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SCBH19-100/10-NX1 Three-Phase Two-Winding Dry-Type Off-Circuit Tap-Changer Distribution Transformer

10kV Dry-Type Amorphous Alloy Distribution Transformer Series

SCBH19-100/10-NX1 Three-Phase Two-Winding Dry-Type Off-Circuit Tap-Changer Distribution Transformer

The SCBH19-100/10-NX1 is a three-phase, two-winding dry-type distribution transformer with epoxy resin casting, an amorphous alloy core, and an off-circuit tap changer, rated at 100kVA and 10kV on the high-voltage side. Designed to meet Class 1 energy efficiency (NX1) under GB 20052-2024, its amorphous alloy core significantly reduces no-load loss compared with conventional silicon steel transformers. The transformer features vacuum-cast epoxy resin insulation, providing excellent flame retardancy, moisture resistance, and maintenance-free operation. The amorphous alloy core is made of high-quality ultra-thin alloy strips, and low-voltage windings use copper foil conductors, ensuring low partial discharge, low temperature rise, and strong short-circuit withstand capability. Typical applications include commercial buildings, hospitals, airports, metro stations, data centers, and other indoor locations where fire safety and high energy efficiency are essential.
  • Rated Capacity: 100 kVA
  • Rated Voltage Ratio: 10/0.4 kV
  • Connection Group: Dyn11
  • Cooling Method: AN
  • Energy Efficiency Class: NX1
  • Standard:IEC 60076, GB/T 22072-2018

Product Details

Learn more about our products

Product Model SCBH19-100/10-NX1
No-Load Loss ≤0.09 kW
Rated Capacity 100 kVA
No-Load Current ≤0.5%
Phase 3-phase
Load Loss (120°C) ≤1.415 kW
Rated Voltage Ratio 10/0.4 kV
Short-Circuit Impedance 4%
HV Tapping Range ±5%
Temperature Rise Limit Winding ≤100K (F-class)
Rated Frequency 50 Hz
Noise (Sound Pressure Level) ≤46 dB(A)
Connection Group Dyn11
Protection Degree IP20 (IP23 available)
Cooling Method AN
Standard IEC 60076, GB/T 22072-2018
Insulation Class F (155°C), LI75 AC28 / AC5
Energy Efficiency Class NX1
01.

Core advantages

Class 1 Energy Efficiency (NX1)
Complies with GB 20052-2024 Class 1 energy efficiency standard. The amorphous alloy core reduces no-load loss by approximately 60–80% compared with conventional silicon steel transformers, delivering significant energy savings over the transformer's service life, especially for continuous light-load applications such as data centers and commercial buildings. Actual measured losses are typically lower than reference values, and detailed test data can be provided upon request.
Vacuum-Cast Epoxy Resin
High and low voltage windings are fully impregnated in F-class epoxy resin under vacuum conditions, providing excellent flame retardancy, moisture resistance, and pollution resistance. The transformer is maintenance-free and suitable for indoor installation, including basements, tunnels, and other enclosed spaces.
Low Partial Discharge & Strong Short-Circuit Withstand
Optimized insulation structure and copper foil low-voltage windings ensure low partial discharge and strong short-circuit withstand capability. The transformer maintains stable operation under continuous load with a long service life. Amorphous alloy cores also offer excellent resistance to harmonic loads, making them suitable for renewable energy and variable-frequency drive applications.
02.

Application scenarios

No data was found
01.

Authoritative Certification

CE
Our transformers are CE certified, ensuring full compliance with EU safety, health, and environmental standards.
UL
Our transformers are UL certified, confirming they meet rigorous ANSI/IEEE safety standards for North American market entry.
ASTA
Our transformers have obtained ASTA type-test certification, verifying IEC 60076 compliance.
EAC
Our transformers are EAC certified, ensuring compliance with safety and EMC regulations for the Eurasian market.
SASO
We provide SASO-compliant transformers and assist clients in obtaining the Batch Certificate of Conformity (CoC) through the SABER platform.
02.

