Motorpact Training Material 2011

MotorpactMV motor starters7.2kV

Web-enabled Power & Control

Motorpact 2007-TL 2

Abbreviations

LPCT Low Power Current Transducer

LV Low Voltage MV Medium VoltageO/L Over LoadPLC Programmable Logic StarterRMS Root Mean SquareRVAT Reduced Voltage Auto

TransformerRVSS Reduced Voltage Soft StartSCR Silicon Controlled RectifiersSSM Soft Starter ModuleATM Auto Transformer ModuleS3 Sequential Smart StarterFVR Full Voltage Reversing SSM Soft Start Module

TVSS Transient Voltage Surge Suppressor

VSD Variable Speed DriveVPIS Voltage Presence Indicator

SystemVT Voltage Transformer

(Potential Transformer)CPT Control Potential TransformerCTD Capacitor Trip Device

Motorpact 2007-TL 3

MV motor starter Rated voltage

7.2 kV

Short Circuit withstand 40kA/3s or 50kA/2s

Motor range Up to 3800 kW

Motor type Asynchronous (Squirrel cage)

Starter : FVNR RVAT RVSS

Enclosure types Up to IP 3X or 4X Arc resistant Optional: roof for IP X2

Motorpact 2007-TL 4

Motorpact = low cost of ownership

Low installation cost

Space saving footprint High reliability Reduced maintenance Easy to use Safety focus Global product

(meets IEC and NEMA standards)

Motorpact 2007-TL 5

Low installation cost

2 unit pre-assembled shipment available shipment in units pre-assembled of 5 FVNR reduces installation time and labor minimizes risks field installation errors

Integrated low voltage wireway simplifies field wiring and installation of protection, control

and communication

Front and rear access to cable compartment simplifies field wiring and installation of protection, control

and communication

Low cost of ownership

Motorpact 2007-TL 6

Space saving footprint

400A FVNR 375 mm wide Perfect for retrofit or extension Floor space maximum economy Two FVNR single tier more compact

than one double tier


375Depth : 946 mmHeight : 2300 mm

Motorpact 2007-TL 7

High reliability

Disconnector housing and contactor cradle moulds

Fewer bolted connections and parts Simple component-to-component support

assemblies

Fewer busbar connections Requires only two-bolts per phase for

a main bus connection

Pre-engineered solutions with LPCT and Sepam digital relay

Provides proven designs for the full range of motor applications

KEMA Certified


Motorpact 2007-TL 8

Auto Transformer Module (ATM)

Reduced Voltage Auto Transformer Non-Reversing (RVAT)

FVNR Module

Full Voltage Non-Reversing (FVNR)

Mechanically Latched Magnetically Held

Soft Start Module (SSM)

Reduced Voltage Soft Start Non-Reversing (RVSS)

FVNR Module

FVNR & ATM & SSM descriptions3 types of Motorpact starters

Motorpact 2007-TL 9

N

e

t

w

o

r

k

Protection LoadMotor

FVNR base module descriptionDirect stator starting on full voltage Locked rotor current on starting is around 4 to 7 In

depending on motor characteristics Starting time of 1 to 10 seconds depending on the

moment of total inertia (motor + machine), motor torque and load torque

The network must be able to withstand the starting current without disturbing other loads

The machine being driven must be able to withstand the mechanical impact due to the motor torque

This mode is very popular (simple, robust, not expensive)

Main contactor

Motorpact 2007-TL 10

N1

N

e

t

w

o

r

k

Ct3

Ct2

Ct1

Protection

LoadMotor

Auto Transformer module descriptionReduced voltage by auto-transformer

This system is recommended for high power motors. It has the advantage of not dissipating energy.

It can be used to obtain, for the same decrease in current, less reduction in torque than with the reactor starter.

Auto-transformer

CT1 : Start ContactorCT2 : Main Contactor CT3 : Run Contactor


Soft starter setting: torque control

T1 = k.I1 1

LoadMotor

Network

Pro. Soft starter

Reduced Voltage SoftStart motor starter (RVSS)SoftStart motor starter provides smooth, stepless acceleration and deceleration regardless of the load.This starting method lowers the starting current of the motor, reduces electrical stresses on the network and the motor.It reduces peak starting torque stresses on both the motor and mechanical load components, thereby providing longer service life and less downtime.


