motorpact training material 2011
DESCRIPTION
TrainningTRANSCRIPT
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MotorpactMV motor starters7.2kV
Web-enabled Power & Control
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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
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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
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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)
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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
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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
Low cost of ownership
375Depth : 946 mmHeight : 2300 mm
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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
Low cost of ownership
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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
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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
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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
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Motorpact 2007-TL 11
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.
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Motorpact 2007-TL 12
Soft starter setting: usual setting
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Motorpact 2007-TL 13
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
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Motorpact 2007-TL 14
OTHER TYPE OF MOTORPACT PANEL
750
2300
2S2W: 2 Speed 2 Windingfull voltage non reversingasynchronous motor starter
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Motorpact 2007-TL 15
OTHER TYPE OF MOTORPACT PANEL
750
2S1W: 2 Speed 1 Windingfull voltage non reversingasynchronous motor starter (Star delta starter)
375 750
2300
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Motorpact 2007-TL 16
S3: Sequential Smart Start reduced voltage non reversing asynchronous motor starter
375 750 750 750
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Motorpact 2007-TL 17
Dimension and weight
FVNR RVAT RVSS
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Motorpact 2007-TL 18
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.
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Motorpact 2007-TL 19
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
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Motorpact 2007-TL 20
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
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Motorpact 2007-TL 21
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
Low cost of ownership
Viewing window
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Motorpact 2007-TL 22
Operating panel
Disconnector Closed Disconnector Open
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Motorpact 2007-TL 23
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
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Motorpact 2007-TL 24
Voltage Presence Indication System (VPIS) (option) Line side available for
Incoming cubicle(directincoming)
Load side available at load terminal pads of motor starter
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Motorpact 2007-TL 25
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)
Low cost of ownership
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Motorpact 2007-TL 26
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
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Motorpact 2007-TL 27
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
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Motorpact 2007-TL 28
Busbar
Spacer (intermediate panel)
Main Busbar
2000-2500A1250A 3000-3150A
Intermediate Insulator support
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Motorpact 2007-TL 29
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
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Motorpact 2007-TL 30
Main busbar jointing
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Motorpact 2007-TL 31
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
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Motorpact 2007-TL 32
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
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Motorpact 2007-TL 33
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)
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Motorpact 2007-TL 34
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
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Motorpact 2007-TL 35
Contactor aux Contact Additional Aux contact
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Motorpact 2007-TL 36
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
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Motorpact 2007-TL 37
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
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Motorpact 2007-TL 38
Load compartment - contactor
Standard Operation for Magnetically held contactor
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Motorpact 2007-TL 39
Load compartment - contactor
Standard Operation for Mechanically latch contactor w/o CTD
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Motorpact 2007-TL 40
Load compartment - contactor
Standard Operation for Mechanically latch contactor with CTD
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Motorpact 2007-TL 41
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
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Motorpact 2007-TL 42
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
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Motorpact 2007-TL 43
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
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Motorpact 2007-TL 44
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
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Motorpact 2007-TL 45
Load compartment - contactor
Connected position Withdrawn positionRail extended
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Motorpact 2007-TL 46
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
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Motorpact 2007-TL 47
Typical cable termination
Top and Bottom cable connection Line connection and load connection
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Motorpact 2007-TL 48
Typical cable termination for single section and single controller
Top and Bottom cable connection
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Motorpact 2007-TL 49
Load compartment - cable earthing switch(option)
Load cable termination
Cable earthingswitch
Formex cover
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Motorpact 2007-TL 50
Top cable clamp assy
Top cable assy3 or 6 single core cable
Top cable assy1 or 2 cores cable
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Motorpact 2007-TL 51
Lower cable clamp assy
Top cable assy3 or 6 single core cable
Lower cable assy2 cores cable
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Motorpact 2007-TL 52
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
Low cost of ownership
Hold at the moment this offer
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Motorpact 2007-TL 53
