Archives

The PCMU represents the best choice to replace ABB

legacy relays. It ensures a reliable, seamless upgrade due

to the risk reduction only a wire-alike solution can provide.

It also offers the lowest possible cost of installation in

the market by allowing you to use the existing wiring and

connecting it into the wire-alike terminals*. Additionally,

the time to update drawings after installation is virtually

eliminated since no changes in wiring are required.

PCMU benefits:

− Relion® REF615 technology – Provides the ideal solution

to upgrade ABB’s DPU245. DPU445. DPU2000 and MSOC relays

− Installation time savings

− Pre-designed wire-alike and pre-configured relay solution

to quickly and efficiently carry out the replacement (retrofit)

and minimize downtime

− Wire-alike solutions, plate that contains terminal blocks

with connection to REF615 relay pre-wired based on appli

cation requirements

− Installation can be completed in as little as 40 minutes

− Form & fit– PCMU utilizes the existing cutout; no panel

modifications, cutting, or drilling is necessary (except MSOC)

− Engineering time savings – Save up to 70% of the time

required to update existing drawings after the upgrade

− Eliminate risk of setting conversions – Settings conversion

support is included to ensure your system keeps functioning

properly as soon as the new units are powered on

− Expanded communication capabilities – With the Relion

615. you can use Modbus, DNP3.0. or IEC 61850 for your

communications

− Advanced technology – Upgrade to the latest capabilities in

protection, control, metering, and fault recording

− Reduced risk of human error – Controlled and repeatable

procedure for replacing existing protection relays with modern

protection relay allows users to implement as standardized solution.

Analog inputs

− Three phase currents: 5/1 A programmable

− Ground current: 5/1 A programmable or 0.2 A

− Rated frequency: 60/50 Hz programmable

− Three-phase and ground voltages: programmable nominal

secondary voltage

Binary inputs and outputs

− Two binary inputs standard

− Three to seven programmable outputs

− One self-check alarm output

Communication

− IEC 61850-8-1 with GOOSE messaging

− DNP3.0 Level 2+ over TCP/IP

− Modbus over TCP/IP

− Time synchronization via SNTP (primary and backup servers)

− Optional serial RS-485 port programmable for DNP3.0 Level

2+ or Modbus RTU

− Optional IRIG-B time synchronization

Control voltage

− Option 1: 48 … 250 V dc, 48 … 240 V ac

− Option 2: 24 … 60 V dc

Product dimensions and weights

− Product Dimensions: 6.46” (164 mm) x 6.97” (177 mm) H x

8.68” (221 mm) D

− Product Weight: 10 lb. (4.54 kg)

Tools

− PCM600 2.6 or higher for setting, configuration and data

retrieval

− Web browser based user interface (IE 7.0 or later)

Certificates

− UL Listed product, File E103204

The PCMU MSOC is installed by using modern cutting tools

for fast and clean retrofit. The tool enables a precise quality cut

each and every time.

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.

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.

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.

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.

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.

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.

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.

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

− 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