tech description cb rev01
TRANSCRIPT
Package #1 : TECHNICAL SCHEDULES
HV300977 rev01
Phu My- Ho Chi Minh City(Phu My - Nha Be - Phu Lam)
500 kV Transmission Line Project package#1substation works
Circuit-Breaker technical description
Written by Approved byName Zanata Larger
Date 28/05/04
Visa
Modification
Rev01
Package #1 : TECHNICAL SCHEDULES
HV300977 rev01
B.1 550 kV CIRCUIT BREAKER
- Name of Manufacturer ________ Nuova Magrini Galileo S.p.A
- Country of origin _______________________________Italy
- Quantity For Phu My S/S set(s) ____________ 15
For Nha Be S/S set(s) _____________ 8
For Phu Lam S/S set(s) _____________ 1
- Type of circuit breaker ___ SF6 PUFFER
- Manufacturer's designation __ 550 MHMe-2Y
- Manufacturing standards __ IEC 62271-100
- Number of phases _____________ 3
- Rated frequency Hz ____________ 50
- Rated voltage kV ___________ 550
- Rated continuous current to IEC 62271-100 A __________ 3150
- Rated insulation level
(a) Power frequency withstand voltage,(to earth/across open breaker poles)
dry, 1 minute kV _______ 620/800
(b) Lightning impulse withstand voltage
(to earth/across open breaker poles) kV __________ 1550
(c) Switching impulse withstand voltage
(to earth/across open breaker poles) kV 1175/900
(+450)
(d) Maximum permissible switching overvoltage
kV ___________ 858
- Rated short-circuit breaking current
(Three phase) :
(a) Symmetrical breaking current kA rms ____________ 50
(b) Asymmetrical breaking current kA rms ____________ 62
(c) Maximum dc component as a percentage of (a) % ____________ 50
(Single phase) :
(d) Symmetrical breaking current kA rms ____________ 50
(e) Asymmetrical breaking current kA rms ____________ 62
- Short circuit making current kA peak ___________ 125
- Short-time withstand currents in accordance with IEC 56
(a) One second kA rms ____________ 50
(b) Three seconds kA rms ____________ 50
- Resistor Values
(a) Opening-per phase Ohms _____________ /
Package #1 : TECHNICAL SCHEDULES
HV300977 rev01
(b) Closing-per phase Ohms _____________ /
- Resistor operating time
(a) Closing pre-insertion time ms _____________ /
- Rated operation duty cycle
0-0,3S-CO-3min-CO
- Number of successive auto-reclosing operations without derating (under
normal service condition) ______ O-CO-CO
- First-phase-to-clear factor ___________ 1,3
- Rated transient recovery voltage at rated short circuit breaking current
(a) Peak Uc kV peak ___________ 817
(b) Rate of rise of restriking voltage kV/µs _____________ 2
- Rated out-of-phase switching capability to IEC 56 kA __________ 12,5
- Rated capacitance current switching capabilities to IEC 56:
(a) Line charging current A ___________ 500
(b) Cable charging current A ___________ 500
(c) Capacitor current A ___________ 400
(d) Number of restrikes RESTRIKE FREE
- Operating time in accordance with IEC 56
(a) Opening time ms ____________ 20
(b) Closing time ms ____________ 65
(c) Maximum arcing time during current interruption ms ____________ 22
(d) Maximum difference in opening time between first and last phase to open
(3 phase) ms _____________ 3
(e) Minimum time for auto reclosing (dead time)
Single phase ms ___________ 300
Three phase ms ___________ 300
(f) Total break time (i.e. time from trip coil energisation to arc extinction in
last phase to clear ms ____________ 40
- Circuit breaker operating mechanism type: (Hydraulic, Spring or Pneumatic)
(a) Closing ELECTROPNEUMATIC
(b) Opening _ ELECTROPNEUMATIC
- Operating power consumption:
(a) Trip coils
current A ________ 1,8/0,9
voltage V _______ 110/220
(b) Closing coil
current A ________ 1,8/0,9
Package #1 : TECHNICAL SCHEDULES
HV300977 rev01
voltage V _______ 110/220
(c) Operating motor
power kW __________ 1500
voltage V ________ 400-3?
(d) Heater current A ___________ 3,1
- Total estimated mass of circuit breaker unit:
(a) One pole kg ____ ˜ 2910/2870
(b) Three pole kg ____ ˜ 8900/8770
- Mass of largest single component kg _____ 2500/2000
- Quantity of gas in circuit breaker
(a) Volume at normal pressure m3 ______ 1,78/1,59
(b) Mass kg _________ 81/72
- Gas leakage per annum % __________ <0,5
- Interrupting gas pressure: (absolute value)
(a) Maximum bar _____________ 7
(b) Normal bar _____________ 7
(c) Minimum bar ___________ 6,5
(d) Alarm “Loss of SF6” bar ___________ 6,6
(e) Trip and lockout bar ___________ 6,5
- Number of close-open operations possible without recharging
_____________ 2
- Number of operations before interrupter maintenance required
(a) at rated short circuit current ____________ 20
(b) at rated current __________ 2000
- Number of years equipment of identical design has been in service
____________ 20
- Number of breaks in series per pole _____________ 2
- Maximum loading to be used for foundation/floor design
(a) Vertical shock-load during operation
at opening kg __________ 8000
and at closing kg __________ 4000
(b) Steady loading kg _____ 8900/8770
- Voltage drop across main contacts of one pole mV ____ 7,5 at 100 A
- Temperature rise of main contacts on continuous operation at rated current,
and at ambient temperature 40°C K __________ 32°C
- Minimum clearance
(a) between phases mm __________ 4740
(b) between live parts and earth mm _________ >3840
Package #1 : TECHNICAL SCHEDULES
HV300977 rev01
- Insulator creepage distance mm ___ 17050/ 13750
* The type test certificate and/or report which has been carried out in
accordance with the requirement of IEC 56 shall be submitted with the this
Tender.
