cummins med voltage switchgear

7/27/2019 Cummins Med Voltage Switchgear

http://slidepdf.com/reader/full/cummins-med-voltage-switchgear 1/12

PowerCommand®

Medium VoltageDigital Paralleling Systems

D

i g i t

a l

P

a r a

l l e l i

n g



THE POWER OF ONE™

Traditional power systems often combine engines, alternators, controls,paralleling

equipment, and switchgear all from various manufacturers. That makes system

integration a challenge and leaves customers responsible for resolving subsequent

job-site problems at install, commissioning, or maintenance.

Cummins Power Generation changes all that. PowerCommand Digital Paralleling

Systems are designed, prototype tested, manufactured, and serviced by one manu-

facturer, who takes responsibili ty for the entire on-site power system – not just one

piece of it.

That’s the Power Of One – one system, with components created to work together,

designed, buil t, pre-integrated,and serviced by one company. The result is reliabil ity,

optimum system performance, and minimum system cost – all backed by the largest

power generation system support organization in the world.

THE SYSTEM WITH NO EQUAL

Today,having a reliable, flexible and easy-to-operate on-site power generation

system is more important than ever before. Reliable – because the costs of power

outages and the consequences of disruptions to your business have never been

greater. Flexible – because your power needs, supply circumstances and utility costs

are dynamic.Easy-to-operate – because the touchscreen controls means information

is presented in an easy to understand format.

Whether your on-site power system is relied on for prime power, emergency back-

up, or for taking advantage of power sharing opportunities with your local util ity,the key to getting all these benefits and more is the advanced PowerCommand

Digital Paralleling System from Cummins Power Generation.

No other system offers all the benefits you get with PowerCommand Digital

Paralleling.From true digital control of startup, synchronization, and bumpless

power transitions – to sophisticated diagnostics, remote monitoring,and network-

ability – PowerCommand Digital Paralleling Systems are without equal.

PowerCommand ®

McMinnville Electric Systems in

Tennessee and Cirent Semiconductor

in Florida, use PowerCommand Digital

Paralleling Systems for peaking and

emergency back-up power, while

paralleling with the local utility.



DIGITAL PARALLELING – A HIGHER STANDARD

In less than 15 seconds, PowerCommand Digital Paralleling Systems can parallel

and synchronize all your diesel and multiple gas-engine generator sets with the

utili ty. And it’s the same fast, consistent performance each and every time.

Only PowerCommand has been designed from the ground up as a true distributed

logic concept: paralleling controls mounted on the gensets, low or medium voltage

power section, and the Digital Master Control for supervisory functions.

Combine these advantages with a smaller footprint, lower system costs, and

easy-to-use intuitive interfaces that share the same data throughout the system,

and you’ve got state-of- the-art performance that is unsurpassed.

APPLICATIONS

PowerCommand Medium Voltage Switchgear is already in service in hundreds of

applications worldwide – including electr ic generation and distribution systems,

industrial plants, commercial buildings, hospitals,wastewater treatment plants,transportation systems, and pipeline stations. This class of switchgear protects

transformers,motors, generators, capacitors, distribution lines, and feeder circuits.

PowerCommand Medium Voltage Switchgear can also be specified to provide critical

main service entrance protection and controls in these applications.

MODEL 150

ISOLATED BUS APPLICATIONS

The Model 150 Master Control provides

all the functionality of traditional controls

with a simpler design that is easier to

use.

MODEL 200

ISOLATED BUS APPLICATIONS

The Model 200 has expanded graphics

capabilities, optional networking, data

logging, and dialout alarms and event

reporting for isolated bus applications.

MODEL 300

INFINITE BUS APPLICATIONS

Offers all the features of a Model 200,

plus the flexibility to parallel with single

to multiple utility sources.

for true power system reliability,flexibility, and ease-of-use.

Power Command System Legend:

Network / SCADA wires

Control wires



Digital Paralleling

A LEAP FROM TRADITION

Paralleling equipment from many manufacturers, looks, works and uses many of the

same components as it did 25 years ago.But PowerCommand brings your power

systems into the 21st Century. Its power, simplicity,and ease of use are obvious

from even a quick inspection of the hardware.

Rather than hundreds of components wired in custom-manufactured switchgear

lineups, our digital paralleling equipment has revolutionized the way paralleling is

designed and manufactured.All Cummins Power Generation Digital Master

Controls are designed and manufactured around standardized control blocks for

increased reliability. As a result, PowerCommand systems deliver better performance

with increased functionality. And they use fewer components, taking up to 40% less

space, and are easier to service than tradit ional systems.