Soft starter setting: usual setting


FVNR & ATM descriptions Starting mode selection table

RVSS

Network requirement

- accepts the current oscillation during an open transition?

-accepts the starting reactive consumption power?

Investment Increase

- deceleration control ?

- constant torque with high starting torque as crushers, grinders, mixers ......

- the drive between motor and loadis able to withstand the mechanical stress of a direct on line start

- accepts full starting current?- accepts starting voltage drop?

yes

yes

yes

yes

no

no

no

nono

no

yes

yes

no

no

- accepts the harmonics during the starting period

VSDspecific

no

FVNR RVAT

yes

yes

yes

Motor & Load requirements


OTHER TYPE OF MOTORPACT PANEL

750

2300

2S2W: 2 Speed 2 Windingfull voltage non reversingasynchronous motor starter


OTHER TYPE OF MOTORPACT PANEL

750

2S1W: 2 Speed 1 Windingfull voltage non reversingasynchronous motor starter (Star delta starter)

375 750

2300


S3: Sequential Smart Start reduced voltage non reversing asynchronous motor starter

375 750 750 750


Dimension and weight

FVNR RVAT RVSS


Maximum motor ratings*

200 AService Voltage kW (single fuse)3.3 kV 9005.5 kV 15006.6 kV 1800400 AService Voltage kW (single fuse) kW (double fuse)3.3 kV 950 19005.5 kV 1600 30006.6 kV 1900 3800

*Maximum Rating depend on full load current, locked rotor current and run up time of motor.


MotorpactTM MV motor starter

Case : DOL (FVNR) Starter connected to the load as follow: Motor power : 750 kW Service voltage : 3.3 kV Freq : 50 Hz Cos Q : 0.85 Motor efficiency : 0.96 Service factor : 100% (Load Factor: 1) Starting current : 5 In Starting time : 10 s Number start per hours : 3

Questions?How many ampere motor current ?How many ampere rating of the contactor ?How many ampere rating of the fuse ?

Fuse calculator


MotorpactTM MV motor starter

Low voltage compartment (A) Disconnector (B) HRC fuses (C) Vacuum contactor (D) Complete motor protection

with Sepam digital relay or others (E)

A

B

C

D

E


Easy to use

All controls located at the same convenient operator height

Disconnector operator & pilot devices

Disconnector position viewing window Visible isolation and earthed indication

at eye-level Optional back-light to view contact position

Simple direct drive disconnectormechanism

Ensures reliability and operator ease

Mechanical interlocks Prevent access to MV compartment

when the unit is energised


Viewing window


Operating panel

Disconnector Closed Disconnector Open


Disconnector

2 positions Closed and Earthed

Positive operation Earthed position by spring

operation Interlocked to close

MV door closed and contactor open

Visible contacts Back-light for easy viewing

(optional) Supports top fuse holders


Voltage Presence Indication System (VPIS) (option) Line side available for

Incoming cubicle(directincoming)

Load side available at load terminal pads of motor starter


Safety focus

Loss of service continuity category LSC2A

Partition Class PI(Cable earthing switch required)

Closed door operation (only if MV door close)

Electrical and mechanical interlocks Arc resistant type AFLR (optional) Cable earthing switch (optional) Voltage Presence Indication System

(optional)



Key InterlockLow cost of ownership

DiSCONNECTOR KEY LOCK :Lock open only, key captiveMax 2 key lock

EARTH SWITCH KEY LOCK :Max 1 key lockOpen or close lock

LDA Key lock

Disconnector key lock


Busbar compartment

Busbars up to 3150 A Bar cooper bar (standard) Tinned coated busbar (option) Silver coated busbar (option)

Encapsulated/heatshrink busbars are available as an option

Mounted and supported by the disconnector

Short time withstand 50 kA 2s 40 kA 3s 31.5 kA 3s 25 kA 3s


Busbar

Spacer (intermediate panel)

Main Busbar

2000-2500A1250A 3000-3150A

Intermediate Insulator support


Busboot

Intermediate bus boot For rating : 630A,1250A,2500A, 3150A Disconnector or Insulator

