6-24KV Oil-immersed Transformer

Overview

Chuanli is a professional oil immersed transformer manufacturer supplying S13, S20, S22 series fully-sealed distribution transformers for 6kV-24kV power systems. S13/S20/S22 series fully sealed oil-immersed transformers are suitable for power systems with AC 50Hz and rated working voltage of 20kV and below, as the power distribution of petroleum, metallurgy, chemical, textile, light industry and other enterprises and places with heavy dust transformer. Get a transformer quotation today.

Model Meaning

Transformer Standards & Certifications

Our oil immersed transformers comply with international and national standards:

GB1094.1-1996 GB 1094.2-1996 JB/T10088-2004

GB1094.3-2003 GB 1094.5-2003 GB/T10237-1988

GB/T6451-1999 GB/T 7595-1987 JB/T3837-1998

Technical Operating Conditions

Ambient temperature: Maximum +40℃ , Minimum -25℃ (outdoor type) / -5℃ (indoor type).

Altitude: Installation site altitude should not exceed 1000 meters.

Relative humidity: Daily average ≤ 95%, Monthly average ≤ 90%.

Seismic intensity: Not exceeding 8 degrees.

Installation environment: No fire, explosion hazards, severe pollution, chemical corrosion, or intense vibrations.

Cooling method: ONAN (Oil Natural Air Natural) or ONAF (Oil Natural Air Forced).

Frequency: Rated frequency 50Hz or 60Hz.

Rated voltage: Should match the system voltage level, typically 6kV, 10kV, 20kV, 35kV, etc.

Key Features of Our Oil Immersed Transformers

● Core: Core is made of high permeability grain oriented cold-rolled silicon steel. The core of the new core, miter joints convolution type iron core, its legs of circular cross section multi-step, the yoke and the core of constant section.

● Winding: Windings corrugated oil passage, not dipping process, tightening belt lashing; concentric coil windings are: high voltage winding has a corresponding tap tap voltage requirements, lead to a tap on the switch, the switch is mounted on the cover, and the need to cut After the power supply before converting voltage tap.

● Security devices:30~2000kVA transformer equipped with a pressure release valve; Can be installed with alarm and trip relays gas terminals according to user needs;

● Oil temperature measurement device:Headers transformers are equipped with a glass thermometer, tube socket located on the top of the tank, inserted into the oil 120±10mm; 1000~2000kVA transformer type equipped with outdoor thermometer signal;

● Transformer tank: The transformer tank is made up of corrugated walls. The surface is dust-sprayed and the paint film is firm. The corrugated fins not only have a cooling function, but also have a “breathing” function. The elasticity of the corrugated fins can compensate for the change in the volume of the transformer oil caused by the temperature rise and fall. Therefore, the fully sealed transformer has no oil storage cabinet, which reduces the overall height of the transformer;

● The transformer is vacuum-filled during packaging, completely removing the moisture in the transformer, and the transformer oil is not in contact with the air. Effectively prevent oxygen and moisture from intruding into the transformer, resulting in a decrease in the insulation performance of the transformer and the possibility of aging of the transformer oil, so the oil sample test is performed irregularly;

S13-M type 6~10kV Oil-immersed Distribution Transformer

Note:

1. The load loss above the slash line in the table applies to the Dyn11 connection group, and the load loss value below the slash line applies to the Yyn0 connection group.

2. Other capacity of the product performance parameters, determined by the user and the manufacturer.

S20M Oil Becomes Level 2 Energy Efficient

S22M Oil To Level 1 Energy Efficiency