Quality Assurance

Partner Factory Audit
Regular on-site audits of partner factories to verify ISO, CE, and UL certifications.
Full-Process Quality Control
From raw material inspection to pre-shipment final inspection, every unit is checked against specifications.
Comprehensive Test Reports
Each transformer includes a detailed factory test report. 100% full inspection before dispatch.
Third-Party Inspection Support
SGS, BV, or other accredited third-party inspection available upon customer request.
01.

Technical Documents

No data was found
02.

Certification Materials

No data was found

10kV Dry-Type Amorphous Alloy Distribution Transformer Series – Full Specifications

10kV, 3-phase, 2-winding, dry-type, amorphous alloy core, off-circuit tap-changer, distribution transformer, 30-2500kVA

ModelRated Capacity
(kVA)
HV (kV)HV Tapping
Range
LV (kV)Vector GroupNo-Load Loss
(kW)
Load Loss (kW)Impedance
Voltage (%)
B(100℃)F(120℃)H(145℃)
SCBH15-30/10-NX33010,10.5,11±5%0.4Dyn110.0700.6700.7100.7604
SCBH17-30/10-NX23010,10.5,11±5%0.4Dyn110.0600.6050.6400.6854
SCBH19-30/10-NX13010,10.5,11±5%0.4Dyn110.0500.6050.6400.6854
SCBH15-50/10-NX35010,10.5,11±5%0.4Dyn110.0900.9401.0001.0704
SCBH17-50/10-NX25010,10.5,11±5%0.4Dyn110.0750.8450.9000.9654
SCBH19-50/10-NX15010,10.5,11±5%0.4Dyn110.0600.8450.9000.9654
SCBH15-80/10-NX38010,10.5,11±5%0.4Dyn110.1201.2901.3801.4804
SCBH17-80/10-NX28010,10.5,11±5%0.4Dyn110.1001.1601.2401.3304
SCBH19-80/10-NX18010,10.5,11±5%0.4Dyn110.0851.1601.2401.3304
SCBH15-100/10-NX310010,10.5,11±5%0.4Dyn110.1301.4801.5701.6904
SCBH17-100/10-NX210010,10.5,11±5%0.4Dyn110.1101.3301.4151.5204
SCBH19-100/10-NX110010,10.5,11±5%0.4Dyn110.0901.3301.4151.5204
SCBH15-125/10-NX312510,10.5,11±5%0.4Dyn110.1501.7401.8501.9804
SCBH17-125/10-NX212510,10.5,11±5%0.4Dyn110.1301.5651.6651.7804
SCBH19-125/10-NX112510,10.5,11±5%0.4Dyn110.1051.5651.6651.7804
SCBH15-160/10-NX316010,10.5,11±5%0.4Dyn110.1702.0002.1302.2804
SCBH17-160/10-NX216010,10.5,11±5%0.4Dyn110.1451.8001.9152.0504
SCBH19-160/10-NX116010,10.5,11±5%0.4Dyn110.1201.8001.9152.0504
SCBH15-200/10-NX320010,10.5,11±5%0.4Dyn110.2002.3702.5302.7104
SCBH17-200/10-NX220010,10.5,11±5%0.4Dyn110.1702.1352.2752.4404
SCBH19-200/10-NX120010,10.5,11±5%0.4Dyn110.1402.1352.2752.4404
SCBH15-250/10-NX325010,10.5,11±5%0.4Dyn110.2302.5902.7602.9604
SCBH17-250/10-NX225010,10.5,11±5%0.4Dyn110.1952.3302.4852.6654
SCBH19-250/10-NX125010,10.5,11±5%0.4Dyn110.1602.3302.4852.6654
SCBH15-315/10-NX331510,10.5,11±5%0.4Dyn110.2803.2703.4703.7304
SCBH17-315/10-NX231510,10.5,11±5%0.4Dyn110.2352.9453.1253.3554
SCBH19-315/10-NX131510,10.5,11±5%0.4Dyn110.1952.9453.1253.3554
SCBH15-400/10-NX340010,10.5,11±5%0.4Dyn110.3103.7503.9904.2804
