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arabian 1000kva 10kv excitation transformer impedance

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  • Factory Excitation Hermetically Sealed Transformer Three ...

    Factory Excitation Hermetically Sealed Transformer Three Phase 10kv Oil Immersed Transformer Manufacturer, Find Complete Details about Factory Excitation Hermetically Sealed Transformer Three Phase 10kv Oil Immersed Transformer Manufacturer,1000 Kva Oil Transformer 30kva Oil Transformer S11 Oil Transformer 30kva 1000kva Oil Transformer 138kv Oil Transformer,2004kv2000kva Oil Transformer …

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  • 1000kva – UTC - UNION Transformer

    Impedance Voltage (IEC Tolerance Applied) % 6: Transformer Type: Hermetically Sealed: Cooling Method: ONAN: Weight of oil: kg: 530: Total weight of transformer: kg: 2680: Over all Dimensions Length x Width x Height: mm: 1740 x 1130 x 1625

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  • China Scb-1000/10/0.4 Three Phase 1000kVA 10kv Dry Type ...

    Dry Type Transformer, Power Transformer, Cast Resin Transformer manufacturer supplier in China, offering Scb-1000/10/0.4 Three Phase 1000kVA 10kv Dry Type Distribution Transformer, Three Proof 2000kVA Transformer Substation with IP54 Enclosure, 2500kVA Three Phase Substation Transformer with Hv and LV Panels and so on.

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  • Transformer Design & Design Parameters

    2014-12-8u2002·u2002Transformer Design: Short-circuit impedance •Current carrying conductors in a magnetic field experience force in accordance with Fleming's left hand rule. •Axial flux produces radial force and radial flux produces axial force •Conductors …

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  • Transformer cheat sheet - ABB

    2013-12-23u2002·u2002Transformer Calculations without X/R and Utility Impedance Choose from the drop down menue or fill in the blnk were required. Click above if you wish to include X/R ratios and better Utility information.

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  • Transformer Percent Impedance: %Z - Paralynx Engineering

    Transformer Percent Impedance: %Z. Transformer percent impedance is a measured value stamped on the nameplate and is actually a voltage measurement. It's a tested value that the manufacturers do for power distribution transformers and is used in the fault current calculation. This is important for coordinating over-current protection devices ...

    Get Price
  • Transformer Excitation Current – Voltage Disturbance

    2019-11-4u2002·u2002Transformer Excitation Current Vectors. Typical core loss current (I c) is around 1% of the full load current. Typically magnetizing current (I m) can vary from about 0.25% to about 5% of full load current (0.05 pu) and can be as high as 10% in some special transformers. Below is a summary of actual exciting current and no-load losses test ...

    Get Price
  • DISTRIBUTION TRANSFORMERS - alfanar

    2019-11-24u2002·u2002The short circuit impedance is the transformer's impedance, usually between 4% and 6% for distribution transformers and higher than 7% for power transformers. The short circuit impedance is the percentage of the primary rated voltage that must be applied at the transformer primary winding when the secondary

    Get Price
  • IET Forums - How To Calculate Transformer Impedance Values

    2010-7-8u2002·u2002The %impedance is on an 1MVA base and as a per unit value the impedance is 0.0471. The base impedance is (433Vx433V) divided by 1MVA. This equals 0.187489. If I now multiply 0.0471 by 0.187489 this gives me 0.0088307319 ohms which is the impedance of each phase of the transformer referred to the secondary. This is the impedance of each single ...

    Get Price
  • S15-1000kVA Series Amorphous alloy distribution transformer

    2021-6-28u2002·u2002Amorphous alloy distribution transformer SH15 - M series of amorphous alloy oil-immersed transformer is according to the market that need to launch of a new generation of energy-saving products, its magnetic circuit adopts excellent permeability resistance, low unit consumption of the new material - amorphous alloy production, can replace silicon steel core transformer …

    Get Price
  • Factory Excitation Hermetically Sealed Transformer Three ...

    Factory Excitation Hermetically Sealed Transformer Three Phase 10kv Oil Immersed Transformer Manufacturer, Find Complete Details about Factory Excitation Hermetically Sealed Transformer Three Phase 10kv Oil Immersed Transformer Manufacturer,1000 Kva Oil Transformer 30kva Oil Transformer S11 Oil Transformer 30kva 1000kva Oil Transformer 138kv Oil Transformer,2004kv2000kva Oil Transformer ...

