SZ9 Series Transformer Product Details

I. Product Introduction

Three-phase oilsubmerged transformerswith crane switching, industrial and mining enterprises, as well as commercial complexes.

It features high-permeability silicon steel sheets, oxygen-free copper windings, and on-load switches, enabling voltage regulation under load without interrupting power supply. It features low losses, high stability, and a long service life, providing stable power in scenarios with severe voltage fluctuations and high power quality.

II. Basic technical parameters (customizable)

Main Features

• Nominal capacity:

  10KVA-5000KVA (10 kV class);

  50kVA-63000kVA (35kV class)

• Communication group: Yyn0, Dyn11

• Cooling mode: ONAN (natural cooling with oil coating)

  Security and Protection

• Safety devices: pressure relief valve, gas relay, alarm thermometer

• Insulation level: LI75AC35 (10 kV); LI200AC85 (35 kV)

III. Main Features

1. Voltage stabilization under load, no power outages

   The on-load transfer switch supports manual, automatic, and remote control. Voltage can be precisely adjusted during operation, adapting to large grid fluctuations and ensuring stable power quality.

2. Ultra-low losses, long-term energy savings

   It utilizes a highly permeable silicon steel sheet and a multi-stage fluted core. It offers outstanding annual energy savings and reduced operating costs.

3. Reliable design, strong short circuit resistance

   Equipped with oxygen-free copper windings, corrugated oil channels, and a new insulation design with high mechanical strength, the core is securely mounted and short-circuit-tested for safer operation.

4. Fully sealed and durable, easy maintenance

   The corrugated oil tank and fully sealed design slow down oil degradation. Full protection devices are standard, require little maintenance, and are suitable for both indoor and outdoor installations.

5. Standardized and customizable

IV. Application Scenarios

• Power grid distribution: urban and rural substations, industrial park substations, distribution facilities for residential areas

• Industrial production: mining, metallurgy, chemical industry, textile, electronics and other voltage-sensitive production lines

• Commercial infrastructure: shopping malls, hospitals, data centers, rail transport, airports and stations

• Special scenarios: areas with unstable voltage at the ends of the network, public facilities with strong load fluctuations