Medium voltage instrument transformer for indoor service
3 kV, 30 - 800 A | TAN1M
Revalco
- Frequency: 40 - 60Hz
- Test voltage: 3kV for 1 minute
- Insulation: class E
- Permanent overload: 1,2 In
- Minimum protection degree: IP55
- Thermic current (Ith): 40 - 80 Ipn for 1 second
- Dynamic current (Idin): 2,5 Iter for 1 second
- Safety factor (Fs): < 10 for the measuring
transformers
- Working temperature: -25°C ÷ +50°C
- Storage temperature: -40°C ÷ +80°C
- Standards CEI 38-1
- Measuring CT: primary P1-P2 secondary 1S1
(blue wire) - 1S2 (black wire)
- Protection CT: primary P1-P2 secondary
2S1(red wire) - 2S2 (grey wire)
Mechanical characteristics
- Metallic tube, thickness 3mm
- Metallic base, thickness 2mm on which the
earth screw is soldered
- Dust varnishing in black colour
- Tropicalisation and antivibrating system
included as that the magnetic core is
immersed in quartzed resin
- Secondary wires, coloured: lenght: 30 cm
- section: 2,5 mm2
Other characteristics on request
