220KV Power Transformer

220KV series oil immersed power transformer produced with global advanced technology and equipment, continuously updating the manufacturing experience and processing. We developed high-grade power transformer that sufficiently satisfy the operation conditions of domestic and foreign power grid.

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220 KV Three Phase Three Windings On-load Regulating Auto Transformer Datasheet

TypeRated Voltage(KV)Connection SymbolNO-load Loss(kW)Load Loss(kW)NO-load Current(%)Short-circuit Impedance(%)
OS(F)(P)SZ11 -90000/220High Voltage H.V.
220±8x1.25%
242±8x1.25%
Medium Voltage M.V.
115-121
Low Voltage L.V.
6.3-38.5
YNa0d11372350.24High Voltage-Medium Voltage H.V.-M.V. 8~10
High Voltage-Low Voltage H.V.-L.V. 28~34
Medium Voltage-Low Voltage M.V.-L.V. 18~24
OS(F)(P)SZ11-120000/220412930.22
OS(F)(P)SZ11-150000/220493470.2
OS(F)(P)SZ11-180000/220543980.18
OS(F)(P)SZ11-240000/220675130.15


220 KV Three Phase Three Windings Off-Circuit-Tap-Changing Auto Transformer

TypeRated Voltage(KV)Connection Symbolstep-upstep-downNO-load Current (%)Short-circuit Impedance(%)
NO-load Loss(kW)Load Loss(kW)NO-load Loss(kW)Load Loss(kW)step-upstep-down
OS(F)(P)S11-90000/220High Voltage H.V.
220±2x2.5%
242±2x2.5%
Medium Voltage M.V.
115-121
Low Voltage L.V.
6.3-38.5
YNa0d1140262362220.24High Voltage-Medium Voltage H.V.-M.V. 12~14
High Voltage-Low Voltage H.V.-L.V. 8~12
Medium Voltage-Low Voltage M.V.-L.V. 14~18
High Voltage-Medium Voltage H.V.-M.V. 8~10
High Voltage-Low Voltage H.V.-L.V. 28~34
Medium Voltage-Low Voltage M.V.-L.V. 18~24
OS(F)(P)S11-120000/22050323442740.22
OS(F)(P)S11-150000/22058385523250.2
OS(F)(P)S11-180000/22067440603680.18
OS(F)(P)S11-240000/22079565714790.15


220 KV Three Phase Double Windings On-load Regulating Power Transformer

Rated Capacity (kVA)Rated Voltage(KV)Connection symbolNO-load Loss(kW)Load Loss(kW)NO-load Current (%)Short-circuit Impedance(%)
31500High Voltage M.V.YNd1126.7128.30.3912~14
40000220±2x2.5%30.2149.20.36
50000242±2x2.5%35179.60.34
63000
40.12090.32
90000Low Voltage L.V.51.1273.60.3
1200006.3-2062.8327.80.27
150000
75384.80.22
180000
86436.10.19
240000
107538.70.17


220 KV Three Phase Double Windings Off-Circuit-Tap-Changing Power Transformer

TypeRated Capacity (kVA)Rated Voltage(KV)Connection symbolNO-load Loss(kW)Load Loss(kW)NO-load Current (%)Short-circuit Impedance(%)
SF(P)11-31500/22031500High Voltage M.V.YNd1126.7128.30.3912~14
SF(P)11-40000/22040000220±2x2.5%30.2149.20.36
SF(P) 11-50000/22050000242±2x2.5%35179.60.34
SF(P)11-63000/22063000
40.12090.32
SF(P)11-90000/22090000Low Voltage L.V.51.1273.60.3
SF(P)11-120000/2201200006.3-2062.8327.80.27
SF(P)11-150000/220150000
75384.80.22
SF(P)11-180000/220180000
86436.10.19
SF(P)11-240000/220240000
107538.70.17


220 KV Three Phase Three Windings On-load Regulating Power Transformer

Rated Capacity (kVA)Rated Voltage (kV)Connection SymbolNO-load Loss(kW)Load Loss(kW)NO-load Current (%)Short-circuit Impedance(%)
31500High Voltage M.V
220 ±8x1.25%
230 ±8x1.25%
Medium Voltage M.V.
69 ~ 121
Low Voltage L.V.
6.3 ~ 38.5
YNyn0d1135.2153.90.34High Voltage-Medium Voltage H.V.-M.V. 12~14
High Voltage-Low Voltage H.V.-L.V. 22~24
Medium Voltage-Low Voltage M.V.-L.V. 7~9
4000040.4179.60.32
5000045.1213.80.3
63000512480.27
9000062.6333.50.22
12000074.5410.40.19
15000084.2487.40.17
18000094.8598.50.15
240000
114.37410.13


220 KV Three Phase Three Windings Off-Circuit-Tap-Changing Power Transformer

TypeRated Capacity (kVA)Rated Voltage (kV)Connection SymbolNO-load Loss(kW)Load Loss(kW)NO-load Current (%)Short-circuit Impedance(%)
step-upstep-down
S(F)(P)S11-31500/22031500High Voltage M.V
220 ±2x2.5%
242 ±2x2.5%
Medium Voltage M.V.
69 ~ 121
Low Voltage L.V.
6.3 ~ 38.5
YNyn0d1131.7153.90.36High Voltage-Medium Voltage H.V.-M.V. 22~24
High Voltage-Low Voltage H.V.-L.V. 12~14
Medium Voltage-Low Voltage M.V.-L.V. 7~9
High Voltage-Medium Voltage H.V.-M.V. 12~14
High Voltage-Low Voltage H.V.-L.V. 22~24
Medium Voltage-Low Voltage M.V.-L.V. 7~9
S(F)(P)S11-40000/2204000038.4179.60.34
S(F)(P)S11-50000/2205000040.3213.80.32
S(F)(P)S11-63000/2206300044.92480.3
S(F)(P)S11-90000/2209000055.7333.50.27
S(F)(P)S11-120000/22012000069.5410.40.22
S(F)(P)S11-150000/22015000081487.40.19
S(F)(P)S11-180000/22018000089.7555.80.17
S(F)(P)S11-240000/220240000112.66840.15


Why Do Transformers Fail?


An electrical transformer can blow for a variety of reasons and can cause an explosion or fire. Causes of transformer explosions could include:

· Lightning strikes

· Overheating

· Wear and corrosion

· Damage to the electrical system anywhere along the line

· Failed safety devices and power surges

· Foreign objects or animals getting into the transformer

· Moisture

When a transformer fails, it will usually result in a loud boom, a power outage, and a fireball that creates a large plume of smoke.

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