B.2 245 kV Circuit Breaker
- Name of Manufacturer ___________ Nuova Magrini Galileo S.p.A.
- Country of origin _____________________________ ITALY
- Quantity for Nha Be S/S sets _____________ 2
- Type of circuit breaker _ PUFFER TYPE
- Manufacturer's designation _____ SB6m 245
- Manufacturing standards __ IEC 62271-100
- Number of phases _____________ 3
- Rated frequency Hz ____________ 50
- Rated voltage kV ___________ 245
- Rated continuous current A __________ 3150
- Rated insulation level
(a) Power frequency withstand voltage, dry, 1 minutekV ___________ 460
(b) Lightning impulse withstand voltage kV __________ 1050
- Rated short-circuit breaking current:
(Three phase) :
(a) Symmetrical breaking current kA rms ____________ 40
(b) Asymmetrical breaking current kA rms ____________ 46
(c) Maximum dc component as a percentage of (a) % ____________ 40
- Short circuit making current kA peak ___________ 100
- Short-time withstand currents in accordance with IEC 56
(a) One second kA rms ____________ 40
(b) Three seconds kA rms ____________ 40
- Rated operation duty cycle _0-0,3S-CO-3min-CO
- Number of successive auto-reclosing operations without derating (under
normal service condition) ______ 0-CO-CO
- First-phase-to-clear factor ___________ 1,5
- Rated transient recovery voltage at rated short circuit breaking current
(a) Peak Uc kV peak ___________ 420
(b) Rate of rise of restriking voltage kV/µs _____________ 2
- Rated out-of-phase switching capability to IEC 56 kA ____________ 10
- Rated capacitance current switching capabilities to IEC 56:
Package #1 : TECHNICAL SCHEDULES
HV300977 rev01
(a) Line charging current A ___________ 125
(b) Cable charging current A ___________ 250
(c) Capacitor current A ___________ 400
(d) Number of restrikes RESTRIKE FREE
- Operating time in accordance with IEC 56
(a) Opening time ms ____________ 30
(b) Closing time ms ____________ 65
(c) Maximum arcing time during current interruption ms ____________ 22
(d) Maximum difference in opening time between first and last phase to open
(3 phase) ms _____________ 3
(e) Minimum time for auto reclosing (dead time)
Three Phase ms ___________ 300
(f) Total break time (i.e. time from trip coil energisation to arc extinction in
last phase to clear) ms ____________ 50
- Circuit breaker operating mechanism type: (Hydraulic/Spring etc.)
(a) Closing _________ spring
(b) Opening _________ spring
- Operating power consumption:
(a) Trip coils
current kW _________ 0,300
voltage V ___________ 110
(b) Closing coil
current kW _________ 0,300
voltage V ___________ 110
(c) Operating motor
power kW _______ 0,270X3
voltage V ________ 230-1?
(d) Heater current A ___________ 1,5
- Total estimated mass of circuit breaker unit:
(a) One pole kg _________ ˜ 1050
(b) Three pole kg _________ ˜ 3250
- Mass of largest single component kg ___________ 800
- Quantity of gas in circuit breaker
(a) Volume at normal pressure m3 __________ 0.55
(b) Mass kg ____________ 24
- Gas leakage per annum % __________ <0,5
- Interrupting gas pressure: (absolute value)
(a) Maximum bar _____________ 7
Package #1 : TECHNICAL SCHEDULES
HV300977 rev01
(b) Normal bar _____________ 7
(c) Minimum bar ___________ 6,4
(d) Alarm “Loss of SF6” bar ___________ 6,7
(e) Trip and lockout bar ___________ 6,4
- Number of close-open operations possible without recharging ___________ 1
______________
- Number of operations before interrupter maintenance required
(a) at rated short circuit current ____________ 20
(b) at rated current __________ 2000
- Number of years equipment of identical design has been in service
_____________ 1
- Number of breaks in series per pole _____________ 1
- Maximum loading to be used for foundation/floor design
(a) Vertical shock-load during operation
at open _______3000 kg and at close ________ 2000 kg
(b) Steady loading kg __________ 3250
- Voltage drop across main contacts of one pole mV ______4 at 100 A
- Temperature rise of main contacts on continuous operation at rated current,
and at ambient temperature 40°C K __________ 49°C
- Minimum clearance
(a) between phases mm __________ 2810
(b) between live parts and earth mm __________ 1734
- Insulator creepage distance mm _________ >6125
* The type test certificate and/or report which has been carried out in
accordance with the requirement of IEC 56 shall be submitted with the this
Tender.