SPECIAL APPLICATIONS

Besides the general purpose products, special versions meet the most demanding requirements: COTRA's special versions meet the most demanding requirements:
 
TROPICALISATION

For operating in extended temperature ranges and high   Degree of humidity, e.g. -25 to + 60°C, humidity deg. 95% to 35°C.

H2S - PROOF VERSION

For installation of panel-mounting instruments in very hostile environments with corrosive gas like H2S (sulphuric hydrogen) up to 10 ppm. Typical applications include geothermal plants, sewerage treatments, Soda chemical plants. etc.
 

    DOUBLE INSULATION
Sometimes the line-to-ground voltages in some application may exceed the standard operating conditions.
To avoid faults and damages, COTRA's  equipment's insulation can be optionally improved at higher level:

- Transformers and analog meters: 9 kV
- Transducers: 4 kV
- Rms voltage, 50 Hz, applied for 60 sec.
 

  SEALABLE ELECTRONIC kWh METERS





The electronic kWh meters of type C96 - C144 - CSPE allow the sealing of the terminals.
 

 

SHIP-MOUNTING VERSION

Allow COTRA products to be operated on board of ships, oil drilling platforms etc.
These improvements are applied:
- Tropicalization 
- Housings made in flame-retardant materials (cl.V0)
- Vibration-proof
 

© Copyright 2000 Cotra S.r.l.