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SZ □-M Series On-load Voltage-regulating Transformer

The 10kV on-load voltage regulating transformer produced by Hezong Technology is a transformer that can adjust the voltage without power-off. It adjusts the voltage by adding an on-load tap changer between the high-voltage side and the low-voltage side of the transformer. The fully sealed corrugated oil tank is adopted, and the expansion coefficient of the corrugated sheet fully meets the requirements of transformer oil expansion and heat dissipation. 10kV on-load voltage regulating transformers are usually used in occasions where frequent voltage adjustments are required, such as substations and distribution rooms in power systems. It can improve the stability and reliability of the power system, reduce the power outage time and power loss.
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Product Parameters

Performance characteristics

1. On-load voltage regulating transformer can ensure the stability of output voltage and is not subjectInput voltageand load changes.

2. Ensure voltage quality and high power supply reliability.

On-load tap changers are usually composed of one or more movable contacts, which can be connected to the high-voltage side and the low-voltage side of the transformer in different positions, so as to change the output voltage of the transformer.

4. The transformer with voltage regulation range of 5 gears adopts horizontal vacuum arc extinguishing on-load voltage regulation switch, which is directly connected with the transformer tank cover, thus greatly reducing the volume of transformer occupied by the switch body. The transformer with a voltage regulation range of 9 gears adopts a cylindrical vertical on-load voltage regulation switch, which is generally installed on the side of the oil tank and has an independent oil chamber, which can realize more gear regulation and expand the voltage regulation range of the transformer.

5. It can realize automatic, manual and wireless adjustment, and truly realize automatic intelligent adjustment.

6. Reduce equipment investment and maintenance costs, high insulation performance, strong overload capacity.

 

 

Technical parameters

 

Transformer model

Capacity

HV kV

High voltage tap range
％

Low pressure
kV

Linkage

Group Label

Core Material

Rated frequency Hz

Phase number

Cooling mode

Insulation heat resistance grade

SZ11-M
SZ13-M
SZ13-M-NX3
SZ20-M

SZ20-M-NX2
SZ22-M
SZ22-M-NX1

315`2500

6
6.3
10
10.5

± 2 × 2.5
± 4 × 2.5

0.4

Dyn11

cold rolled grain oriented silicon steel

50

3

ONAN

A

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