Letters/Numbers

English meaning

S

Three-phase

Z

On load voltage regulation

□

Design code

□

Rated capacity(3150~31500KVA)

Rated capacity range

35

Rated high voltage(KV)

Advantage dimension

detailed description.

High voltage on load precise voltage regulation

Voltage regulation range±4×2.5%,real-time voltage stabilization w ith load,voltage accuracy±0.5%,  Adapt to 35KV power grid fluctuation conditions

Dual w inding high efficiency and low consumption

The no-load loss is reduced by 20%compared to the national standard,the load loss is reduced by 15%,and the annual power savingsexceed 3000kWh /unit,compliant with high-efficiency distribution standards

Strong resistance to short circuits and high reliability

The anti short circuit capability reaches 2.5 times the national standard,the impedance voltage is 6%-8%

Fully sealed long-life design

The fully sealed structure of the corrugated oil tank prevents oil leakage 、 30%reduction in insulation aging rate

Strong adaptability to wide range protection

Protection leve lP67,suitable for-40℃~+40 ℃,altitudes 15000m,supports Outdoor (with protection)/lndoor Distribution Room Deployment

parameter name

Standard configuration

Rated capacity

3150KVA~31500KVA

rated voltage

35KV

Phase number/frequency

Three phase/50Hz

pressure regulation method

On load voltage regulation,voltage regulation range±4×2.5%

winding connection group

YNd11(standard)/Yyn0(optional customization)

cooling method

ONAN(oilimmersed self cooling)/ONAF(forced air cooling,optional)

impedance voltage

7%(3150-5000KVA)/7.5%(6300-10000KVA)/8%(12500-20000kVA)/10%(25000-31500kVA)

no-load loss

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

load loss

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

insulation class

Grade A(temperature rise limit of 65K)

Protection level

IP67

noise level

≤60dB(measured at a distance of 1m)

service life

≥25years

execution standard

GB/T6451-2023、EC60076-8