End bus boot For rating : 630A,1250A,2500A, 3150A Disconnector or Insulator


Main busbar jointing


Load compartment

Accessible only if contactor open and disconnector and cable are earthed

Comprises :1. HRC fuses2. vacuum contactor3. LPCT4. cable termination optional :

A. cable earthing switch with position viewing window B. Control Power Transformer C. Voltage Presence Indication System D. Fuse blown indicator

2

14vA

Bv

3

CD


LPCT or CT mounted on contactor (fixed contact mould assembly)

Load compartment - instrument transformers

Optional fused CPT (floor mounted)

Optional VT for protection and meteringCPT


Load compartment - MV fuses

HRC DIN fuses independently mounted Easy to inspect and maintain Stricker blown fuse indicator Supplier: Fusarc(Schneider), SIBA, Bussman, Fuses for motor or non-motor loads 2 x 250 A Maximum

Fuselogic Blown-fuse Indication (optional) With viewing window in door Blown-fuse fuse protection 2 Fuse blown aux contacts (SPDT)


Load compartment - contactor In : 200 A and 400 A Withdrawable contactor truck Patented finger design Compact and lightweight

20 kg - easy to handle Independently mounted from power fuses Contactor removed only for maintenance

Magnetically held or mechanically latched Mechanically Close Open indicator Mechanical operating counter Aux power supply AC or DC,with range:

DC range: 100/125 240/250V andAC range:115/120 230/240 (+10% ~ -15%). Voltage selection by using dip switch inside the contactor

AC or DC aux power supply: internal supplied by CPT(AC) or external (AC or DC)

Open release (for mech.latch) with DC supply only (48V, 125V and 250V).Additional tripping capasitor for AC aux supply (120VAC and 240VAC)

Capasitor Trip (optional) install when using mech. Latched contactor and internal supply from CPT.

Mismatch location


Contactor aux Contact Additional Aux contact


Contactor finger assembly Patented finger design Tests Temperature rise

400 A continuous

Mismatch/Blocking Contactorrating and type mismatch

200 A unlatch

200A latch 400A unlatch

400A latch


Contactor to outgoing terminal Cable : 200A 400A Differentiation by

means blocking truck/mismatch

Mismatch/Blocking Contactorrating and type mismatch

200 A unlatch

200A latch

400A unlatch

400A latch


Load compartment - contactor

Standard Operation for Magnetically held contactor



Standard Operation for Mechanically latch contactor w/o CTD



Standard Operation for Mechanically latch contactor with CTD


TEST POSITION in MOTORPACT

1. Open Disconnetor switch

2. Supply aux power from external3. Contactor still connected4. Test the operation by control pushbutton sepam

External supply

K1K1

From CPT

Aux contact


Low voltage compartment

Ample space for : Sepam series 20/series 40

and series 80 digital relay or Multilin PowerLogic Power Meter

or Circuit Monitor Control devices

Isolated from other compartments(busbar and load compartments)

Integrated low voltage wireway (*) simplifies field wiring and installation of

protection, control and communication

Customer connection


Motorpact aux contactsDisconnector switch aux contacts(Q1) : 4 SPDT , additional : 4 SPDT Fuse blown /Fuse logic aux contacts(FU1) : 2SPDT Earthing switch aux contacts (Q21): 4 SPDTMain contactor aux contacts (K1): 3NO+3NC, additonal : 3NO+3NC

Note: SPDT stand for single pole double trip


Motorpact contact resistance

Descriptions Nominal valuesDisconnection Swicth 450 micro Ohm

Busbar to the outgoing terminal 50.000 micro Ohm (including DS, VCU and outgoing terminal) (50 mili Ohm)

Vacuum Contactor upper pole to lower pole (without load cable)

< 200 micro Ohm



Connected position Withdrawn positionRail extended


Load compartment - cable termination Front access or front and rear accessibility

simple cable termination with rear access

Full height cable pulling area Load cable box allows for up to 1-240 mm2

or 2- 120mm per phase Formex cover over cable terminations

provides coverage at cable terminations


Typical cable termination

Top and Bottom cable connection Line connection and load connection


Typical cable termination for single section and single controller

Top and Bottom cable connection


Load compartment - cable earthing switch(option)

