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TB-RV 3M

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Product Description

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This product is also available in a food compliant manner – please contact us for further information.

Power transformers

5-10 MVA

Application opjective

Drying incoming air

Use according to ATEX 2014 / NEC50

No

Operating environment

Indoor / below deck, Outdoor / on land

Substance in container

Class 1: Hydraulic oil, gear oil, biological oil, vegetable oil, transformer oil

Installation

Hanging

Handling

Rechargeable

Housing

Plastics

Sealing

FKM

Valves

Yes (IN-OUT)

Connections

DIN42562, DIN42567A, DIN42567B, DIN42567C-G1"f, DIN42567C-G1/2"f, DIN42567C-G3/4"f

Downloads

Product flyer
Food Conformity Sample
Customs information
EAC Template
REACH Compliant
IP Protection Class IP66
RoHS Compliant
Corosivity Class C4
CE Conformity
Manual
CAD data and more files on request

Structure and added value

1DIN connections:
Available with all DIN connections

2Sustainability:
Refillable version ensures favorable operating costs

3Filter:
Clean supply air due to integrated 2μm fibre glass filter

4Self regeneration:
Increase in utilization times through the use of activated carbon

5Desiccant:
Efficient desiccant with harmless color indicator from orange – green

6Valves:
Protection against unnecessary loading. Valves ensure long service life

Method of operation

Adsorber – supply air filtration

  • Level in transformer decreases
  • Humid air is sucked in
  • Valves open at 5 mbar
  • Uniform flow
  • Air is dried up to 2%rH
  • Silicagel changes color
  • Air is filtered up to 2μm

Dry and clean supply air

Desorption – Separation oil particles

  • Level in transformer increases
  • Dry, oily air is squeezed out
  • Activated carbon absorbs all oil particles
  • Dry, oil-free air regenerates silica gel

Self regeneration and oil-free exhaust air

Technical Data

Flowchart

The sucked-in air opens the valves in the lower part of the adsorber already at approx. 5 mbar. After flowing into the adsorber, the air is distributed evenly over the cross-section. A pre-filter disc removes coarse dirt particles from the air.

When the desiccant silica gel flows through, the water molecules are reliably removed from the air. The gap volume of the granulate is optimally selected with 2 to 5 mm grains and guarantees a minimum pressure build-up with simultaneous very good drying efficiency. Thus, at the beginning of the drying process, a residual air humidity of max. 2 % rH and a dew point of -40 °C are achieved. Due to the water absorption, the silica gel in the standard turns from orange to green, indicating the end of the product life cycle. 3 µm filter pad ensures that all dirt particles are separated from the ambient air and the silica gel and that the connected transformer is not contaminated.

In the case of outgoing air, the activated carbon prevents contamination of the silica gel and thus blocks the water-absorbing pores, allowing the adsorber to self-regenerate.

These adsorbers are made of aluminum, polycarbonate, polyamide, silica gel orange, FKM and can be used for the ventilation of all transformers by means of all DIN connections.

Pressure ratio

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This product is compatible with