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Transformers（Insulation type：A type Page2）

A transformer is a device that changes the voltage, also called a power transformer. Performs the step-down and step-up of AC voltage, and makes adjustments necessary for use in electronic devices. The transformer has a structure in which a primary coil and a secondary coil are wound around an iron core. Depending on the position of the iron core and the coil, it is divided into an inner iron type where the coil covers the iron core and an outer iron type where the iron core is outside the coil. Wiring methods are classified into two types: single-phase, which is a 100 V power supply used in offices, and three-phase, which is a 200 V power supply that sends a large amount of power. The winding of the coil is usually compound wound in which the primary and secondary sides are insulated, but there are also smaller auto transformers. There are also types that can be connected with the cover attached, types that can be used overseas and in Japan, portable types that are suitable for on-site construction with different power and voltage, etc.

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    Transformer in Case, SCK21 Series

    Transformer in Case, SCK21 Series

    SWALLOW ELECTRIC

    SCK21 series. Terminal block (up-screw) cover which has become one with protection cover. Work time is sharply shortened than other brand because wiring is available without screw-off.

    Primary voltage(V) Capacity(kVA) Secondary voltage(V) Number of phases/winding Insulation type Input/output terminal shape Dimension vertical(mm) Shield presence With/without Case Dimension width(mm) Dimension depth(mm)
    AC200-220 0.05 AC100-110 Single-phase/Double-winding A type Up screw type terminal block 135 NA Available 180 150
    From: ₹ 8,095.04
    Days to Ship: 5 Day(s) or more
    day to ship 5 Day(s) or more

  • You can add up to 6 items per a category to the compare list.

    Power Supply Transformer, SG21-E Series

    Power Supply Transformer, SG21-E Series

    SWALLOW ELECTRIC

    SG21-E series. Terminal block (up-screw) cover which has become one with protection cover. Work time is sharply shortened than other brand because wiring is available without screw-off.

    Primary voltage(V) Capacity(kVA) Secondary voltage(V) Number of phases/winding Insulation type Input/output terminal shape Dimension vertical(mm) Shield presence With/without Case Dimension width(mm) Dimension depth(mm)
    AC190-200-210 0.1 ～ 0.3 AC100-110-115 Single-phase/Double-winding A type Up screw type terminal block 102 ～ 117 Available NA 96 ～ 128 103 ～ 131
    From: ₹ 6,642.07
    Days to Ship: 5 Day(s) or more
    day to ship 5 Day(s) or more

  • You can add up to 6 items per a category to the compare list.

    SO21 Series Single-Winding Transformer

    SO21 Series Single-Winding Transformer

    SWALLOW ELECTRIC

    SO21 series. Terminal block (up-screw) cover which has become one with protection cover. Work time is sharply shortened than other brand because wiring is available without screw-off.

    Primary voltage(V) Capacity(kVA) Secondary voltage(V) Number of phases/winding Insulation type Input/output terminal shape Dimension vertical(mm) Shield presence With/without Case Dimension width(mm) Dimension depth(mm)
    AC200-220 0.05 ～ 0.75 AC100-110 Single-phase/single-winding A type Up screw type terminal block 92 ～ 131 NA NA 77 ～ 128 88 ～ 117
    From: ₹ 3,599.47
    Days to Ship: 5 Day(s) or more
    day to ship 5 Day(s) or more

  • You can add up to 6 items per a category to the compare list.

    Single-phase Auto Power Transformer, SOK21 Series

    Single-phase Auto Power Transformer, SOK21 Series

    SWALLOW ELECTRIC

    SOK21 series. Terminal block (up-screw) cover which has become one with protection cover. Work time is sharply shortened than other brand because wiring is available without screw-off.

    Primary voltage(V) Capacity(kVA) Secondary voltage(V) Number of phases/winding Insulation type Input/output terminal shape Dimension vertical(mm) Shield presence With/without Case Dimension width(mm) Dimension depth(mm)
    AC200-220 0.1 ～ 0.75 AC100-110 Single-phase/single-winding A type Up screw type terminal block 150 ～ 210 NA Available 180 ～ 220 135 ～ 180
    From: ₹ 8,501.20
    Days to Ship: 5 Day(s) or more
    day to ship 5 Day(s) or more

  • You can add up to 6 items per a category to the compare list.

    Surge And Noise Absorbing Transformer, VS Series

    Surge And Noise Absorbing Transformer, VS Series

    SWALLOW ELECTRIC

    VS series, protect machines all around by absorbing surge and noise. Terminal block (upscrew) cover which is a integral structure of protection cover. Simple wiring without screw-off.