Load cable termination

Cable earthingswitch

Formex cover


Top cable clamp assy

Top cable assy3 or 6 single core cable

Top cable assy1 or 2 cores cable


Lower cable clamp assy

Top cable assy3 or 6 single core cable

Lower cable assy2 cores cable


Predictive maintenance

Thermal diagnosis system (optional) Improved power availability

detects abnormal temperaturerise at the heart of power circuit

Increased safety of electrical installation help to prevent damage to the installation

(deterioration can lead to an internal arc) Continuous monitoring of temperature rise

reduces maintenance costs no local human intervention.

Sensors installed in the sensitive areas cable connexions top MV fuses holders

Activates 2 trip levels pre-alarm threshold alarm threshold


Hold at the moment this offer


Temperature monitor module (DT1)

Provides continuous monitoring of joints in the equipment for predictive maintenance


POWER FACTOR CORRECTION CAPASITOR

3 phase capacitors without internal fuse Possible for FVNR with 750mm width Be careful for RVSS and S3


Enclosure - internal arc withstand (option) Tested at KEMA

following IEC 62271-200 standard in all MV compartments

Protection on all 4 sides by pressure venting to the top

25 kA 1s 40 kA 0.5s 50 kA 0.25s

Tunnel for ceiling below < 4m

With IP X1


Enclosure IPX1 (option)

IPX1 : Tunnel + roof No top entry cable (standard) non std for top entry


Enclosure main earth bar


Enclosure - internal arc withstand (option)

8-point latching door

Heavy-duty vault style door handle

Interlocking of hinge side

DoorFrame


Enclosure - internal arc withstand (option) Pressure relief flaps

Bolted rear panelsTop View

Interlocked rear panel to frame construction Top and Bottom Access Panels Easy Removal


Joining the shipping splits


Sepam series 20, 40 and series 80

Protection functions 50/51, 50N/51N, 46 49 R 38/49T 37, phase undercurrent 48/51LR, excessive starting time and locked

rotor 66 starts per hour

Options User Machine Interfaces Logic I/Os Communication interfaces Temperature monitoring Analog output


current sensor (standard CT) One block sensor consits of 3 CTs Low burden < 2.5VA (ratio 50A) Protection class : 5P5 and 10P5 Metering class : 0.5, 1 and 3 Single depth and Double depth (


Low power current transducer (standard LPCT)

One sensor for all applications (50A ~ 400A)

High accuracy for protection and metering

Linear across a wide current range

Saturation value above 16 kA

2500/1 0.5625

100A / 22.5 mV Sepam

Measuring andProtection

5A 20A 100A 800A 1000A 16000 A0.5%

0.75%

1.5%

5.0%

10.0%Accuracy


Control Power Transformer (CPT) Auxiliary Control Power supply :

External DC or AC supply Internal AC supply by using CPT

CPT or VRCR(small burden:200VA) Power CPT : 300VA, 500VA, 750VA and 2000VA MV Primary fuse for CPT (Ph-Ph) : 0.63A, 1A, 2A and 3.15A.

Ferraz fuse. Fuse holders are loacated below the contactor.

Secondary of CPT is protected by MCB Primary Voltage : 2400V, 3300, 4160, 4800, 5000, 5500,

6000V, 6600V,6900V

Secondary voltage: 110/220V (dual voltage) Freq: 50/60Hz

CPT & VT Fuse holder


Voltage Transformer (VT) Voltage for metering device or protection relay Power Output: 50VA/Phase (100VA) at 30 deg. C.

