Smart Transformer for Smart Grid

Smart Transformer for Smart Grid

The Smart transformer is one of EGYTRAFO’s new products. They are designed to monitor and manage the power supply during fluctuations and ensure getting optimum voltage when new demands are being added to the existing loads.

Smart transformers are intelligent enough to meet the requirements of upcoming power system, so they will be highly popular in the future. Moreover, they improve the reliability power quality and supply.
Smart Transformer Main Components
It consists of a distribution transformer that is manufactured according to the latest IEC standards and the Electrical Holding Company requirements. The transformer is made of the best quality materials that ensure the lowest losses and highest efficient performance. In addition to the following:
- On load tap changer compatible with the transformer size
- On load top changer intelligent controller provided with A.V.R device - Remote Terminal Unit (R.T.U)
Smart Transformer Features
Controlling the transformer operation and performance
  • Protects the power system from load disturbance due to harmonicas, transient and voltage sage
  • Improves the power quality by summarizing load to get identical load current on each phase &Controls the o/p voltage of transformer by adjusting the tap position of the on-load tap changer using the built-in AVR

    Monitoring transformer operation in service:-
  • Oil and winding temperature
  • Ambient temperature
  • Load currents and delivered load value
  • Pressure relay operation
  • Smart Transformer Operation
    The Smart Transformer can be operated manually, automatically and remotely using remote terminal unit (R.T-U)
    Automatic Voltage Regulator (AVR) with on Load Tap changer

    Smart Transformer Technical Specifications

    Rated voltage
    It is produced with two voltage system 12 KV and 24 KV with ratio 12/0.4 KV or according the customer requirements
    Rated power:
    It is produced with power starting from 500 KVA Up to 10000 KVA
    Tapping
    It is produced with 5,7 and 9 steps, voltage ± 2.5%
    Connection
  • D-Y connection with the requited Victor group
  • Y-Y connection is also available
    Transformers’ impedance voltage, no load losses, load losses, over load capacity, temperature rise, noise & harmonic level all are according to the latest IEC Standard and the Holding Company Technical Specification.

  • Transformer Oil
    The transformer is filled with new purified oil that comply to the technical specifications according to IEC standard 60296
    • Standard Accessories
    • Optional Accessories
    • On-Load Tap Changer

    - Rollers   - Drain valve
    - Lifting Lugs
    - Earth terminals    - Dial thermometer
    - Rating & diagram plate
    - Dehydrating breather (Silica gel type)
    - Oil conservator with oil level indicator

    - Marshaling box                    
    - Double float buchholz relay                  -Thermometer with auxiliary contacts
    - Pressure relief valve
    - Winding temperature controller
    - DGPT instrument for hermetic type
    - HV cable end box and LV cable end box

    The used On-Load Tap Changer is In Tank Type and is according to the transformer Size
    The O.L.T.C may be operated:
    A - Manually from the top changes control cubicle
    B- Automatically using automatic voltage regulator device.

    EGYTRAFO SUPPORT

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    About EGYTRAFO

    EGYTRAFO Group is a leading manufacturer of Oil, Dry Transformers and Nickel Cadmium Batteries. We had been working since 1979, when we first established our trading company “ETCO”..
    Catalogue

    The 3-phase Automatic Voltage Regulator (AVR)