    Primary voltage(V) Capacity(kVA) Secondary voltage(V) Number of phases/winding Insulation type Input/output terminal shape Dimension vertical(mm) Shield presence With/without Case Dimension width(mm) Dimension depth(mm)
    AC100-110 0.1 ～ 0.3 AC100-110 ～ AC200-220 Single-phase/Double-winding A type Up screw type terminal block 103 ～ 131 Available NA 96 ～ 128 102 ～ 117
    From: ₹ 6,352.76
    Days to Ship: 5 Day(s) or more
    day to ship 5 Day(s) or more
Brand
Product Series
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Primary voltage(V)
Capacity(kVA)
Secondary voltage(V)
Number of phases/winding
Insulation type
Input/output terminal shape
Dimension vertical(mm)
Shield presence
With/without Case
Dimension width(mm)
Dimension depth(mm)

    You can add up to 6 items per a category to the compare list.

    Transformer in Case, SCK21 Series

        You can add up to 6 items per a category to the compare list.

        Power Supply Transformer, SG21-E Series

            You can add up to 6 items per a category to the compare list.

            SO21 Series Single-Winding Transformer

                You can add up to 6 items per a category to the compare list.

                Single-phase Auto Power Transformer, SOK21 Series

                    You can add up to 6 items per a category to the compare list.

                    Surge And Noise Absorbing Transformer, VS Series
                      Brand

                      SWALLOW ELECTRIC

                      SWALLOW ELECTRIC

                      SWALLOW ELECTRIC

                      SWALLOW ELECTRIC

                      SWALLOW ELECTRIC

                      Product Series

                      Transformer in Case, SCK21 Series

                      Power Supply Transformer, SG21-E Series

                      SO21 Series Single-Winding Transformer

                      Single-phase Auto Power Transformer, SOK21 Series

                      Surge And Noise Absorbing Transformer, VS Series

                      CAD
                      From

                      ₹ 8,095.04

                      ₹ 6,642.07

                      ₹ 3,599.47

                      ₹ 8,501.20

                      ₹ 6,352.76

                      Days to Ship 5 Day(s) or more 5 Day(s) or more 5 Day(s) or more 5 Day(s) or more 5 Day(s) or more
                      Primary voltage(V)AC200-220AC190-200-210AC200-220AC200-220AC100-110
                      Capacity(kVA)0.050.1 ～ 0.30.05 ～ 0.750.1 ～ 0.750.1 ～ 0.3
                      Secondary voltage(V)AC100-110AC100-110-115AC100-110AC100-110AC100-110 ～ AC200-220
                      Number of phases/windingSingle-phase/Double-windingSingle-phase/Double-windingSingle-phase/single-windingSingle-phase/single-windingSingle-phase/Double-winding
                      Insulation typeA typeA typeA typeA typeA type
                      Input/output terminal shapeUp screw type terminal blockUp screw type terminal blockUp screw type terminal blockUp screw type terminal blockUp screw type terminal block
                      Dimension vertical(mm)135102 ～ 11792 ～ 131150 ～ 210103 ～ 131
                      Shield presenceNAAvailableNANAAvailable
                      With/without CaseAvailableNANAAvailableNA
                      Dimension width(mm)18096 ～ 12877 ～ 128180 ～ 22096 ～ 128
                      Dimension depth(mm)150103 ～ 13188 ～ 117135 ～ 180102 ～ 117

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                      Related Categories to Transformers

                      FAQ Transformers

                      Question: What is the difference between 1 phase transformers and 3 phase transformers.
                      Answer: 1. In a single-phase transformer, the electricity is supplied through two wires called Line and neutral. In three phase transformers, the electricity is supplied through three wires (four wires if neutral wire is included).
                      2. The voltage of single-phase transformer supply is 230V whereas three-phase transformer supply is 415V.
                      3. The efficiency of a three-phase transformer is significantly higher than a single-phase supply and the power transfer capability is also more.
                      Question: How many types of transformers?
                      Answer: Type of transformer can be separated by different types of applications.
                      1. Transformer types based on core structure.
                         1.1) Iron core transformer
                         1.2) Shell core transformer
                         1.3) H-type core transformer
                      2. Transformer types based on electric system.
                         2.1) Single-phase transformer
                         2.2) Three-phase transformer
                      3. Transformer types based on voltage level.
                         3.1) Step-up transformer which is use for boost voltage up then transmit to secondary side.
                         3.2) Step-down transformer which is use for reducing voltage down then transmit to secondary side.
                         3.3) Isolation transformer which voltage at primary and secondary side are same. Typically, applicable for Laboratory which is need stable voltage and current.
                      Question: What is transformer maintenance method?
                      Answer: 1. Should install and using in low-humidity to prevent short circuit issue.
                      2. Installation place should be good for heat transfer.
                      3. Always keep cleaning heat transfer component.
                      4. Always keep inspection terminal and wire.
                      Question: Why transformer is necessary?
                      Answer: Transformers is necessary because each electric device need different level of voltage. So, we must use transformer to adjust the electrical voltage from power source to sub-unit. Such as, reduce voltage from high-power electric post to the building and transformer for reduce voltage level from electric source of building to each electrical home appliance as well.

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