HV nominal voltage: 3 AC 22 kV (35 kV) 50 Hz

LV nominal voltage: 3/PEN AC 420/242 V 50 Hz / TN-C,

Frequency: 50 Hz

Transformer nominal power: to 2x1 000 kVA

HV bus-bars nominal current: regarding HV distributor´s type to 630 A

LV bus-bars nominal current: to 1 500 A

HV / LV distributor nominal insulation voltage: 24 kV / 1 000 V

HV distributor short-time / dynamic current: 16 kA / 40 kA

LV distributor short-time / dynamic current: do 30 kA / do 60 kA

LV distributor cover: IP 20

Whole station cover: IP 23D

Temperature coefficient (Cover class): K 20

Empty skeleton weight: cca 29 000 kg (in exposed aggregate concrete design)

External dimensions: 7 140x2 320x3 550 mm (without roof overlap)

Environment:

• 3.1.1. basic (within the kiosk-type TS rooms),
• 4.1.1. ambient, ordinary (outside the TS rooms -)

Exposure class:

• for internal components: XC1
• for external components: XC4, XF1, XA1.

Operating conditions:

• ambient temperature –40°C ≤ t ≤ + 40°C
• altitude up to 1 000 m asl.

Note: If the transformer substation is used in different climate and operating conditions, the TS supplier is must be consulted.