Accuracy : 2.4% at 15VA Primary VT is protected by MV fuses Secondary side is protected by MCB Primary Voltage : 2400V, 3300, 4200, 4800, 5000, 5500,

6000V, 6600V,6900V(6300V under development) Freq; 50/60Hz Insulation level : 6.9kV (60kV BIL) Secondary voltage: 110V

CPT & VT Fuse holder


Fuse tube

Fuse holder for primary fuse of CPT or/and VT Long tube : (20mm x 190mm) for voltage > 5.5kV Short tube : (20mm x 127mm) for voltage < 5.5kV

Thermal rating max : 5A . Insulation level : 6.9kV (60kV BIL) No special tools to remove or insert the MV fuse Located below the contactor chassis


Ground Fault sensor

With Sepam relay If solidly Grounded (low resistance)

ZCT 50/5A(AAF00309) + CSH 30 or CSH 120 or 200

If High Resistance Grounded (un grounded system) CSH 280 (470/1 - AAF 00311) + Resistor for zero sensor

Others relay (Without Sepam relay ) If solidly Grounded (low resistance)

ZCT 50/5A If High Resistance Grounded (un grounded system)

Zero seq. Sensor 2000/1 (AAF00310) or Zero seq. Sensor 50/0.025 (AAF00308)

Note: the above sensor is installed on the same place of the block CT

AAF00309AAF00311AAF00310AAF00308

CSH 120/200


Surge Arrestor Distribution Class and Intermediate Class

distribution class : near the load (low kA) Intermediate class : outgoing feeders with

several downstream feeders (high kA) Line side or Load side

Line side : install on the busbar side Load side : install on the cable load side

Rated Voltage : 3kV, 6kV and 9KV 6kV for service voltage : < 5kV 9 kV for service voltage : > 5kV


MV motor starter FVNR basic single line diagram

HRC fuses

Withdrawable vacuum contactor

LPCT

Cable earthingswitch (optional)

Sepam series 20,40 or 80

Disconnectorclosed/ earthed


MV motor starter FVNR with options

Second set of CTs

Control PowerTransformer

CPT fuses


Reduced Voltage Solid State (RVSS)

Ranges 2300V up to 2300kw 3300V up to 3400kw 4160V up to 4300kw 6900V up to 7100kw

50 / 60 Hz

Full Digital Control

Motorpact Soft Start


Reduced Voltage Solid State (RVSS)

Advanced Motor Protection Options:

Ground Fault RTD modules

Heavy Duty Silicon Control Rectifier (SCR) stack

Arc Resistant

Motorpact Soft Start


Motorpact RVSS - HMI Full digital control

LCD operator interface Non-Volatile memory

Digital sequencer Ensures proper contactor sequence

Fiber-Optic isolation between digital controller and

power module/SCR Metering functions

Voltage Current Power Factor KVAR kW


Pumps Blowers Compressors Chillers Fans Chippers

Ball Mills Rod Mills Conveyors Natural Gas Compressors Centrifugal Blowers Other Applications

Motorpact Soft Start Controller Applications


Protect the Motor and Load Reduce Mechanical Stress Limit Starting Current Reduce Stress on the Electrical Grid Reduce Electrical System Disturbance Provide Soft Stopping

Meter and Record Communicate

6 Goals Beyond On-OffMotorpact SoftStart


Benefits

Eliminate Torque Shock Damage Prevent belt slipping, coupling damage Increases motor AND drive train reliability

Keep Starting kVA to a Minimum Maintain future flexibility

Soft Start and Soft Stop Pumps Reduce hydraulic / mechanical problems

Low Cost Ratio vs. MV VFDs Can be considered as an alternate in some cases

Motorpact SoftStart


Heavy Duty Ratings 500% for 60 Seconds

Nearest competitor is 500% for 30 sec. 600% for 30+ Seconds

Capable of Class 30 Mill Duty motors 200% for up to 2 Minutes

Allows for long accel times Tested at 50C

Most others tested at 40 C

Motorpact SoftStart


Line disconnectorIsolates motor starter from power supply

Vacuum contactorProvides start sequence to SCR stack (in main contactor cubicle)SCR stackProvides voltage ramp and advanced protection features

By-pass contactorBy-passes the SCR when motor is at full speed

LV controlControl and HMI of motor starter with power system

1

2

3

4

5

1

3

2

4

5

3

4

5

Compartment 1 Compartment 2

Compartment 2

Motorpact SoftStart


High MV to LV Electrical Isolation Magnetic isolation of Gate Pulses Fiber optic isolation

for firing control and signal interfaces

Door Interlocking Isolated LV Compartment

Designed for Safety

Motorpact SoftStart


Sensing Systems

= 28V

= MV

MTRMTR

Magnetic Isolation

OpticalIsolation

= Fiber Optic

= 120V

Gate Drive

Electrical Isolation Diagram

LVControls

Motorpact SoftStart


Reduced voltage auto-transformer motor starter (RVAT)

