Pole Mounted Single Phase Transformer


  • Primary Voltage Ratings: 34.5-19.92/13.8-7.957/13.2-7.62/12.47-7.2 or others
  • Secondary Voltage Ratings: 120-240/240-480/347/600V or others
  • H.V. TAP RANGE: ±2×2.5% or others
  • TYPE: Conventional type/CSP type

Single-phase transformer is the oil-immersed transformer, and there are two types of single-phase transformers: Conventional Type and CSP Type. Rating ranging from 5 kVA to 167 kVA.


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Description


Oil-filled single-phase overhead transformers designed and produced by Daelim are normally used for stepping utility distribution voltages (ranging from 2400 to 34500 volis) down to lower uilization volages. Although some are used for stepping down to commercial and industrial voltages such as 277, 240/480, 2400 and 4800, most are used for stepping down to the single-phase voltage of 120/240.

Single phase transformer types:

There are two types of single-phase transformers, one is Conventional Type and the other is CSP Type. . Rating ranging from 5 kVA to 167 kVA.

Conventional Type

The transformer is cylinder sealing structure.Each one is fixed with grounding devices, hooks, supporting lugs which conforms to ANSI standard, and or ore two high voltage bushing on the cover, low voltage bushing one the wall of tank and eyebolt, connecting terminals. The tap changer should be adjusted basing on the instruction after the power off.


CSP Type

This type of sing phase transformer can protect itself from thunder and lightning, short circuits, and protect the transiting and distribution line from current failure because of self malfunction.

Except for some similarities such as cylinder tank, hooks, lifting lugs, grounding devices, nameplates, core, and winding with the conventional type. This type of sing phase transformer has characteristics and devices as follows:

One or two high voltage bushings are on the cover with a fuse.

One or two arresters are installed on the wall of the tank, whose top en dis near to the voltage bushing, and connected to the bushing by a copper strip. One secondary breaker switch is above the winding inside the tank, and here are operating handle, overload reset and signal light.

All units are built in accordance with IEC60076, ANSI/IEEEC57.12.20, CSA C2.1-06, CSA C2.2-06 and etc.

100 kVA Single Phase Transformer Diagram


 

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