SCBH17-400/10-NX240010,10.5,11±5%0.4Dyn110.2653.3753.5903.8504
SCBH19-400/10-NX140010,10.5,11±5%0.4Dyn110.2153.3753.5903.8504
SCBH15-500/10-NX350010,10.5,11±5%0.4Dyn110.3604.5904.8805.2304
SCBH17-500/10-NX250010,10.5,11±5%0.4Dyn110.3054.1304.3904.7054
SCBH19-500/10-NX150010,10.5,11±5%0.4Dyn110.2504.1304.3904.7054
SCBH15-630/10-NX363010,10.5,11±5%0.4Dyn110.4205.5305.8806.2904
SCBH17-630/10-NX263010,10.5,11±5%0.4Dyn110.3604.9755.2905.6604
SCBH19-630/10-NX163010,10.5,11±5%0.4Dyn110.2954.9755.2905.6604
SCBH15-630/10-NX363010,10.5,11±5%0.4Dyn110.4105.6105.9606.4006
SCBH17-630/10-NX263010,10.5,11±5%0.4Dyn110.3505.0505.3655.7606
SCBH19-630/10-NX163010,10.5,11±5%0.4Dyn110.2905.0505.3655.7606
SCBH15-800/10-NX380010,10.5,11±5%0.4Dyn110.4806.5506.9607.4606
SCBH17-800/10-NX280010,10.5,11±5%0.4Dyn110.4105.8956.2656.7156
SCBH19-800/10-NX180010,10.5,11±5%0.4Dyn110.3355.8956.2656.7156
SCBH15-1000/10-NX3100010,10.5,11±5%0.4Dyn110.5507.6508.1308.7606
SCBH17-1000/10-NX2100010,10.5,11±5%0.4Dyn110.4706.8857.3157.8856
SCBH19-1000/10-NX1100010,10.5,11±5%0.4Dyn110.3856.8857.3157.8856
SCBH15-1250/10-NX3125010,10.5,11±5%0.4Dyn110.6509.1009.69010.3706
SCBH17-1250/10-NX2125010,10.5,11±5%0.4Dyn110.5508.1908.7209.3356
SCBH19-1250/10-NX1125010,10.5,11±5%0.4Dyn110.4558.1908.7209.3356
SCBH15-1600/10-NX3160010,10.5,11±5%0.4Dyn110.76011.05011.73012.5806
SCBH17-1600/10-NX2160010,10.5,11±5%0.4Dyn110.6459.94510.55511.3206
SCBH19-1600/10-NX1160010,10.5,11±5%0.4Dyn110.5309.94510.55511.3206
SCBH15-2000/10-NX3200010,10.5,11±5%0.4Dyn111.00013.60014.45015.5606
SCBH17-2000/10-NX2200010,10.5,11±5%0.4Dyn110.85012.24013.00514.0056
SCBH19-2000/10-NX1200010,10.5,11±5%0.4Dyn110.70012.24013.00514.0056
SCBH15-2500/10-NX3250010,10.5,11±5%0.4Dyn111.20016.15017.17017.4506
SCBH17-2500/10-NX2250010,10.5,11±5%0.4Dyn111.02014.53515.44516.6056
SCBH19-2500/10-NX1250010,10.5,11±5%0.4Dyn110.84014.53515.44516.6056
Note:
1.Tapping range options: ±5% or ±2×2.5%. ±5% is shown as default in this table. Other tapping ranges are available upon request.
2.Other high and low voltages are available upon request.
3.Vector group options: Dyn11 . Other vector groups are available upon request.
4.Insulation class: B/F/H available. Load losses are shown for reference temperatures of 100°C (Class B), 120°C (Class F), and 145°C (Class H) respectively.
5.6kV amorphous alloy dry-type transformers are available upon request. Please contact us for project-specific solutions.
6.For IEC, ANSI, or other standards, or special frequency requirements, please contact us for a customized datasheet.

* For specific product requests, please Contact Us for customized solutions to your needs.

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