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  • 1000kva – UTC - UNION Transformer

    Impedance Voltage (IEC Tolerance Applied) % 6: Transformer Type: Hermetically Sealed: Cooling Method: ONAN: Weight of oil: kg: 530: Total weight of transformer: kg: 2680: Over all Dimensions Length x Width x Height: mm: 1740 x 1130 x 1625

    Get Price
  • China Scb-1000/10/0.4 Three Phase 1000kVA 10kv Dry

    Dry Type Transformer, Power Transformer, Cast Resin Transformer manufacturer supplier in China, offering Scb-1000/10/0.4 Three Phase 1000kVA 10kv Dry Type Distribution Transformer, Three Proof 2000kVA Transformer Substation with IP54 Enclosure, 2500kVA Three Phase Substation Transformer with Hv and LV Panels and so on.

    Get Price
  • Transformer Design & Design Parameters

    2014-12-8u2002·u2002Transformer Design: Short-circuit impedance •Current carrying conductors in a magnetic field experience force in accordance with Fleming's left hand rule. •Axial flux produces radial force and radial flux produces axial force •Conductors are attracted to each other when currents are

    Get Price
  • Transformer cheat sheet - ABB

    2013-12-23u2002·u2002Transformer Calculations without X/R and Utility Impedance Choose from the drop down menue or fill in the blnk were required. Click above if you wish to …

    Get Price
  • Transformer Percent Impedance: %Z - Paralynx Engineering

    Transformer Percent Impedance: %Z. Transformer percent impedance is a measured value stamped on the nameplate and is actually a voltage measurement. It's a tested value that the manufacturers do for power distribution transformers and is used in the fault current calculation. This is important for coordinating over-current protection devices ...

    Get Price
  • Transformer Excitation Current – Voltage Disturbance

    2019-11-4u2002·u2002Transformer Excitation Current Vectors. Typical core loss current (I c) is around 1% of the full load current. Typically magnetizing current (I m) can vary from about 0.25% to about 5% of full load current (0.05 pu) and can be as high as 10% in some special transformers. Below is a summary of actual exciting current and no-load losses test ...

    Get Price
  • DISTRIBUTION TRANSFORMERS - alfanar

    2019-11-24u2002·u2002The short circuit impedance is the transformer's impedance, usually between 4% and 6% for distribution transformers and higher than 7% for power transformers. The short circuit impedance is the percentage of the primary rated voltage that must be applied at the transformer …

    Get Price
  • IET Forums - How To Calculate Transformer Impedance

    2010-7-8u2002·u2002The %impedance is on an 1MVA base and as a per unit value the impedance is 0.0471. The base impedance is (433Vx433V) divided by 1MVA. This equals 0.187489. If I now multiply 0.0471 by 0.187489 this gives me 0.0088307319 ohms which is the impedance of each phase of the transformer referred to the secondary. This is the impedance of each single ...

    Get Price
  • S15-1000kVA Series Amorphous alloy distribution

    2021-6-28u2002·u2002Amorphous alloy distribution transformer SH15 - M series of amorphous alloy oil-immersed transformer is according to the market that need to launch of a new generation of energy-saving products, its magnetic circuit adopts excellent permeability resistance, low unit consumption of the new material - amorphous alloy production, can replace silicon steel core transformer used for outdoor or ...

    Get Price
  • Selection of 10kv distribution transformer protection ...

    Whether in Pad-mounted transformer, ring network power supply units, or end-user high-voltage room wiring, once a 10kv distribution transformer has a short-circuit fault, the protection configuration can accurately remove the fault in a short time, ensuring 10kV high-voltage switchgear, 10kv distribution The electric transformer runs smoothly.. In the context of the continuous expansion of the ...

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  • 1,000 KVA IEM Dry Substation Transformer

    Transformer Remanufacturing. RESA Power re-manufactured transformers provide the same performance as a new transformer at a much lower cost. The RESA Power Transformer Re-manufacturing Service offers a new lease on life for this used 1,000 KVA IEM Dry Substation Transformer, enabling it to be completely rebuilt and returned to good-as-new condition, or even …

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  • S15-1000kVA Series Amorphous alloy distribution

    2021-6-28u2002·u2002Amorphous alloy distribution transformer SH15 - M series of amorphous alloy oil-immersed transformer is according to the market that need to launch of a new generation of energy-saving products, its magnetic circuit adopts excellent permeability resistance, low unit consumption of the new material - amorphous alloy production, can replace silicon steel core transformer used for outdoor or ...

    Get Price
  • Distribution Transformer

    Distribution Transformer. Silicone Oil Transformer 1000kVA, 22kV/433V. Silicone Oil Transformer 1000kVA, 22kV/433V. Silicone Oil Transformer 3000kVA-3600kVA. Mineral Oil Transformer 3000kVA, 13.8kV/480V. Silicone Oil Transformer 1600kVA, 22kV/433V. Silicone Oil Transformer 1000kVA, 22kV/433V. Silicone Oil Transformer 3000kVA-3600kVA.

