SECONDARY CABINS APPROVED ENEL – DY800 DY-803 DY-696 DY-697-DY740

Tipo DY 800

Nominal characteristics

Maximum insulation voltage	24 kV
Rated insulation level, sealing tensions:
Lightning impulse to earth and between phases:	125 kV
Pulse between open contacts of the switch:	145 kV
Power frequency to earth and between phases:	50 kV
Rated frequency	60 kV
Rated frequency	50 Hz
Rated current in continuous service for the bars:	400 A
Permissible rated short duration for the bars and the derivations	12,5 kA
The permissible current peak value of short duration for the bars and the derivations	31,5 kA
Rated duration of short circuit	1 s
Degree of external protection	IP 3X
Accessibility class (internal arc)	A

Tipo DY 803

Nominal characteristics

Maximum insulation voltage	24 kV
Rated insulation level, sealing tensions:
Lightning impulse to earth and between phases:	125 kV
Pulse between open contacts of the switch:	145 kV
Power frequency to earth and between phases:	50 kV
Industrial frequency between open contacts of the switch:	60 kV
Rated frequency	50 Hz
Rated current in continuous service for the bars:	400 A
Short time withstand current for the bars and the derivations	12,5 o 16 kA
Value of the permissible short-time peak for the bars and the leads	31,5 o 40 kA
Rated duration of short circuit	1 s
Degree of external protection	IP 3X
Accessibility class (internal arc)	A

Tipo DY 696, DY 697, DY 740

Nominal characteristics

Maximum insulation voltage	24 kV
Rated frequency	50 Hz
Rated current in continuous service for the bars:	1600 A
Short time withstand current for the bars and the derivations	12,5 o 16 kA

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