NOMINAL CHARACTERISTICS

– Power range: 45 to 3,000 kVA

– Primary voltages:

• Class 15 kV: NBI 95 kV
• Class 24.2 kV: NBI 125 kV
• Class 36.2 kV: NBI 150 kV

 

– Secondary voltages: 220/127 V, 380/220 V or 440/254 V;

Frequency: 60 Hz

– Temperature rise: 55°C

– Thermal class: 105°C

STANDARD FEATURES

– Complies with Brazilian standards;

– Meets the standards of the electricity concessionaires;

– Secondary terminals;

Grounding terminals;

– Primary bushings;

– Simple insertion plug with deadbreak;

– Drain valve;

– Filling plug;

– Pressure relief device;

– Hanging ear;

– Identification plate;

Oil level indicator;

Mineral insulating oil;

OPTIONAL FEATURES

– Temperature rise: 65 or 75°C;

– Simple insertion plug loadbreak;

– No-load tap changer with internal actuation (in transformers with taps);

– Inspection cover;

– Pressure and/or vacuum indicator;

Oil level indicator with or without electrical contacts;

Vegetable insulating oil;

– Pressure relief device with or without electrical contacts;

– Low-voltage flanges for coupling a network protector;

– Paint for harsh environments;

– Frequency of 50 Hz.