What certifications does the transformer have?

The transformer holds ISO9001-2000, ISO9001, CCC, and CE certifications.

What is the rated voltage range?

The rated HV voltage is 11/33kV/35kV, and the rated LV voltage is 400V.

What is the transformer capacity range?

The transformer capacity ranges from 1250kVA to 31500kVA.

Reliable Oil-Immersed Transformer for Advanced Electrical Performance Solutions

Name: Reliable Oil-Immersed Transformer for Advanced Electrical Performance Solutions
Brand: Zhejiang Tianrun Electric Co., Ltd.
SKU: 2318745745

Zhejiang, ChinaZhejiang Tianrun Electric Co., Ltd.

US$5,869.00

1-9 Pieces

US$5,125.00

10+ Pieces

Product profile

Customization

Available

Application

Power, Lighting, Rectifier, Combined Transformer, Power Transformer,

Phase

Three

Model NO.

SZ13

Core

Core-type Transformer

Cooling Method

Oil-immersed Type Transformer

Winding Type

Two-winding Transformer

Certification

ISO9001-2000, ISO9001, CCC, CE

Usage

Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, on-Load Tap Changing Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Ring

Brand

Tenrony

Rated Frequency

50/60Hz

Rated Voltage/Hv

11/33kv/35kv

Rated Voltage/LV

400V

Transformer Capacity

1250-31500kVA

Connection of Transformer Winding

Ynd11

Winding

Copper

Protective Function

Outdoor IP23/Indoor IP44 Sealed Tank

Noise Level

≤ 52db/Silent Version ≤ 48db

Temperature Rise Limits

Top Oil ≤ 55K; Winding ≤ 65K

Insulation Level

Hv: Li200 AC85kv; LV: Li75 AC35kv

Total Tap Positions

17 (±8 Taps)

Short-Circuit Impedance

7% ±5%

No-Load Current

≤ 0.45%/Ultra-Low No-Load Current

No-Load Loss

3.15kw (Better Than National Grade-2)

Matched Tap Changer

Syjzz Vacuum Olt/Neutral-Point Type Syxzz

Transport Package

Wooden Case

Specification

1200*1850*2100mm

Trademark

TENRONY

Origin

China

HS Code

8504109000

Production Capacity

200/Monthly

Key features

Zero Interruption Regulation: Continuous automatic voltage regulation under full load without power interruption.

Vacuum OLTC Technology: SYJZZ vacuum on-load tap changer with 3x longer oil change intervals and no carbon contamination.

Dual Oil-Chamber Isolation: Switch oil compartment fully separated from main tank to prevent winding oil contamination.

High-Purity Copper Windings: Oxygen-free copper windings with vacuum impregnation for moisture resistance and low partial discharge.

Intelligent VQC Control: Automated tap change in 3-6 seconds with remote control and fault auto-lock functions.

Robust Safety Interlocks: Multi-layer protection against overload, over-temperature, and switching faults to prevent damage.

Company profile

Importers and ExportersFull Customization100% Finished Products InspectionR&D Capabilities

Zhejiang Tianrun Electric Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤0.17h