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  • Current Transformer Concepts

    2020-8-6u2002·u2002The magnetizing impedance is non-linear, increasing from 3000 ohms at 0.001 amps excitation current to a maximum of 8000 ohms at 0.0248 amperes of excitation. This is the point of maximum permeability and is located by the 450 tangent to the curve. The impedance values decrease from this point as the excitation is increased reaching 49

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  • % Impedance of Power Transformer

    2014-4-1u2002·u2002I need help from you guys, We have two transformers (20MVA, 10% IMPEDANCE, 16KA fault amaps) feeding to 6.6KV switchgear (single bus). Now there is an issue with CT knee point voltage, before the consultant has designed the C.T as per transformer fault calculation. but now new setting has been issued by considering B/C close condition (2 transformer in parallel) and the incomer CT's for …

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  • Excitation Current Test on Power Transformers

    2021-3-24u2002·u2002Transformer excitation current test is usually considered as a useful diagnostic tool that can be performed often with the same equipment that can perform power factor or dissipation factor test.

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  • How do you calculate the impedance of a transformer ...

    2021-4-23u2002·u2002The open-circuit test, or no-load test, is one of the methods used in electrical engineering to determine the no-load impedance in the excitation branch of a transformer. The no load is represented by the open circuit, which is represented on the right side of …

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  • Transformers - Hitachi ABB Power Grids

    2021-9-15u2002·u2002Transformers. Hitachi ABB Power Grids is global leader in transformers, offering liquid-filled and dry-type transformers as well as services for complete life-cycle support, including replacement parts and components. Our portfolio allows utilities, industries and infrastructure sectors to maximize return on transformer assets by ensuring high ...

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  • Short Circuit Test or Impedance Test of Transformer

    2020-11-28u2002·u2002These resistance, reactance, and impedance values are referred to the high voltage ( H.V. ) side of the transformer as the test is conducted on the H.V. side of the transformer. By knowing the transformation ratio K of the transformer these parameters can also be determined at the L.V. side. Calculation of Efficiency :

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  • Factory Excitation Hermetically Sealed Transformer Three ...

    Factory Excitation Hermetically Sealed Transformer Three Phase 10kv Oil Immersed Transformer Manufacturer, Find Complete Details about Factory Excitation Hermetically Sealed Transformer Three Phase 10kv Oil Immersed Transformer Manufacturer,1000 Kva Oil Transformer 30kva Oil Transformer S11 Oil Transformer 30kva 1000kva Oil Transformer 138kv Oil Transformer,2004kv2000kva Oil …

    Get Price
  • 1000kva – UTC - UNION Transformer

    Impedance Voltage (IEC Tolerance Applied) % 6: Transformer Type: Hermetically Sealed: Cooling Method: ONAN: Weight of oil: kg: 530: Total weight of transformer: kg: 2680: Over all Dimensions Length x Width x Height: mm: 1740 x 1130 x 1625

    Get Price
  • China Scb-1000/10/0.4 Three Phase 1000kVA 10kv Dry

    Dry Type Transformer, Power Transformer, Cast Resin Transformer manufacturer supplier in China, offering Scb-1000/10/0.4 Three Phase 1000kVA 10kv Dry Type Distribution Transformer, Three Proof 2000kVA Transformer Substation with IP54 Enclosure, 2500kVA Three Phase Substation Transformer with Hv and LV Panels and so on.

    Get Price
  • Transformer Design & Design Parameters

    2014-12-8u2002·u2002Transformer Design: Short-circuit impedance •Current carrying conductors in a magnetic field experience force in accordance with Fleming's left hand rule. •Axial flux produces radial force and radial flux produces axial force •Conductors are attracted to each other when currents are

    Get Price
  • Transformer cheat sheet - ABB

    2013-12-23u2002·u2002Transformer Calculations without X/R and Utility Impedance Choose from the drop down menue or fill in the blnk were required. Click above if you wish to …

    Get Price
  • Transformer Percent Impedance: %Z - Paralynx Engineering

    Transformer Percent Impedance: %Z. Transformer percent impedance is a measured value stamped on the nameplate and is actually a voltage measurement. It's a tested value that the manufacturers do for power distribution transformers and is used in the fault current calculation. This is important for coordinating over-current protection devices ...

