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Three-dimensional transformer with wound core

S13-M.RL three-dimensional transformer with wound core breaks through the traditional planar structure, and three-phase symmetrical three-dimensional structure is adopted. There is no air gap in the magnetic circuit, winding is closer, the magnetic direction of the silicon steel strip is completely consistent, three core columns are arranged in the shape of equilateral triangle, the length o three magnetic circuits is consistent and short, and there is no waste material for processing; therefore, it is a high-efficient energy-saving transformer using traditional material but realizing lower noise and compact structure. Outstanding performance in loss reduction and material saving completely conforms to energy saving guideline of our country, and it is widely applied in the high-rise building, commercial center, airport, tunnel, chemical factory, nuclear power station, ship and other important or special environment.

Technical parameters
Product advantage
Product features

Capacity and performance parameters of S13-M.RL series three-dimensional transformer with wound core

Rated capacity (kVA)	Voltage combination			Connection unit symbol	Loss		No-load current (％)	Short-circuit impedance (％)
Rated capacity (kVA)	Primary voltage (kV)	Primary voltage tapping range (%)	Secondary voltage (kV)	Connection unit symbol	No load W	Load W	No-load current (％)	Short-circuit impedance (％)
50	10	±2×2.5	0.4	Dyn11	100	910	0.24	4
100					150	1580	0.21	4
200					240	2730	0.18	4
400					410	4520	0.18	4

1. Low noise: compact design structure, application of new material and new process, noise reduction, no oil conservator, height lower than that of like products. Oil change is not required within the normal life, which improves safety and reliability of power grid operation.

2. Vacuum oil filling process is adopted for transformer packaging, which completely removes dampness in the transformer oil tank. The transformer is not in contact with air after sealing, which effectively prevents oxygen and moisture from entering the transformer, leading to decline in insulation property (insulation material and oil aging). Therefore, oil sample test shall be conducted irregularly.

3. Reliable long service life: the bolted connecting structure is adopted for the fully sealed box cover and box edge, so as to isolate contact between oil and air. Insulation will not be affected with damp, which greatly reduces insulation aging speed, and improve service life.

4. Small volume and artistic outline. The corrugated plate radiating fin is adopted for the oil tank. In case of any change in the oil temperature, changes in oil volume shall be adjusted through elastic expansion and contraction of the corrugated plate for compensation. The corrugated tank has artistic outline, small volume and small floor area.

5. Lifting center free: the user is not required to check the lifting center before operation of the fully sealed transformer, and the user can save the expense for lifting center inspection.

6. Maintenance-free: maintenance is not required.

Serial No.	Model	L × W × H (mm)	Total weight (kg)	Gauge
Serial No.	Model	L × W × H (mm)	Total weight (kg)	Longitudinal	Lateral
1	S13-M.RL-50	880×770×1050	385	400/500	400
2	S13-M.RL-100	950×850×1160	550	450	400
3	S13-M.RL-200	1150×1000×1150	865	550	550
4	S13-M.RL-400	1390×1210×1350	1410	660	750

In case of any change in the external dimensions and weight provided in the instructions due to technical improvement,

the actual product shall prevail.

1. Low loss

According to the current international GB/T6451-1999 Specification and Technical Requirements for Oil-immersd Power Transformers, the no-load loss of S13-M.RL series with capacity of 30-1600kVA is reduced by 50% at average, and the load loss is reduced by 30% at average.

2. Low no-load current

The no-load current is significantly reduced due to excellent wound core material and winding processing. According to current national standard GB/T6451-1999, the no-load current of S13-M.RL series is reduced by 75% at average.

3. Low operatin noise

According to JB/T10088-1999 noise standards, the noise of S13-M.RL series is reduced by about 7-9dB.

4. Strong anti-short circuit ability

The transformer body has the three-dimensional triangular prism shape, the tensile rod is arranged at the surrounding and in the middle, and it is integrated with the upper and lower iron yoke insulation and laminated wood, which can effectively withstand the axial and radial mechanical stress in case of sudden short circuit.