AIS - Air Insulated Switchgear

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AIS - Air Insulated Switchgear

When it comes to switching at medium-voltage level, fulfilling basic functionalities is just one of the purchasing criteria. The real decision will be whether you choose any kind of basic switchgear, or you go for a long-term reliable power distribution backed up by best technology and dependable after sales service. If this is the kind of added value you are looking for, go for AIS Panels offered by Dhafir Group for General Trading. Experience for yourself the excellent benefits and high quality of our air-insulated medium-voltage switchgear. Our know-how and experience will ensure Peace of Mind throughout the lifecycle of our products. You have access to unique and proven technology, combined with that profound knowledge of local and regional requirements which our highly qualified experts can provide. Eventually what counts is a long-term power supply distribution with the benefits that our air-insulated medium-voltage switchgears offer:
  • Peace of Mind
  • Saves Lives
  • Increases Productivity
  • Saves Money
We provide a wide range of air-insulated switchgear products that are manufactured to meet the highest and latest international standards. These products are mainly used for control and protection in medium-voltage power circuits for industrial, commercial and utility installations.
They are designed, manufactured and type-tested in accordance with the latest IEC standards and GCC region specifications.

Rated Voltage

12/17.5/24/36 kV

Main Bus current Ratings

(630/1250/2500/3150)A

Internal Arc Classification

AFLR (31.5 kA/1s)

Frequency

L50 Hz

Loss of Service continuity

LSC2B-PM

ADVANTAGES OF AIR AS AN INSULATING MEDIUM IN MV SWITCHGEAR:

  • Well established technology worldwide for more than 100 years
  • Leakage free, 100 % guaranteed.
  • No greenhouse discussions, not yesterday, not today and never in future
  • No handling of gases on site
  • No pressure / density / humidity monitoring required.
  • Withdrawable circuit breaker
  • Fully accessible for all switchgear parts
  • Retrofitable at any time for future demands
  • Easy to customised for local / specific requirements

TECHNICAL SPECIFICATIONS:

  • Air insulated Medium Voltage Metal clad switchgear, as per IEC 62271-200.
  • Rated Voltage: 12/17.5/24/36 kV
  • Main Bus current Ratings: (630/1250/2500/3150)A
  • Functional units: Incoming Feeder, outgoing Feeder, Bus Riser, Bus Section, Bus VT (Bus Earthing).
  • Short circuit withstand current up to 31.5 kA.
  • Short circuit duration tsc=3 sec
  • Frequency: 50 Hz
  • Internal Arc Classification: AFLR (31.5 kA/1s)
  • Loss of Service continuity: LSC2B-PM