    Get Price
  • Transformer Excitation Current – Voltage Disturbance

    2019-11-4u2002·u2002Transformer Excitation Current Vectors. Typical core loss current (I c) is around 1% of the full load current. Typically magnetizing current (I m) can vary from about 0.25% to about 5% of full load current (0.05 pu) and can be as high as 10% in some special transformers. Below is a summary of actual exciting current and no-load losses test ...

    Get Price
  • DISTRIBUTION TRANSFORMERS - alfanar

    2019-11-24u2002·u2002The short circuit impedance is the transformer's impedance, usually between 4% and 6% for distribution transformers and higher than 7% for power transformers. The short circuit impedance is the percentage of the primary rated voltage that must be applied at …

    Get Price
  • IET Forums - How To Calculate Transformer Impedance

    2010-7-8u2002·u2002The %impedance is on an 1MVA base and as a per unit value the impedance is 0.0471. The base impedance is (433Vx433V) divided by 1MVA. This equals 0.187489. If I now multiply 0.0471 by 0.187489 this gives me 0.0088307319 ohms which is the impedance of each phase of the transformer referred to the secondary. This is the impedance of each single ...

    Get Price
  • S15-1000kVA Series Amorphous alloy distribution

    2021-6-28u2002·u2002Amorphous alloy distribution transformer SH15 - M series of amorphous alloy oil-immersed transformer is according to the market that need to launch of a new generation of energy-saving products, its magnetic circuit adopts excellent permeability resistance, low unit consumption of the new material - amorphous alloy production, can replace silicon steel core transformer used for outdoor or ...

    Get Price
  • Power Transformer Fundamentals: Design and Manufacturing

    2019-6-19u2002·u2002Standards USA (ANSI) IEEE Std C57.12.00-1993, standard general requirements for liquid- immersed distribution, power and regulation transformers ~ 50 Pages ANSI C57.12.10-1988, safety requirements 230 kV and below 833/958 through 8,333/10,417 KVA, single-phase, and 750/862 through 60,000/80,000/100,000

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  • Transformer Power Factor and Impedance - Technical Articles

    2021-6-24u2002·u2002Transformer Impedance. The induced counter-voltage in a transformer is 180° out of phase with the source. The difference between this counter-voltage and the source is the voltage dropped across the coil to provide flux to excite the coil. If the circuit were purely resistive without the inductive reactance, the low nominal resistance would ...

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  • EE301 – Transformers and Reflected Impedance Learning ...

    2021-9-13u2002·u2002EE301 – Transformers and Reflected Impedance 3 10/30/2016 Example: An amplifier is modeled with a Thèvenin equivalent impedance of 320-160j . A transformer is used to impedance match the load to the source to ensure max power transfer. a. What turns ratio should be chosen for the transformer, and what value of load resistance

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  • China SZC(B)-10 SZC(B)-11 SZC(B)12 SZC(B)13 series ...

    2021-8-2u2002·u2002Compared with the manual voltage regulation of traditional SCB series indoor dry 3-phase power transformer, SZC(B)-10 SZC(B)-11 SZC(B)12 SZC(B)13 series intelligent 3- Phase indoor dry-type Distribution transformer can realize the load through the controller on the ground remote power transfor...

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  • PRODUCT SHEET Type T DOE 2016 Efficient, Low Voltage,

    2019-3-21u2002·u2002Transformer Application Type T – DOE 2016 transformers provide efficient alternatives to conventional delta-wye or K-Rated distribution transformers. Type T – DOE 2016 transformers are ideally suited for new construction or when replacing w efficiencies as part of a power system optimization and energy reduction plan. Efficiency Confirmation

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  • Transformer Inrush Current

    2021-9-14u2002·u2002A transformer draws inrush current that can exceed saturation current at power up. The Inrush Current affects the magnetic property of the core. This happens even if the transformer has no load with its secondary open. The magnitude of the inrush current depends on the point on the AC wave the transformer is switched on.

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  • Solved: Refer To Fig 6.2(a). The Transformer Is 1000kVA, I ...

    Refer to fig 6.2(a). The transformer is 1000kVA, its impedance is 5.75%, the primary feeder impedance is 0.75%, and the secondary voltage is 408/277 V. Calcaulte the short-circuit current on the secondary of the transformer under three-phase bolted fault conditions.

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  • GitHub - rokravi/Transformer: Transformer Impedance Calculator

    Transformer. Public. Use Git or checkout with SVN using the web URL. Work fast with our official CLI. Learn more . If nothing happens, download GitHub Desktop and try again. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. Your codespace will open once ready.

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  • Short-circuit calculations using transformer and source ...

    2020-1-28u2002·u2002Step 3 — Calculate the short-circuit current on the transformer secondary bus, but this time we use the transformer impedance AND the source impedance. SCA secondary = (FLA secondary x 100) (% Z transformer + %Z source) Here is an example of the calculation. Let's say we have a transformer rated 1500 kVA with a secondary voltage of 480Y ...

