20kV and 30kV SC(B) series dry-type transformers

SH Power offers full life-cycle support for its transformers,covering solution design, model optimization, and on-site commissioning—all handled by our experienced technical team. We provide tailor-made solutions for various applications to ensure efficient operation and maximize energy savings.

Description

The SCB series 35kV excitation-free voltage regulating dry-type transformers manufactured by our company are products of low loss, conforming to requirements of GB/T1094.11, GB/T10228 and IEC60076.11. These products have the following characteristics:

Technical Parameters

SC(B)10 200~2500/20

Primary Voltage(kV):

20(22, 24)

Secondary Voltage(kV):

0.4

High-voltage Tapping Range(%):

±2×2.5%

Connection Symbol:

Dyn11, Yyn0

Insulation level:

L1 125 AC 50/ L1 AC3

Model	Impedance Uk(%)	No-load Loss Po(w)	Load Loss(120ºC)pk(w)	No-load Current lo(%)	Sound Pressure level Lpa(AN) dB
SC(B)10-200/20	6	655	2490	1.4	47
SC(B)10-250/20	6	775	3420	1.2	47
SC(B)10-315/20	6	870	4080	1.2	48
SC(B)10-400/20	6	1030	4840	1.0	48
SC(B)10-500/20	6	1210	5790	1.0	50
SC(B)10-630/20	6	1370	6840	0.9	50
SC(B)10-800/20	6	1570	8260	0.9	51
SC(B)10-1000/20	6	1860	9780	0.8	52
SC(B)10-1250/20	6	2140	11500	0.8	52
SC(B)10-1600/20	6	2150	13800	0.8	53
SC(B)10-2000/20	6	2190	16300	0.6	53
SC(B)10-2500/20	6	2480	19300	0.6	54

SC11 800~25000/35

Primary Voltage(kV):

35(33, 36.5, 37.5, 38.5)

Secondary Voltage(kV):

0.4, 0.48 ,0.55, 0.63, 0.69, 0.8, 1.14, 3.15, 6.0, 6.3, 10.5

High-voltage Tapping Range(%):

±2×2.5%

Connection Symbol

Yd11, YNdl1, Dyn11

Model	Impedance Uk(%)	No-load Loss Po(w)	Load Loss(120ºC)pk(w)	Sound Pressure Level Lpa(AN) dB
SC11-800/35	6	2020	9400	0.85
SC11-1000/35	6	2400	10900	0.85
SC11-1250/35	6	2810	12900	0.75
SC11-1600/35	6	3320	15400	0.75
SC11-2000/35	7	3800	18200	0.65
SC11-2500/35	7	4370	21800	0.65
SC11-3150/35	8	5425	24500	0.65
SC11-4000/35	8	6310	29400	0.6
SC11-5000/35	8	7530	34900	0.55
SC11-6300/35	8	8910	40800	0.55
SC11-8000/35	9	10100	46000	0.45
SC11-10000/35	9	11600	55500	0.45
SC11-12500/35	9	14100	64600	0.35
SC11-16000/35	9	17300	76000	0.35
SC11-20000/35	10	20660	85500	0.3
SC11-25000/35	10	24300	101000	0.3

Product functions

High performance and low losses.
Use of high-quality silicon steel plates to effectively reduce noise, magnetic flux density, and magnetostriction of the silicon plates during operation.
Optimized high-voltage coil structure with better interlayer voltage and capacity distribution, having greatly enhanced the resistance of the products to atomospheric and operating over-voltage while improving the electric field distribution to further reduce the partial discharge of the products.
Configurable temperature control system and air-cooling device which can be automatically started when the load is too high to enhance the overload capacity of the equipment.

Key Features

Comprehensive Product Range

Including oil-immersed, dry-type and packaged substation transformers to cover all voltage levels and application needs.

High Efficiency & Low Loss

Built with high-grade grain-oriented silicon steel and premium insulation systems for low no-load and load losses and outstanding energy savings.

Reliable Sealing & Insulation

Oil-immersed and packaged units offer superior moisture-proof, leak-proof and dielectric performance, guaranteeing long-term stability.

Precision Manufacturing

The entire process strictly follows national standards and ISO 9001 quality management system.

Custom Design Capability

Custom designs are available to match specific site conditions and load characteristics.

Durability & Safety

Robust construction incorporates overload and high-temperature protection functions.

Environment-Friendly

Compliant with RoHS and other environmental regulations—low noise, minimal losses.

Applications and Utility

Utility-Scale Power Generation and Transmission

Our 110kV and 220kV power transformers are widely used in power plants and transmission substations for efficient voltage transformation.

Renewable Energy Integration

We provide specialized solutions, including inverter and step-up integrated transformers, for renewable energy projects like solar farms and wind power plants.

Industrial and Commercial Distribution

Our dry-type and pad-mounted transformers are perfect for industrial facilities, commercial complexes, data centers, and high-rise buildings, providing safe and reliable power distribution.

Public and Residential Infrastructure

Our distribution transformers, including pole-mounted and pad-mounted types, are essential for urban and rural power grids, delivering electricity to homes and public facilities.