Product Specifications
| Prod Model: |
SFZ 120000/230/35KV |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Phase: |
Three |
| Coil: |
Core-type Transformer |
| Cooling Method: |
Oil-immersed Type Transformer |
| Winding Type: |
Multi-winding Transformer |
| Application: |
Audio |
Product Description
Double Winding Non-excitation Voltage Regulation Transformer: Maximum 420000kVA
Three Winding Non-excitation Voltage Regulation Transformer: Maximum 240000kVA
Double Winding On-load Voltage Regulation Transformer: Maximum 240000kVA
Three Winding On-load Voltage Regulation Transformer: Maximum 240000kVA
Autotransformer: Maximum 360000kVA
Equipment standards
Name: Three-phase dual winding with stabilization winding on-load voltage regulation oil immersion air-cold power transformer
Type: SFZ-120000/230
Rated voltage: 230/34 /25kv
Rated capacity: 100000/120000kVA
Rated voltage ratio: 230± 8× 1.25%/34kV
Rated current: 301/2038A
Phase number: Three
Rated frequency: 50 Hz ± 3%
Connection set: Ynyn0(d11)
Voltage regulating method: Neutral point on-load Regulating
Short circuit impedance: 9.5%(100MVA)
Cooling mode: ONAN/ONAF
Winding insulation level:
Lightning impulse withstand voltage (kV\peak value) 1min Main frequency withstand voltage
(kV\RMS)
Full wave Chopped wave
High voltage side: 1050 1175 460
Neutral point of high voltage: (1050) ( 460 )
Low voltage side: 170 185 70
Neutral point of low voltage: 170 70
Insulation Level: A
Field strength between transformer winding turns is no more than 2kV/mm
Transformer loss (under 75)\no-load current and efficiency
No-load Loss: 92 kW According to IEC standard
Load Loss: 356 kW According to IEC standard
No-load current: 0.3 % According to IEC standard
Radio interference and corona
Under the Maximum phase voltage, corona is not visible from outgoing terminal in the night of clear day at outdoor. Radio interference voltage is no more than 2500UV.
Ratedpower
(kVA) | Valtage | Connction | 9 loss (kW) | 10 loss (kW) | 11 loss (kW) | No-load Loss(%) | Impedence Voltage(%) |
| H.V(kV) | L.V(kV) | No-Load Loss | Load Loss | No-Load Loss | Load Loss | No-Load Loss | Load Loss |
| 31500 | 230
242
±2×2.5% | 6.3
6.6
10.5
11 | YNd11 | 35 | 135 | 31.5 | 128.3 | 28 | 128.3 | 0.7 | 12-14 |
| 40000 | 41 | 157 | 36.9 | 149.2 | 32.8 | 149.2 | 0.7 |
| 50000 | 49 | 189 | 44.1 | 179.6 | 39.2 | 179.6 | 0.65 |
| 63000 | 58 | 220 | 52.2 | 209 | 46.4 | 209 | 0.65 |
| 75000 | 10.5
11
13.8 | 67 | 250 | 60.3 | 237.5 | 53.6 | 237.5 | 0.6 |
| 90000 | 77 | 288 | 69.3 | 273.6 | 61.6 | 273.6 | 0.55 |
| 120000 | 94 | 345 | 84.6 | 327.8 | 75.2 | 327.8 | 0.55 |
| 150000 | 112 | 405 | 100.8 | 384.8 | 89.6 | 384.8 | 0.5 |
| 160000 | 11
13.8
15.75
18
20 | 117 | 425 | 105.3 | 403.8 | 93.6 | 403.8 | 0.49 |
| 180000 | 128 | 459 | 115.2 | 436.1 | 102.4 | 436.1 | 0.46 |
| 240000 | 160 | 567 | 144 | 538.7 | 128 | 538.7 | 0.42 |
| 300000 | 189 | 675 | 170.1 | 641.3 | 151.2 | 641.3 | 0.38 |
| 360000 | 217 | 774 | 195.3 | 735.3 | 173.6 | 735.3 | 0.38 |
| 370000 | 15.75
18
20 | 221 | 790 | 198.9 | 750.5 | 176.8 | 750.5 | 0.38 |
| 400000 | 234 | 837 | 210.6 | 795.2 | 187.2 | 795.2 | 0.35 |
| 420000 | 242 | 868 | 217.8 | 824.6 | 193.6 | 824.6 | 0.35 |
Suzhou Silverstone Electric Specialises in Power Transmission, Distribution, Electrical Automation Solutions, Power Quality Solutions, Hydro Power, Solar Power, Power Generation and Substation EPC Consultant.
We manufactures and trades
Power Transformer
--Dry type Transformer (up to 35kV)
--Oil Immersed Transformer (up to 230kV)
GIS (Gas Isolated Switchgear)
--Up to 145kV Compact Gas Insulated Switchgear (GIS)
--Up to 230kV Gas Insulated Switchgear (GIS)
MV Switchgear
--Metal clad AC Enclosed Switchgear
--Packaged Type AC Metal Enclosed Switchgear
--Gas Insulated Switchgear
LV Switchgear
--LV Withdrawable Switchgear
--LV Fixed Switchgear
MV Circuit Breaker
--Vacuum Circuit Breaker
--SF6 Circuit Breaker
--MV Earthing Switch
--Load Break Switch
Reactor
--Dry-type Air Core Reactor Series
--Dry-type Core Series Shunt Reactor
--HV Oil-immersed Shunt Reactor
HV&LV Busbar Trunking System
--Busbar Trunking System (Busway)
--Common Enclosure Busbar
HV Circuit Breaker & Disconnector
--HV Circuit Breaker
--SF6 Circuit Breaker
--HV Disconnector
--Outdoor AC discontector
--HV Earthing Switch
--Outdoor AC Earthing Switch
Capacitor
--All film high voltage shunt capacitor
--High-voltage shunt capacitor banks
--Atlernating filter capacitor complete equipments
Power Protection & Automation
Reactive Compensation
High Voltage Frequency Reactor
Medium voltage variable frequency drives
Medium voltage soft starter
STATCOM (Static synchronous compensator)
Static var compensator with Magnetically controlled reactor
TSC (Thyristor switched capacitor banks)
Active power filter
