Letters/Numbers

English meaning

S

three-phase

20

Performance level code

M

Fuly hermetically sealed structure

□

Rated capacity range(30-2500KVA)

10

Rated high voltage(kV)

NX2

Class llenergy efficiency mark

Advantage dimension

detailed description.

Secondary energy efficiency,energy conservation,and
consumption reduction

The no-load loss is reduced by 20% compared to the national standard,the load loss is reduced by 15%,and the annualpower saving sexceed  1800 kWh/unit, in compliance with   the national second level energy efficiency standard

NX2 type fully sealed structure

Adopting NX2 type corrugated oil tank fuly sealed design to prevent oil leakage and operation and maintenance costs reduced by 65%

Strong resistance to short circuits and high stability

The anti short circuit capability reaches 2.5 times the national standard,the impedance voltage is 4%-6%,and suitable for complex pow er grid conditions

Low noise and environmentally friendly operation

Optimize the structure of the iron core winding,with operating noise≤52dB(at 1m),to meet industrial requirements Requirements for  noise in civil environments

Wide range protection with wide adaptability

Protection level IP67,suitable for temperatures ranging from-25℃ ~+40℃,altitude≤1000m, Support multiple deployment methods both indoors and outdoors

Standard configuration

Standard configuration

Rated capacity

30KVA~2500KVA

rated voltage

High voltage side 10KV;low voltage side 0.4KV

Phase number/frequency

Three phase/50Hz

winding connection group

Dyn11(standard) /Yyn0(optional customization)

cooling method

ONAN(oil immersedself cooling)/ONAF (forced air cooling,optional)

impedance voltage

4%(30-630KVA)/5%(800-1600)/6%(2000-2500KVA)

no-load loss

Reduced by 20%compared to GB/T6451- 2023 standard

load loss

Reduced by 15%compared to GB/T6451- 2023 standard

energy efficiency rating

National L2 Energy Efficiency

insulation class

Grade A(temperature rise limit of 65K)

Protection level

IP67(fuel tank body)

noise level

≤52dB(measured at a distance of 1m)

service life

≥25years

execution standard

GBT6451-2023,GB 20052-2023(Energy Efficiency Standards)