Temperature monitor module (DT1)
Provides continuous monitoring of joints in the equipment for predictive maintenance
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Motorpact 2007-TL 54
POWER FACTOR CORRECTION CAPASITOR
3 phase capacitors without internal fuse Possible for FVNR with 750mm width Be careful for RVSS and S3
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Motorpact 2007-TL 55
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
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Motorpact 2007-TL 56
Enclosure IPX1 (option)
IPX1 : Tunnel + roof No top entry cable (standard) non std for top entry
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Motorpact 2007-TL 57
Enclosure main earth bar
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Motorpact 2007-TL 58
Enclosure - internal arc withstand (option)
8-point latching door
Heavy-duty vault style door handle
Interlocking of hinge side
DoorFrame
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Motorpact 2007-TL 59
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
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Motorpact 2007-TL 60
Joining the shipping splits
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Motorpact 2007-TL 61
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
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Motorpact 2007-TL 62
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 (
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Motorpact 2007-TL 63
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
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Motorpact 2007-TL 64
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
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Motorpact 2007-TL 65
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
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Motorpact 2007-TL 66
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
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Motorpact 2007-TL 67
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
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Motorpact 2007-TL 68
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
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Motorpact 2007-TL 69
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
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Motorpact 2007-TL 70
MV motor starter FVNR with options
Second set of CTs
Control PowerTransformer
CPT fuses
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Motorpact 2007-TL 71
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
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Motorpact 2007-TL 72
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
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Motorpact 2007-TL 73
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
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Motorpact 2007-TL 74
Pumps Blowers Compressors Chillers Fans Chippers
Ball Mills Rod Mills Conveyors Natural Gas Compressors Centrifugal Blowers Other Applications
Motorpact Soft Start Controller Applications
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Motorpact 2007-TL 75
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
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Motorpact 2007-TL 76
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
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Motorpact 2007-TL 77
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
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Motorpact 2007-TL 78
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
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Motorpact 2007-TL 79
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
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Motorpact 2007-TL 80
Sensing Systems
= 28V
= MV
MTRMTR
Magnetic Isolation
OpticalIsolation
= Fiber Optic
= 120V
Gate Drive
Electrical Isolation Diagram
LVControls
Motorpact SoftStart
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Motorpact 2007-TL 81
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)
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Motorpact 2007-TL 82
Reduced voltage auto-transformer motor starter
MAIN CONTACTOR
STARTCONTACTOR
RUNCONTACTOR
AUTO TRANSFORMER
1 2
3
4
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Motorpact 2007-TL 83
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
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Motorpact 2007-TL 84
Incoming LV cables from below,cubicle by cubicle
1 2
3 4
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Motorpact 2007-TL 85
Incoming LV cables from top,cubicle by cubicle
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Motorpact 2007-TL 86
Civil engineeringLined up with MCset switchgear Incomer - Bus sectioning - IncomerMC set Motorpactinterface
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Motorpact 2007-TL 87
Civil engineeringstand-alone motor control with RVSS SoftStartTM motor starter
3150 A Busbar
Incoming cable and metering
Front
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Motorpact 2007-TL 88
Incoming cable and metering
Front
MotorpactMV motor startersSmart choice for MV- MCC application
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Motorpact 2007-TL 89
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
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Motorpact 2007-TL 90
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
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Motorpact 2007-TL 91
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
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Motorpact 2007-TL 92
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Motorpact 2007-TL 93
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Motorpact 2007-TL 94
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Motorpact 2007-TL 95
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Motorpact 2007-TL 96
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Motorpact 2007-TL 97
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Motorpact 2007-TL 98
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Motorpact 2007-TL 99
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Motorpact 2007-TL 100
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Motorpact 2007-TL 101
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Motorpact 2007-TL 102
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Motorpact 2007-TL 103
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Motorpact 2007-TL 104
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Motorpact 2007-TL 105
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Motorpact 2007-TL 106
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Motorpact 2007-TL 107
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Motorpact 2007-TL 108
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Motorpact 2007-TL 109
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Motorpact 2007-TL 110
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Motorpact 2007-TL 111
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Motorpact 2007-TL 112
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Motorpact 2007-TL 113
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Motorpact 2007-TL 114
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