The PowerCommand digital paralleling control is serviced with a PC-based tool,

InPower™, that allows diagnosis,data monitoring,and adjustment of all control

functions – even governing, synchronizing, and voltage regulation. Since adjust-

ments are possible via modem, factory-based technicians can directly connect and

evaluate problems.

DIGITAL MASTER CONTROL – STANDARD DESIGN

The standardized design uti lizes distributed logic to form a series of basic modular

units,control packages, and instrumentation. For most switchgear ratings, circuit

configurations and functions, one basic size unit is used. This design provides

application flexibil ity, reliabili ty, efficiency, and economy by minimizing

engineering time to plan and lay out the switchgear.

With PowerCommand Digital Master Controls the genset performs all paralleling

functions, the digital master control automates load add/shed, data logging, and

operator interface and the switchgear provides basic circuit protection, and

electr ical switching functions. Components are neutralized, increasing reliabil it y.

So single component failure cannot bring the entire system down.

Controls for most paralleling equipment

are a maze of meters, switches and

cryptically labeled lamps that many

operators never figure out.

PowerCommand Digital Master Control

features an easy-to-use touchscreen

with more operational and diagnostic

information for operators.

TODAY’S USER-FRIENDLYTOUCHSCREEN CONTROLS

TRADITIONAL OPERATORCONTROL PANEL



RELIABLE

Fewer parts mean fewer failures, and when compared to traditional paralleling control systems, the

Digital Master Control represents a 20-fold decrease in the number of components and wiring.System

reliabili ty is based on a standard design platform. Reliabili ty through repeatabil ity – that is the simple

premise behind the Cummins Power Generation Digital Master Control.

EASY TO USE

The Digital Master Control uses an interactive touchscreen, housed in a compact enclosure,not a large

complex looking gear-mounted control. Instead of flashing lamps,multiple switches and swinging needles,

you’ll see simple graphical displays and instructions.Messages are prioritized and everything is in one

location. Models 200 & 300 incorporate the system drawing and operation manual into the touchscreen.

All this makes it easier to respond to emergency conditions and maximize up-time.

FLEXIBLE

Powered by a full-featured industrial PC, the color touchscreen on Models 200 & 300 makes it easy to

program and update with a commercially available Windows®-based software platform. The PC

platform makes it easy to interface to existing media, like Ethernet, so you can transmit information

without creating an all new infrastructure. In fact, any place you can put a computer, you can locate a

redundant operator interface to monitor the power system.

A new standard of control.

ONELINE DIAGRAM

s Permits operator to understand the

entire power system at a glance.

s Graphic and audible indication of

alarms, trips, warnings, and shut

downs provide alerts to changing

system dynamics.

s Flashing task bar indicates active

alarms.

s Online Help available to all operators.

s Menu button allows for easy system

navigation.



GENERATOR DATA DISPLAY

sGraphically display 21 generator

parameters in Digital or Analog format.

sBar graphs visually highlight normal,

warning, and shutdown status.

sChart function allows for easy

graphing and data logging of all key

system parameters.

sGraphical representation of system

characteristics:

– Single lines

– 11 AC metering values

– 10 Critical engine status parameters

– Number of systems starts

– Engine hours

– Event logging

– Time/date stamp

Digital Generator Data Display

Analog Generator Data Display

PowerCommandDigital Master Control



s PowerCommand Master Control

The PowerCommand MasterControl is a state-of-the-

art, microprocessor-based paralleling system used

with PowerCommand paralleling generators sets and

switchgear in medium voltage applications.

s Redefining reliability

Distributed logic design enables each individual

system component to remain fully functional even if

the Digital Master Controller fails. Improves system

reliability and reduces maintenance costs.

s Construction

Rugged 12-gauge sheet metal with rust-inhibiting

finishes.Control components are isolated or shielded

from live components.

s Touchscreen

High-resolution color touchscreen allows quick

access to system operation and information,

including one-line diagram.

s AC Output Metering

RMS AC metering transducers provides input via a

serial link to the system PLC so AC metering data

can be displayed on the touchscreen.

s Easy To Service

PowerCommand’s digital controls interface directly with

the generator set and run continuously.They provideself-diagnostics, event reporting, and detect failures

even when the system is not in use.

s Modularized Design

The simplified layout and easy wiring allows for

easy service and expansion. All modules are

bench-wired and tested. Standard interconnects

and parts increases reliability.

built for the real world.

s Padlockable

access handles

s 15" Color PC-based

touchscreen

s Angled panel for

easier viewing

s Genset interface

s System PLC

with optional sync

• Hot standby

• PLC Tap for quick

network connection

s Transducers to meter

import/export levels

s “Best” battery supply

to PC and PLC

s Load add/shed plates module

s Generator/utility transfer

pair module



s Voltage Transformers. Front

accessible, drawer-mounted voltage

transformers can be completely with-

drawn on extension rails. For operator

safety, the voltage transformers are

disconnected and grounded when

moved to the withdrawn position.

s Control Power Transformers.

