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Mining Transformers

Mining Transformers

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Flameproof transformer

  • ♦mining explosionproof transformer has Excellent explosion-proof performance and mechanical strength
  • ♦Vertically lifted structure adopted
  • ♦mining transformer Adpoted cylinertype HV winding to strengthen resistance to over-voltage
  • ♦Integrated HV and LV winding, increase mechanical strength and short-circuit resistance by vacuum-pressed dipped technology

 

Flameproof transformer
explosionproof transformers
2000KVA exproof underground transformer
mining dry type transformers
mining transformes

Related product parameters

Main Specifications
Transformer type dry type
Frequency 50/ 60 hz
Rated capacity Up to 8000kVA 
Rated voltage Up to 10kV
Insulation class  H  , C 
Cooling mode ANAN
Explosion-proof type ExdIMb
lightning impulse withstand voltage（Peak） 75kv, 60kv
Connection code Yd, Dyn, Yyn etc.
Enclosure class IP54  IP55
Zone Zone 1, Zone 2

WHY Choose VERELEN

  1. One of the draftersof the National Standard Mine Flameproof Mobile Substations (GB/T 8286-xxxx ), which will replace the existing national standard (GB/T 8286-2005 ) and it was submitted for trial in Beijing.
  2. +20 yearsexperience R&D team, derived from a 60 years of history transformer manufacturer in Changsha, Hunan, China since 1956.
  3. Full rangeof transformer types with customized functions are available.

FACTORY TEST

For each transformer are prepared and issued a test report, in accordance with IEC 60079.  except for routine tests, we also offer type tests and specialised tests to meet all customer requirements. We make what matters work for our customers in a safe and reliable way.

mining flameproof transformer

Routine Test

  •   Measurement of winding resistance
  •   Measurement of voltage ratio and check of phase displacement
  •   Measurement of short-circuit impedance and loss
  •   Measurement of no-load loss and current
  •  Dielectric routine tests
  •   Tests on on-load tap-changers, where appropriate
  •   Leak testing with pressure for liquid-immersed transformers(tightness test)
  •   Tightness tests and pressure tests for tanks for gas-filled transformers

 Type Test

  •  Temperature-rise type test
  •  Dielectric type tests
  •  Determination of sound level for each method of cooling for which a guaranteed sound level is specified

 Special Test

  •  Dielectric special tests
  •  Winding hot-spot temperature-rise measurement
  •  Determination of capacitances windings-to-earth, and between windings
  •   Measurement of dissipation factor(tanδ) of the insulation system capacitances
  •  Determination of transient voltage transfer characteristics
  •  Measurement of zero-sequence impedance(s) on three-phase transformers
  •  Short-circuit withstand test

 

Contact information

Emailsales@varelen.com Tel+86 19373185639 Fax+86 731 84371029 Phone/WeChat+86 19373185639

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