Business Introduction Switch

25.8kV Polymer Cutout Switch

Properties and Uses of the Product

  • Nominal Voltage 25.8kV
  • Rated Current 100A
  • Frequency 60Hz
  • Rated Breaking Current Asymmetrical - 12kA / Symmetrical - 8kA
This extra-high voltage polymer cutout switch is used to protect and break the 25.8kV distribution line pole transformers via attachment to the primary side.
Properties
Capable of completely opening and closing transformer load current / line charging current
This switch is structured in a way that it opens via the releasing of gas. Opening and closing statuses can be easily checked from the ground, and damage from birds can be minimized.
Use of a polymer material with excellent tracking resistance, that is also weatherproof, to maintain electrical/mechanical properties of the external environmental protection insulator
Operation Method
  • If there is a problem in the transformer – Automatic breaking operation
  • When inspecting and breaking the transformer – Manual operation of COS stick
Type PM-COS125
Rated Voltage (kV) 25.8kV
Rated Current (A) 100A
Rated Frequency (Hz) 60Hz
Rated Breaking Current (kA) Asymmetrical root-mean-square - 12kA / Symmetrical root-mean-square - 8kA
Power Frequency Withstand Voltage (kV/minute) 42
Lightning Impulse Withstand Voltage (kV BIL) 125
Operation Method Automatic, Manual
No-load Switching Test 300 times
Insulation Medium Polymer
Installation Type Pole-mounted (bracket)
Weight (kg) 4.7kg
Applied Standards IEC 60587, 62217, IEEE C37.41
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