7/28/2019 Technical Schedule 33kV CB Outdoor SS (2)
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TanescoElectricityVPackageIIISubstations
SpecificMaterialSpecification SWECO International AB
3 33 kV Equipment3.2 33 kV Outdoor Switchgear
Item Description Required Tendered Unit
Circuit Breaker
3.2.1 Type Outdoor
3.2.2 Manufacturer
3.2.3 Country of origin
3.2.4 Manufacturer's type designation
3.2.5 Standard IEC
3.2.6 Type test report Yes
3.2.7 Rated voltage (Uo/U) 19/33 kV
3.2.8 Maximum system voltage 36 kV
3.2.9 Impulse voltage level (peak) 170 kV
3.2.10 Power frequency withstand voltage (1 min) to earth 70
kV
3.2.11 Rated frequency 50 Hz
3.2.12 Rated current 630 A
3.2.13 Rated short circuit breaking current 25 kA
3.2.14 Rated short circuit making current kA
3.2.15 Degree of protection LV compartment IP41
3.2.16 Width mm
3.2.17 Weight kg
3.2.18 Rated operation sequence O-0.3s-C-O-3min- C-O
3.2.19 Closing time ms
3.2.20 Dead time ms
3.2.121 Break time ms
3.2.22 Make time ms
3.2.23 Arcing time ms
3.2.24 Life span for contacts (number of operations)
3.2.25 - at rated current Nos3.2.26 - at rated breaking current
Nos3.2.27 Arc quenching medium SF6 gas
3.2.28 Auxiliary contacts
3.2.29 - number of NO Nos
3.2.30 - number of NC Nos
3.2.31 Operation mechanism for opening / closing
spring/spring
3.2.32 Spring charging motor 110 V DC
3.2.33 Number of tripping coils 1
25/06/2012/TechnicalSchedule
33kV
CB
outdoor
SS
(2) 1
7/28/2019 Technical Schedule 33kV CB Outdoor SS (2)
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TanescoElectricityVPackageIIISubstations
SpecificMaterialSpecification SWECO International AB3.2.34 Current
Transformer
3.2.35 Type (Manufacturers identification)
3.2.36 Manufacturer
3.2.37 Country of origin
3.2.38 Standard IEC
3.2.39 Rated primary current transformer feeder 300 A
3.2.40 Rated secondary current 1 A
3.2.41 Protection cores3.2.42 - Accuracy class 5P20
3.2.43 - Output 10 VA
3.2.44 Measuring core
3.2.45 - Accuracy class 0.5
3.2.46 - Output 10 VA
3.2.47 Rated short time withstand current 25 kA
3.2.48 Rated peak short circuit current 50 kA
3.2.49 Impulse withstand voltage (peak) kA
3.2.50 Permanent overload factor 1.2
3.2.51 Surge Arresters
3.2.52 Maximum system voltage 36 kV
3.2.53 Nominal operating voltage 33 kV3.2.54 Frequency 50 Hz
3.2.55 Type of duty Heavy
3.2.56 MO type
3.2.57 Rated voltage Ur kV
3.2.58 Maximal residual voltage 8/20s (10kA) kV
3.2.59 Maximum cont. operation voltage kV
3.2.60 TOV capability (1 s) kV
3.2.61 Pressure relief capability kA
3.2.62 Line discharge class class 2
3.2.63 Nominal discharge current kA (crest)
3.2.64 Impulse withstand current (peak value) kA
3.2.65 Long-wave surge current (2000 s) A
3.2.66 Leakage current 1 mA
3.2.67 Surge counters per phase Yes
25/06/2012/TechnicalSchedule
33kV
CB
outdoor
SS
(2) 2
