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Main competitive strengths of Electroshield-C° products

All parameters confirmed with test protocols

For current transformers of TLO-10, TLO-24, TLP-10 types:

  • Noise immunity and electromagnetic emission (under GOST R 51317.6.5-2006, GOST R 50746-2000 and GOST R 51318.11-2006) assessment criteria: at least class A group 1.
  • Resistance to electromagnetic interference on exposure to power frequency magnetic field GOST R 50648.
  • Compliance with rates for industrial radio interference voltage under GOST R 51318.11-2006.
  • Creepage distance (GOST 9920-89) criteria: not less than 1.6 cm/kV.
  • Tracking resistance index (GOST 27473-87) criteria: at least CTI 450.
  • Seismic resistance (MSK-64) up to 9 points.
  • Partial discharge level (GOST 7746) criteria – not more than 5-10 pC.
  • Service life – 30 years.

Voltage transformers of ZNOL(P)-EK-10 type for 3-6-10 kV; ZNOL(P)-EK-15, ZNOL-EK-24:

  • Test voltage of secondary winding insulation – 5 kV.
  • Measuring resistance of secondary winding insulation – with megohmmeter for 2500 V.
  • Seismic resistance (MSK-64) up to 9 points.
  • Tracking resistance index (GOST 27473-87) criteria: at least CTI 450.
  • Creepage distance (GOST 9920-89), criteria: not less than 1.6 cm/kV.
  • Partial discharge level (GOST 1983-2001) - not more than 5-10 p.
  • Service life – 30 years.

Current transformers of TV-EK type

  • Seismic resistance (MSK-64) not less than 9 points.
  • Service life - 45 years.
  • Certification with PJSC FGC UES and PJSC ROSSETI up to 750 kV.

General advantages of the products:

  • Seismic resistance (MSK-64) – up to 9 points.
  • Re-verification interval – 8 years.
  • Partial discharge level (GOST 1983-2001) – not more than 5-10 pC.
  • Climatic modifications – N (temperate climate), NF (temperate and cold climate), Т (tropical climate). Placement categories – 2,3. For TV-EK types – 1,2,3.
  • Conformity certificate for fire safety under GOST 12.2.007.0-75.
  • Certification with PJSC FGC UES and PJSC ROSSETI
  • Licenses of the Federal Service for Environmental and Nuclear Supervision entitling to design and produce electrical equipment for nuclear power stations.
  • Permission to apply the products in PJSC RusHydro.
  • Compliance with Shipping Register requirements – Positive tests under clauses 10.5.3.3, 10.5.3.4, 10.5.3.5, 10.5.3.6 “Rules for technical supervision over ship construction and producing materials and products for ships”, Book 2, Part IV, Section 10.