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  • Electrical impedance measurement using voltage current ...

    2011-4-4u2002·u2002connected to a voltage buffer working as an impedance transformer. To obtain a current source (ii), the DAC was connected to an enhanced Howland current source based on an op amp [10]. Both op amps were AD8055, which has a low output resistance (0,1 Ω), 300 MHz bandwidth and 1400 V/μs slew-rate. The excitation pulse (voltage or

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  • Transformer Equation Notes - Rensselaer Polytechnic

    2005-1-16u2002·u2002Finding the Input Impedance First we want to find an expression for Zin, the net impedance of the source inductor in the transformer. This impedance is the combined influence of M and LS. We know that whatever Zin is, it must be the 'resistance' of the source inductor in the circuit. Therefore, we know the total impedance of the circuit ...

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  • % Impedance of Transformer - CR4 Discussion Thread

    2012-3-19u2002·u2002Dear All. A customer has specified supply of 220/33-10V Power Transformer with the following parameters. 112/82+30MVA (ONAN), 150/110+40 MVA (ONAF)Dyn1yn1 +/-10% OLTC with impedance of 13% (220-33kV), 29% (220-10kV) and 29% (33-10kV) at 110 MVA base. The transformer supplier's have expressed inability in achieving such impedances stating that ...

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  • Impedance Matching and the Selection of Transformers

    2019-1-16u2002·u2002The simplest method of matching the load impedance is to use a transformer. Transformers . A transformer is a highly efficient device (between 95-98.5%) used to transfer electrical energy from one circuit to another through electromagnetic induction (Fig 5). Transformers are made by wrapping two coils of wire (windings) around an iron/ferrite core.

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  • Ezitown Distribution board

    2015-9-2u2002·u2002Currently excitation system of large and medium water and power motors adopts automatic parallel excitation, and thus, excitation transformer is an important device in this type of excitation. The following is a typical diagram of automatic parallel excitation system. WEG Start-up Excitation power AVR SCR

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  • ZIG-ZAG GROUNDING TRANSFORMER MODELING FOR

    2017-11-29u2002·u2002of zig-zag grounding transformer with non-linear magnetic characteristic for iron core is built using ANSYS software electromagnetic package. A numerical method, based on Finite Element Analysis (FEA), is presented for computing the zero-sequence impedance of grounding transformer.

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  • Section Tapered Transformers Used in Impedance

    The impedance mismatch in transmission lines is the root cause of most reflections and power losses. There are several approaches in RF and microwave engineering for impedance matching, including stub matching, LC network matching, and controlled impedance routing. However, RF circuits use multi-section and tapered transformers to match impedance.

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  • China SZC(B)-10 SZC(B)-11 SZC(B)12 SZC(B)13 series ...

    2021-8-2u2002·u2002Compared with the manual voltage regulation of traditional SCB series indoor dry 3-phase power transformer, SZC(B)-10 SZC(B)-11 SZC(B)12 SZC(B)13 series intelligent 3- Phase indoor dry-type Distribution transformer can realize the load through the controller on the ground remote power transfor...

    Get Price
  • Manual impedance transformer for 250 watts End Fed

    Manual impedance transformer for 250 watts End Fed Antenna's PLEASE NOTE: THE 250 WATT ENDFED KIT HAS RECENTLY BEEN MODIFIED. THE KITS PURCHASED BEFORE 7 JANUARY 2021 DO NOT HAVE THE CONNECTION FOR THE COUNTER-CAPACITY. The feeding point of a multiband End Fed antenna is practically a wide band impedance transformer. This means that the…

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  • 3 winding transformer impedance - Electric power ...

    2019-5-10u2002·u2002This is a transformer with axially split LV windings. Test report is giving three impedances H-L1 = 10.2 % (12 MVA base) H-L2 = 10.15 % and H-L1+L2 (ie both LVs loaded) = 11.28% on 24 MVA base. 35.2 % is the impedance between L1 to L2 on 24 MVA base. Noting H to x and y impedance is bit misleading.

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  • Amazon.com: impedance transformer

    Impedance Matching Transformer, Ancable 10-Pack Indoor 75 Ohm to 300 Ohm UHF/VHF FM Matching Transformer Adapter with F Female Jack for Antenna and Coax Cable on TV Receiver Radio Tuner. 4.6 out of 5 stars 226. $7.99 $ 7. 99. Get it as soon as Fri, Aug 20. FREE Shipping on orders over $25 shipped by Amazon.

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