See page 2

10 USB Port

Out of Band High Voltage

11 Smart FlashCard Slot

Used for loading and saving setpoints, DNP files and IEC 61850 CID files, saving datalog, SOE and OSC files, clone

saving and uploading, updating firmware, saving Wakeup screen parameters and all metering parameters,  and can

be used as an Access Code Key.

Features

− Front‑Panel Voltage Reduction 1 & 2 Inputs as well as (Bi nary) inputs (3 Steps Total)

− Neutral Position Detect (Binary) and Counter

− Counter Input (Binary) for Regulator applications/Complete

Sequence Input for Transformer applications

− Seal‑in/Switch Status Input (Binary)

−Motor Seal‑In Block/Alarm

− Non‑Sequential/SCADA Block Input (Binary)

− Seal‑in Output (Cooper Applications)

− COM1 (top), RS‑485 and Fiber Optic Port (ST and V‑pin con

nectors available with 62.5 and 200 micro fiber supported)

− COM2 (top), RS‑232 and optional Bluetooth® (user select

able if Bluetooth is installed)

− Communication Protocols include DNP3.0. MODBUS® and

IEC 61850 (IEC 61850 only available with optional ethernet port)

− Key Smart Flash SD Card Slot supporting SD and SDHC SD cards

− Smart Flash SD Card can be linked to one or multiple con

trols providing a physical security “Key” which provides Level

2 User Access to the control when the SD Card is inserted

for settings manipulation

− Supports Station and Feeder Level DNP addressing in addi

tion to individual addressing for Smart Grid applications

−One pushbutton access to user configurable Wakeup screen

for manual data recording with Smart Flash SD Card saving feature

− Power Quality which consists of:

− Sequence of Events Recorder (132 events)

− Data Logging

− Harmonic Analysis

−Oscillography

− CBEMA monitoring to detect sags and swells and trigger

data collection and alarming functions

− TapPlot® Oscillograph Data Analysis Software

− Individual Tap Wear Alarm

− Run Through Neutral, Automatic reversing switch swiping

− Remote Voltage Bias

Note: All brand or product names appearing in this document

are the trademark or registered trademark of their respective holders.

− Tap Position Knowledge by:

− Contact KeepTrack™

− Shaft Coupled KeepTrack™

− Resistor Divider KeepTrack™

−Motor Direct Drive KeepTrack™

−Operations Counter

− Resettable Operations Counter

− Tap Position Record

− Auto/Off/Manual Switch Status via SCADA

− A or B Regulator Type Selection

− Control Voltage Input

−Motor Power Input

− Source Voltage Input

− Line Current Input

− Raise Output

− Lower Output

−Motor Current Profiling

− Up to 30 unique 15 character User Access Codes (Level 1 or Level 2)

− 20 Character by 2 Row LCD or optional Vacuum Fluorescent Display

− “Hot Buttons” provide quick access to setpoints, configura tion and communications

− TCC600 Communications Software

− Adapter Panel Auto/Manual Switch Manual control outside of microprocessor

− Front USB 1.1 Communications Port

− External Inhibit of Auto Tapchange

− Circulating Current Input with Circulating Current, optional

∆VAR® Paralleling Methods including Peer to Peer ∆VAR

− Paralleling, and optional Master/Follower (peer to peer) Paral leling (requires Ethernet)

− Front Panel LEDs for Out‑of‑Band Raise, Out‑of‑Band Lower,

Reverse Power Flow Rev Pwr Detected, ALARM in effect,

Voltage Reduction V/RED in Effect, CPU OK, Auto Operation

Block MANUAL, SCADA Control blocked LOCAL and Com1 TX and RX

Features

The TCC300 includes the following features and can be used for

LTCs or regulators where SCADA communications are desired.

− Adjustable Bandcenter

− Adjustable Bandwidth

− Adjustable VAr Bias (Step and Linear Methods)

− Line Drop Compensation, R, X and Z Compensation with ±72 Volt range

− Time Delay, Definite and Inverse

− Intertap Time Delay

− Four Settings Profiles

− Selectable Outputs, Continuous or Pulsed

− Reverse Power Operation with eight control selections includ

ing a distributed generation mode and Smart Reverse Power

Operation with two Auto Determination modes

− CT to VT Phasing Correction

− Real‑Time Metering of measured and calculated parameters (Single/Three‑Phase)

− Demand Metering with selectable time interval

− Drag Hands Operation

− Adjustable Line Overcurrent Tapchange Inhibit

− Voltage Limits

− Tap Position Limits

− Auto Runback (due to overvoltage)

− Auto Runup (due to undervoltage)

− Three independent Voltage Reduction Steps

− Smart Voltage Reduction

− Fast Voltage Recovery

− Sequential and Non‑Sequential Operation

− VT Ratio Correction

− Self‑Test Alarm Output Contacts

− User Programmable Alarm Contacts

Benefits

− Adapter panels to retrofit popular industry tapchanger controls

− USB 1.1 Communications Port for quick field‑updatable programming

− Smart Reverse Power detection/operation with VT configura

tion for source and load sides

− Demand metering/Data Logging with Date/Time Stamp (Single/Three‑Phase)

− Harmonic Analysis

− LDC with R & X or Z‑compensation

− SCAMP (SCADA Controllable Auto/Manual Pushbutton)

Adapter Panel Auto/Manual Switch State can be changed by

a SCADA command

− Sequence of Events Recording

− SCADA HeartBeat

− Smart Flash SD Card

− Source PT Voltage Input

− CBEMA Monitoring

− VAr Bias for downstream coordination with capacitor controls

− Tap position knowledge by four KeepTrack™ methods

− Transformer paralleling by circulating current, Master/Follower

(peer to peer) circuitry, or ∆VAR® methods

− LCD display (rated –20 to +70 degrees Celsius) or Vacuum

Fluorescent display optionally available (rated ‑40 to +80

degrees Celsius)

− Optional Control Power Backup Input for Fiber Optic commu

nication loop‑through

− DNP3.0. MODBUS® and IEC 61850 Communications Protocols available

− Optional Ethernet RJ45 or Fiber Optic Ethernet