Control power transformers rated up

to 15 kVA are drawer mounted and

can be completely withdrawn from

the front of the switchgear for ease

of maintenance. A secondary circuit

breaker mechanical interlock is pro-

vided and must be opened before

the transformer can be withdrawn

for access to primary fuses.

s Horizontal Drawout Circuit

Breaker. VR vacuum circuit breakers

feature a horizontal drawout design.

Test/disconnected and test/connect-

ed positions are provided.

s Hinged Front Door. Relays and

metering instrumentation are mounted

on the doors in standardized arrange-

ment to satisfy customer requirements.

Each breaker compartment door pro-

vides a racking access port to allow

moving the circuit breaker to or fromthe connected position with the door

closed. (Option for single full-height

door with one-high configuration.)

PowerCommand VacuumMetal-Clad Switchgear

sMechanical interlocks

s Disconnect type voltage transformers –

CPT and VT

sGrounded breaker truck in and between

test/disconnected and connected positions

s Low voltage instrument/control compart-

ment isolated from primary voltage areas

RATINGS:

s 4.76-15 kV (to 13.8 kV nominal)

s 1200-3000 Amperes

s 250-1000 MVA Interrupting capacity

s 60 and 95 kV BIL

s Indoor and outdoor enclosures

STANDARD FEATURES:

Metal-Clad Switchgear as defined by

ANSI C37.20.2 includes:

s UL-Listed

s Fully compartmented construction

sGrounded metal barriers enclose all

live parts

sAutomatic shutters

s Insulated bus

PowerCommand Sw



s Frame and Housing. Precision-formed steel frames and inner panels,

finished with a superior TGIC poly-

ester powder coating process, provide

a strong rust-resistant structure with

rigid alignment of components.

sAutomatic Shutters. When thebreaker is withdrawn from the con-

nected position, the racking mecha-

nism linkage positively rotates the

grounded metal shutters into a

position that covers the energized

components.

s Main Bus Barriers. Main bus barri-

ers between bays are track-resistant,

flame retardant glass polyester.

Optional porcelain inserts are avail-

able with the glass polyester barriers.

s Main Bus and Insulation. Main

bus and runbacks are insulated with

a track-resistant, flame retardant

epoxy coating produced by the

fluidized bed process. Bus support

standoff insulators are glass poly-

ester rated at 5 kV and porcelain

rated at 15 kV. Bus joints are insu-

lated by vinyl boots. Access covers

and provided for main bus inspec-

tion from front and rear.

s Compartment Barriers. Grounded

metal barriers separate the main

compartments – breakers, main bus,cable, instrument/relay (low voltage

area), and auxiliary (VT and/or CPT).

s Cable Space. Top or bottom power

cable entry space is provided.The

quantity of cable termination devices

and space for surge arresters vary

with the ratings of breakers selected

for each vertical section.

Side view with side cover

sheet removed

s Racking System. A high quality gear-driven racking

mechanism is center-mounted on the cell floor, providing

balanced movement of the breaker between cell positions.

The racking system is coordinated with safety interlocks

to prevent movement of the breaker unless main con-

tacts are in the open position.

