FVNR: direct on line asynchronous motor starter

Motorpact
Application leaflet
2004
FVNR: direct on line
asynchronous motor starter
IEC Motorpact basic solution
PE50238
The FVNR motor starter covers 80 %
of motor applications.
With the basic solution described below,
you can run motors up to 1900 kW/6.6 kV.
Advantages of the Schneider solution
Only one cubicle from 3.3 kV to 7.2 kV
Easy adaptation
Only the fuses change if the motor power changes
Possibility to have differential protection with the Sepam M87
Max rated voltage
Impulse withstand voltage
(1.2/50 µs, peak)
Power frequency withstand voltage
Busbar rated short time withstand current
Contactor rated operational current
7.2 kV
60 kV
Busbar rating
Protection chain
1250 A (1)
LPCT + Sepam M20
20 kV
25 kA 3 s (1)
200/400 A - 50/60 Hz
Usual uses
Motor range (2)
Running current up
to 300 A
Motor starting up to 1900 kW/6.6 kV with single fuses starter
for machine requiring high starting torque.
(1) Other values on request see catalogue.
(2) See also the ECT165 “Cahier technique” control-monitoring
and protection of MV motor.
Basic solution description
Installation
2 possible installations
Enclosure
Design
Color
Degree of protection
Busbars
Our choice
Advantages
Lined up with a MCset switchgear (adapted to the CB cubicle
design)
Standalone
The least expensive solution
Single tier: 3 main compartments including the necessary
devices for the control and the protection of the motor
RAL9002
IP3X (1)
Narrow footprint, front or rear access
Easy to operate
Similar to the CB switchgear
Similar to the CB switchgear
Bare busbar 1250 A (1) 25 kA 3 s
Same rating as the main switchgear
Safety devices
Disconnector 400 A
Can be close to the motor
Isolates the MV compartment from the main busbar;
2 positions: closed, earthed
Cable earthing switch with VPIS Can be interlocked with outside equipment
Motor control and protection
Fused vacuum contactor
200 A
Electricaly held contactor 110 V AC
Protection chain is based on the Sepam M20
Low Power Current Transducer (LPCT)
Cable entry
Both top and bottom cable entry
4 single core 125 mm² or 2 x 3 cores 250 mm²
Safe without maintenance
Internal arc withstand
Fused vacuum contactor
Protection chain
Is adapted to the specification of the CB board
For bigger motors
Usual alternatives
Busbar ratings
25 kA1s (1) for the bus bar compartment
400 A instead of 200 A
A complete range of motor protection
Sepam 41 instead of M20
Sepam series 80
630; 1250; 2000; 2500; 3150 A
Important option for the operator safety
The same equipment controls a large range of motors. Only the
fuses have to be changed.
Only one LPCT for the full range of motors.
Minimum of spare parts
Only one cubicle for all configurations
Voltage measuring and voltage protection
Allows differential protection
Recommended options
Communication
Communication modules
Transparent Ready option
Thermal diagnosis system
Communication modules to be used with a remote monitoring
Easely added to the Sepam
system. Transparent Ready allows, by use of an EGX Gateway, Reduces maintenance costs
single and cost effective web monitoring
Permanent temperature supervisor DT1 for checking the
temperature of critical points
Heating resistor
(1) Other possibilities available see catalogue.
Predictive maintenance
Reduce manhour for maintenance
Increase safety / reliability
FVNR: full voltage asynchronous motor starter
This arrangement with protection
and control module is for use as direct
on line non reversing motor starter.
It includes the usual motor protection.
It is ideally suited for integration into
a supervisory system using Modbus serial
interface.