Line current lower than motor current Provides high torque per A of

line current Medium or heavy duty 3 Contactors Main(1), Run(2), Start(3) Includes surge protection

Provides switching transient protection for autotransformer

50, 65, and 80 % Taps (4) Closed transition from start to run 1125 mm or 1500 mm width. Internal arc withstand Auto Transformer capacity (50Hz)


Reduced voltage auto-transformer motor starter

MAIN CONTACTOR

STARTCONTACTOR

RUNCONTACTOR

AUTO TRANSFORMER

1 2

3

4


M

(A)

(C)

(B)

M

(A)

(C)

(B)

M

(A)

(C)

(B)

First stage :C is openA and B are closedB must be closed before A.

Second stage :A remains closedC remains openand B is opened

Third stage :A remains closedB remains openand C is closed

The current path is shown in red.It is obvious that the motor is always supplied even during the second stage, when B is open.

First stage : the motor is starting with reduced voltage.Second stage: the motor is running in series with part of the autotransformer winding.Third stage: the motor runs at full voltage.

RVAT


Incoming LV cables from below,cubicle by cubicle

1 2

3 4


Incoming LV cables from top,cubicle by cubicle


Civil engineeringLined up with MCset switchgear Incomer - Bus sectioning - IncomerMC set Motorpactinterface


Civil engineeringstand-alone motor control with RVSS SoftStartTM motor starter

3150 A Busbar

Incoming cable and metering

Front


Incoming cable and metering

Front

MotorpactMV motor startersSmart choice for MV- MCC application


Motorpact to IEC 62271-200 Fully enclosed in metal enclosure and having some current carrying capacity

Loss of Service Continuity

Class (LSC) Architecture based on safe compartment access

LSC 2A Safe access to compartment

With power flow in busbar and the other units

MV Cables must be earthed

Safe access to compartment

With power flow in busbar and the other units

MV Cable in separate compartment

Cable of unit under maintenance can remain energized

LSC 2B

Metal enclosed not of LSC2 class

LSC 1

Maintainability of defined parts with no need of cable disconnection (separate cable compartment)

Maintainability of one functional unit allowing normal service of the remaining units of the switchboard (busbar in a separate compartment)

Several levels of service continuity during maintenance

MOTORPACTMOTORPACT


Partition Class PM

All partitions and shutters of safe access compartment shall be metallic with some current carrying capacity

Metal enclosedcompliant during maintenanceApplicable mainly to withdrawable system

Partition ClassI or M

Classification based on electrical field presence in safe access compartment

Partition Class PI

Partitions or shutters may be partially or totally of insulating material

Electrical and mechanical safety according to IEC 60466 or 60137

Personnel comfort during maintenance

3.110 ShutterPart of metal-enclosed switchgear and controlgear that can be moved from a position where it permits contacts of a removable part, or moving contact of a disconnector to engage fixed contacts, to a position where it becomes a part of the enclosure or partition shielding the fixed contacts.

MotorpactMotorpact

Motorpact to IEC 62271-200 Fully enclosed in metal enclosure and having some current carrying capacity

Definition


Motorpact to IEC 62271-200Fully enclosed in metal enclosure and having current carrying capacity

IAC classified No projection of parts towards accessible sides

No ignition of indicators

Safety in case of internal fault during service conditionDemonstrated by type tests(completely defined by the standard)

Internal Arc ClassIAC

Classification based on consequences of internal arc on personnel safety

Personnel safety in case of internal arc

IAC not classified

No tests performed to assess behavior of enclosure under arc conditions

A : restricted to authorized personnel only.

B : unrestricted, including general public.

Enclosure Identification code: F - for Front side

L L - for Lateral sideR - for Rear side

Accessibility Types Motorpactcomplies with AFLR type


Redundant S3Alternate Configuration

One SoftStart used to start all motors Second SoftStart used as back up in case first fails. SoftStart has incoming and outgoing contactors for isolation

Motorpact Training Material 2011

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Transcript of Motorpact Training Material 2011