chgear Components



More power to you

VR-05025-12 250 4.16 1200 4.76 1.24 3.85 19 60 29,000 33,200 36,000 1.2 36,000 58,000 3

VR-05025-20 250 4.16 2000 4.76 1.24 3.85 19 60 29,000 33,200 36,000 1.2 36,000 58,000 3

VR-05025-30* 250 4.16 3000 4.76 1.24 3.85 19 60 29,000 33,200 36,000 1.2 36,000 58,000 3

VR-05035-12 350 4.16 1200 4.76 1.19 4.0 19 60 41,000 46,900 49,000 1.2 49,000 78,000 3

VR-05035-20 350 4.16 2000 4.76 1.19 4.0 19 60 41,000 46,900 49,000 1.2 49,000 78,000 3

VR-05035-30* 350 4.16 3000 4.76 1.19 4.0 19 60 41,000 46,900 49,000 1.2 49,000 78,000 3

VR-08050-12 500 7.20 1200 8.25 1.25 6.6 36 95 33,000 37,800 41,000 1.2 41,000 66,000 3

VR-08050-20 500 7.20 2000 8.25 1.25 6.6 36 95 33,000 37,800 41,000 1.2 41,000 66,000 3

VR-08050-30* 500 7.20 3000 8.25 1.25 6.6 36 95 33,000 37,800 41,000 1.2 41,000 66,000 3

VR-15050-12 500 13.8 1200 15.0 1.30 11.5 36 95 18,000 19,500 23,000 1.2 23,000 37,000 3

VR-15050-20 500 13.8 2000 15.0 1.30 11.5 36 95 18,000 19,500 23,000 1.2 23,000 37,000 3

VR-15050-30* 500 13.8 3000 15.0 1.30 11.5 36 95 18,000 19,500 23,000 1.2 23,000 37,000 3

VR-15075-12 750 13.8 1200 15.0 1.30 11.5 36 95 28,000 30,400 36,000 1.2 36,000 58,000 3

VR-15075-20 750 13.8 2000 15.0 1.30 11.5 36 95 28,000 30,400 36,000 1.2 36,000 58,000 3

VR-15075-30* 750 13.8 3000 15.0 1.30 11.5 36 95 28,000 30,400 36,000 1.2 36,000 58,000 3VR-15100-12 1000 13.8 1200 15.0 1.30 11.5 36 95 37,000 40,200 48,000 1.2 48,000 77,000 3

VR-15100-20 1000 13.8 2000 15.0 1.30 11.5 36 95 37,000 40,200 48,000 1.2 48,000 77,000 3

VR-15100-30* 1000 13.8 3000 15.0 1.30 11.5 36 95 37,000 40,200 48,000 1.2 48,000 77,000 3

Type of Breaker

Asym-

metrical

Rating

Factor3

Short

Time

Rating

3 Sec.

Amps.-

rms

Close &

Latch

Rating

Amps.-

rms3

Inter-

rupting

Time

Cycles

Nominal Rating

Three Voltage

Phase kV-

MVA rms

Rated

Cont.

Current

60 Hertz

Amps.-

rms

Rated Voltage

Max Min

Voltage Range Voltage

kV- Factor kV-

rms K rms

Insulation Level

Rated Wi thstand

Low Impulse

Freq. 1.2x50µS

kV- kV-

rms Crest2

Interrupting Ratings1

Amps. - Symmetrical

Max. Nom. Min.

kV kV kV

Amps.- Amps.- Amps.-

rms2 rms rms

CIRCUIT BREAKER RATINGS DATA CHART

Breaker Identification

VR 05 025 12

* Availability to be announced.

x For interrupting current ratings at operating voltages

other than those listed, used the following formula:

The calculated current should not exceed the maximum

interrupting current rating, Imax:

Imax =K xIVmax

y These values apply with circuit breaker in or out of enclosure.

➂ Rated Short Circuit Current (at rated Max kV).

➃ Rating factor is based on breaker speed from initiation of trip sig-

nal to contact parting, allowing for 1/2 cycle relay time.

To obtain the asymmetrical current interrupting capacity of the

breaker, multiply the symmetrical current by 1.2.

➄ Close and Latch Rating (Momentary) Amps rms =(1.6K)(Rated Short Circuit Current). Additional Close and Latch Rating in

kA Crest =(2.7K) (Rated Short Circuit Current).

Iop =

Vmax

Vopx

IVmax

Continuous Current Rating

MVA Rating

Voltage Rating

Breaker Type



B ll ti F 1442

The Power of One™

Visit at www.cumminspowergeneration.com1400 73rd Avenue N.E., Minneapolis, MN 55432

Phone: 763-574-5000, Fax: 763-574-5298

Cummins Power Generation is a registered trademark of Cummins Inc. Power Command and The Power of One are trademarks of Cummins Power

G eneration Corpora tion. C ummins is a registered trad emark of Cummins Inc. All other trademarks are owned by their respective companies.Backfeed to a ut ility system can cause electrocution and/or property damage. D o not connect to any building’s electrical system except through anapproved device or after building main switch is opened.

S ifi i bj h i h i P i d i h U S A 4/02 © 2 002 C i P G i

THE RIGHT POWER FROM THE RIGHT SUPPLIER

Cummins Power Generation is a world leader in the design and

manufacture of power generation equipment, including

PowerCommand Digital Paralleling Systems for switching, control,

and protective applications.We also provide single-source warranty,

planned maintenance, and round-the-clock emergency service 24

hours a day, seven days a week, including back-up rental power

through our network of over 170 distributors in 110 countr ies

around the world.

For more informati on about how PowerCommand Digi tal

Paral leli ng Systems can help meet your power demands, call your

local Cummi ns Power Generat ion Distr ibutor at 1-800-888-6626.

cummins med voltage switchgear

Documents