Required data to define the solution
Motor power: kW
Service voltage: kV
Frequency: Hz
Ratio starting current/service current
Starting time: s
Number of consecutive starts
Number of starts per hour
Basic cubicle
Rated voltage
Q1
Q21
H21
7.2 kV
25 kA 3 s
1250 A
200 A
IP3X
Other
400 A
IP4X
Thermal diagnosis system
Heater resistor
Back light (disconnector contacts & load compartment)
Key interlockings Ronis
Profalux
Line disconnector
Cable earthing switch
2O + 1C
1O or 1 C
Options
TD1
EH11
Main fused contactor
K1
DE51004
Rated short time withstand current
Busbar
Rated current
Rated operational current
Degree of protection (housing)
Maintenance free disconnector
Cable earthing switch (Making current 5 kA)
Voltage presence indicator system (VPIS)
FU1
Removable vacuum contactor
Electrically held
basic equipment
Mechanically latched
Open release
125 V AC
48 V DC
125 V DC
Mechanical operation counter
MV fuses
in accordance with motor and sensors rating
F3
Sepam digital relay (see Sepam catalogue)
T1
Transparent Ready option
Local control
2 push buttons, 2 indication lights
L/R switch
Sepam 100 MI
Phase current sensors
Low Power Current Transducer complying with IEC 60044-1 (LPCT)
Zero sequence current sensors
Internal ZSCT
CSH 120
CSH 200
250 V AC
250 V DC
Protection, metering and control
T4
M20
Other
Sepam options
Additional logic I/O’s module
Analog output module
Temperature sensor acquisition module
Modbus communication interface
Auxiliary equipment
MES114
MSA141
MET148
ACE949
Q3-4-5 MCB auxiliary voltage miniature circuit breaker
K20-21- Auxiliary relay
22
Customer’s interfaces
Cable connection from bottom or top
LV terminals
2 x 1 core 120 mm2
1 x 3 core 240 mm2
FVNR: full voltage asynchronous motor starter
Operation
DE51002
DE51001
Installation
Front MV door opening conditions
Interlocking prevent access to the contactor/cable compartment unless:
b the contactor is open and the disconnector is open
b the earthing switch is closed (only door open for cable testing).
Disconnector closing conditions
Interlocking prevent disconnector closure (normal operation) if:
b the contactor is closed
b the access door is open
b the contactor is not in the fully connected position
b the earthing switch is closed.
Test position
Interlocking allow for test position which meet the following criteria:
b the front door has been opened for access
b the disconnector is open and cannot be closed
b the contactor is in the fully connected position and can be operated.
Padlocks interlocking is the basic design of the interlocking
b on the disconnector: padlock possibilities in open and closed position
b on the earthing switch (if any): padlock possibilities in open and closed position.
MV Compartment
1 Line disconnector
2 Busbars
3 MV fuses
4 Contactor
5 Cable earthing switch
6 LPCT current sensors
LV compartment
7 LV protection, measurement and control devices
DE51000
Civil engineering with utility space
Dimensions (mm)
Width: 375
Depth: 950
Height: 2300
Weight: 475 kg
Cables trays
The cubicle may be installed either on a cable tray or...
Fixation on the floor
The cubicle is bolted on the floor inline with the main
incomer cubicle.
Extra optional key locks may be sypplied:
b on the disconnector:
v 2 keys locks: open or closed/open
b on the earthing switch
v 1 key lock: closed position.
Auxiliary contacts are available for the customer’s use
b on the disconnector: 2 form “C” contacts
b on the contactor: 4 form “C” contacts
b on the earthing switch (if any): 2 form “C” contacts.
The motor starter shall be built in accordance with IEC
standards:
b IEC 60694: common specifications for high-voltage switchgear and
controlgear standards
b IEC 62271-200: AC metal-enclosed switchgear and controlgear for
rated voltages above 1 kV and up to and including 52 kV
b IEC 60470: high voltage alternating current contactors and
contactor based motorstarters
b IEC 60282-1: high voltage fuses: limiting fuses
b IEC 62271-102: alternating current disconnectors and earthing
switches
b IEC 60255: electrical relays
b IEC 60044-2: Instrument transformers: voltage transformers
b IEC 60044-8: Low Power Current Transducer (LPCT)
b IEC 60529: degree of protection.
The motor starter shall be connected to the main switchgear and
will have similar electrical characteristics:
b maximum rated voltage: 7.2 kV
b impulse withstand voltage (1.2/50, peak value): 60 kV
b power frequency withstand voltage (1 mn): 20 kV
b maximum rated short time withstand current (busbar): 40 kA 3s
b rated busbar current: 630, 1250, 2500, 3150 A.
