Product definition and process characteristics

This series of products is a high-efficiency and energy-saving power equipment with epoxy resin as the insulating medium and cured by vacuum casting process. By pouring the high and low voltage windings into a dense overall structure, the problem of the traditional transformer insulation being susceptible to moisture and aging is completely solved.

In order to meet the diverse industrial and civil needs, our Epoxy Resin Transformers cover a variety of mature structural forms:

Winding structure: classic craftsmanship and strong adaptability.
Resin and quartz sand filling pouring type: high filling degree, excellent mechanical strength.
Glass fiber reinforced thin insulation structure: light weight, excellent heat dissipation performance.
Multi-strand glass wire impregnated with epoxy resin winding standard: both flexibility and overall strength.

Core technical advantages

Energy Saving and environmental protection, economical operation

Low-loss design: no-load loss is reduced by up to 25% compared with the national standard, which significantly reduces long-term operating electricity bills.

Silent operation: optimize the electromagnetic design, and control the operating noise to 52dB and below to meet the environmental protection requirements of urban central areas and high-end commercial places.

Reliable insulation and long life

High-quality conductors: high- and low-voltage windings are wound with high-precision copper strips (copper foil) to ensure conductive efficiency and mechanical stability.

Overall curing: Vacuum epoxy pouring forms a glass fiber reinforced whole to eliminate hidden dangers of internal discharge.

Temperature resistance level: Standard F-class/H-class insulation system, strong heat resistance, and design service life far exceeds conventional equipment.

rugged and maintenance-free

Strong short-circuit resistance: The overall pouring structure is not easy to deform when subjected to a sudden short circuit, and has excellent impact resistance.

Moisture-proof and anti-fouling: The fully enclosed structure effectively blocks moisture and dust, especially suitable for underground facilities and coastal high-humidity environments, and the maintenance cost of the whole life cycle is extremely low.

Overload capacity, flexible adaptation

Dual-mode cooling: support natural air cooling (AN) and forced air cooling (AF).

Capacity auto-coupling: In the forced air-cooled mode, the equipment capacity can be increased by 50%, which is perfectly adapted to intermittent overload or emergency load requirements.

Typical application scenarios and selection recommendations

Provide differentiated customized solutions for the different installation environments and load characteristics of Epoxy Resin Transformers:

Application Scenario	Recommended Protection Level	Technical Features	Applicable Case
General Indoor Environment	IP 20	Prevent the invasion of solid foreign objects and small animals with a diameter of >12mm.	Commercial office buildings, standard factrories, indoor substations.
Outdoor open-air Environment	IP23 and above	On the basis of IP20, it prevents water from draining within the 60° angle range of the vertical line.	Outdoor box-type substations and open-air power distribution facilities.
Special and complex working conditions	Customized solution	Optional Dyn11 connection group (anti-harmonic), IP67 high protection, etc.	Precision electronics workshop, port terminal, data center.

Special note

For frequency conversion equipment sites with high-order harmonics or outdoor projects with harsh environments, it is recommended to choose the Dyn11 coupling group to improve the voltage waveform and match the corresponding high-protection shell to ensure the stability and safety of system operation.

shanghai

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Model Number	Rated Volume Quantity (KVA)	Voltage Combination (KV)			No-load Loss (W)	Load Loss (W)	No-load Electricity (%)	Short Circuit Resistance (%)
Model Number	Rated Volume Quantity (KVA)	High Voltage	High Voltage Tap Range	Low Voltage	No-load Loss (W)	Load Loss (W)	No-load Electricity (%)	Short Circuit Resistance (%)
S22-630	630	35	±5% or ±2×2.5%	3.15 6.3 10.5	470	5660	0.65	6.5
S22-800	800				560	6770	0.65	6.5
S22-1000	1000				660	8280	0.65	6.5
S22-1250	1250				790	10010	0.55	6.5
S22-1600	1600				950	11950	0.45	6.5
S22-2000	2000				1230	13180	0.45	6.5
S22-2500	2500				1450	14110	0.45	6.5
S22-3150	3150	35 38.5	±5% or ±2×2.5%	3.15 6.3 10.5	1730	16560	0.45	7
S22-4000	4000				2050	19660	0.45	7
S22-5000	5000				2450	22540	0.45	7
S22-6300	6300				2970	25200	0.45	8
S22-8000	8000	35 38.5	±5% or ±2×2.5%	3.15 3.3 6.3 6.6 10.5	4090	27650	0.35	8
S22-10000	10000				4930	32620	0.35	8
S22-12500	12500				5670	38740	0.30	8
S22-16000	16000				6860	47380	0.30	8
S22-20000	20000				8160	57240	0.30	8
S22-25000	25000				9640	67680	0.25	10
S22-31500	31500				11460	80640	0.25	10