The following data is required for the motor:
b motor power: kW
b frequency: Hz
b direct starting current/service current ratio
b number of consecutive starts
b number of starts per hour.
The enclosure shall be designed to improve safety, reliability,
maintainability, and reduce civil engineering cost.
As a minimum it shall have the following features:
Fully safe compartment design
b visible earthed position in front of the switchgear indicating safe
isolation of the starter from the busbar
b cable earthing switch with making capacity 14 kA peak
b all operations carried out with closed doors
b simple and robust internal interlocks prevent improper operation
b fully tested for internal arc resistance in the busbar compartments
(50 kA - 0,25 s)
b clear and animated display diagrams.
Reliable architecture
b enclosure designed to protect against dust and vermin with
compartments separated by metal sheets or isolating components
b air break line disconnector 400 A with 2 positions (closed/earthed)
safely isolating the load compartment from the busbar
b busbar compartment with horizontal main bus allowing easy
extension is preferred. Maintenance access of the busbar shall be
able from the cubicle.
b load compartment shall comprise:
v a removable vacuum contactor, electrically held 110 V AC (50 Hz)
v MV fuses
v a Low Power Current Transducer
v a cable earthing switch
v a Voltage Presence Indication System
v cable connection facilities
b low voltage compartment with all necessary devices for protection,
control and communication
b front operating panel with all necessary devices to operate the
disconnector and the cable earthing switch
b main connections shall be checked by a continuous thermal
monitoring system.
Schneider Electric Industries SAS
Reduced maintenance time
b modular cubicles, single-tier, indoor construction, easily adaptable
to the motor power without component changes
b the switchboard shall be monitored by a general process
supervisor, even situated in a remote building
b line disconnector capable of 5000 operations
b maintenance free active parts (breaking and earthing)
b maintenance free electrically held vacuum contactor
b protection and measuring setting shall be easily updated
b Low Power Current Transducer shall be used to reduce the number
of spare parts
b all contactors shall be interchangeable and easely removable
b dry cable connections from the bottom; terminations accessed from
the front.
Designed to save space and to reduce civil work costs
b the width of the main switchboard shall not exceed 375 mm
b the civil engineering work shall be in line with the one of the main
switchgear.
Protection and monitoring chain
The contactor shall be controlled locally for test and remotely (Sepam
100MI type).
The motor protection shall include as a minimum:
b protection:
v phase overcurrent (51) coordinated with the fuses
v thermal overload protection (49RMS)
v earth fault protection (51N)
v locked rotor, excessive starting time (48, 51LR;14)
v negative sequence /unbalance (46);
v number of starts per hour (66)
v phase undercurrent (37)
b metering phase current and residual current:
v average current, peak demand current
b network and machine diagnosis:
v tripping current
v unbalance ratio, negative sequence current
v disturbance recording
v thermal capacity used
v remaining operating time before overload tripping
v waiting time after overload tripping
v running hours counter/operating time
v starting current and time
v start inhibit time delay, number of starts before inhibition
b switchgear diagnosis:
v cumulative breaking current
b control and monitoring:
v latching / acknowledgement (86).
Sensors, auxiliary voltage and communication modules
b current sensors: three core Low Power Current Transducer, suitable
for the complete range of ratings
b voltage sensors: the protection and metering voltage shall be
provided from busbar VT’s
b auxiliary voltage for the contactor control shall be provided from an
external supply
b communication modules can be added as required, even after
delivery, only by adding modular components.
Postal address:
Electrical Distribution Communication
F - 38050 Grenoble cedex 9
France
Tel : +33 (0)4 76 57 60 60
As standards, specifications and designs change from time to time, please ask for confirmation
of the information given in this publication.
http://www.schneider-electric.com
Design: Schneider Electric - Ameg
Publication: Schneider Electric
Printed:
ART.70973
This document has been printed
on ecological paper.
11-2007
AMTED303043EN © 2007 Schneider Electric - All right reserved
FVNR Motor starter specification