New Energy Efficiency SC(B) 18-NX1 (10 kV Class) Series Three-Phase Resin-Insulated Dry-Type Distribution Transformer

Product Overview This product is a new energy-efficient SC(B)18-12 series resin-insulated dry-type transformer, independently developed by our company through the introduction of advanced foreign technologies. The resin composite material employs two cutting-edge techniques—advanced mixing methods and vacuum thin-film degassing—to ensure uniform blending and eliminate air bubbles within the mixture. As a result, the product exhibits extremely low partial discharge levels, controllable below 5 pC. Both the high-voltage and low-voltage windings are cast under vacuum and pressure conditions, providing complete encapsulation while ensuring thorough impregnation between layers and turns. The resulting cast body features a dense cured structure that is flame-retardant, explosion-proof, and environmentally friendly. Equipped with an RS485 serial interface for connection to computers, this transformer enables centralized monitoring and control. Thanks to these outstanding characteristics, our dry-type transformers are widely used in critical applications such as power transmission and distribution systems—including hotels, airports, high-rise buildings, commercial centers, residential complexes—as well as in harsh environments like subways, metallurgical plants, power stations, ships, and offshore drilling platforms. Product Features 1. No-load losses are reduced by more than 20% compared to SCB11 models, delivering excellent energy-saving performance, economical operation, and maintenance-free service. 2. Noise levels are 10–15 dB lower than current industry standards. 3. Compact design ensures easy installation, eliminates the need for routine maintenance, and significantly reduces maintenance costs. 4. Advanced lamination techniques combined with vibration-damping measures minimize operational noise. 5. High-voltage windings are fully cast, while low-voltage windings adopt a foil-type construction with optimal ampere-turn distribution, enhancing short-circuit withstand capability. 6. Uniform temperature distribution and low hotspot temperatures ensure superior reliability. Ordering Notes When placing your order, please provide the following parameters: 1. Product model number 2. Rated capacity 3. Voltage configuration 4. Voltage regulation range 5. Operating frequency 6. Transformer connection group designation 7. Short-circuit impedance 8. Special technical requirements (if any). Technical Data Sheet for the New Energy-Efficient SC(B)18-NX1 Series 10 kV Three-Phase Resin-Insulated Dry-Type Distribution Transformers | Parameter | Value | |-----------|-------| | Rated Capacity (kVA) | 30, 50, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500 | | High-Voltage Rating (kV) | 6.3, 10, or higher | | Low-Voltage Rating (kV) | 0.4, 0.6, or other specified values | | Connection Group | Yyn0, Dyn11, or other standard groups | | No-Load Current (%) | Typically < 2% | | No-Load Losses (W) | Typically < 105 W at rated capacity | | Load Losses (W) | Typically < 640 W at rated capacity (at 75°C) | | Impedance Voltage (%) | Typically < 4% | | Frequency | 50 Hz or 60 Hz | Note: Additional details such as voltage regulation ranges, short-circuit impedance, and specific technical specifications can be provided upon request.

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Dry-type transformer series

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Product Description

Product Overview
This product is a new‑generation, high‑efficiency SC(B)18‑12 series resin‑insulated dry‑type transformer, independently developed by our company through the introduction of advanced foreign technologies. The resin‑based composite material is prepared using two cutting‑edge techniques—advanced overseas mixing methods and vacuum thin‑film degassing—which ensure uniform blending and the complete removal of air bubbles. The product exhibits exceptionally low partial discharge levels, reliably kept below 5 pC. Both the high‑ and low‑voltage windings are cast under vacuum and pressure, providing the resin insulation with both full encapsulation and thorough interlayer impregnation. The resulting cast body features a dense, cured structure that is flame‑retardant, explosion‑proof, and environmentally friendly. Equipped with an RS‑485 serial interface for connection to a computer, it enables centralized monitoring and control. Owing to these distinctive characteristics, our dry‑type transformers are widely employed in power transmission and distribution systems, serving critical facilities such as hotels, airports, high‑rise buildings, commercial centers, and residential complexes, as well as harsh‑environment applications including subways, metallurgical plants, power stations, ships, and offshore drilling platforms.
Product Features
1. The no-load loss of this product is more than 20% lower than that of the SCB11 model, delivering outstanding energy-saving performance, economical operation, and maintenance-free service.
2. The product’s noise level is 10–15 decibels lower than the current industry standard.
3. The transformer is compact, easy to install, maintenance-free, and incurs low maintenance costs.
4. Combines an advanced laminated design with vibration-damping measures, resulting in low noise levels.
5. The high-voltage unitary cast structure and the low-voltage foil-type design ensure excellent ampere-turn distribution and strong short-circuit withstand capability.
6. Temperature distribution is uniform, with low hotspot temperatures and high reliability.
　　Ordering Instructions
　　When placing your order, please provide the following parameters:
　　1. Product Model
　　2. Rated Capacity
　　3. Voltage Combination
　　4. Scope of Adjustment
　　5. Frequency
　　6. Connection Group Designation
　　7. Short-circuit impedance
　　8. For products with special requirements, specify the technical specifications.

Technical Data Sheet for the New Energy-Efficient SC(B)18-NX1 Series 10 kV Three-Phase Resin-Insulated Dry-Type Distribution Transformer

Rated	Rated voltage		Connection	No-load current (%)	No-load loss (W)	Load Loss (W) (75°C)	Impedance Voltage (%)

Capacity			Group

(kVA)	High voltage (kV)	Low voltage (kV)
30	6	0.4	Yyn0	2	105	640	4
50				2	155	900
	±2×2.5%		Dyn11
						870
80	or			1.5	210	1240
100				1.5	230	1415
125	6.3			1.3	270	1665
160				1.3	310	1915
200	±2×2.5%			1.1	360	2275
250				1.1	415	2485
315	or 10			1	510	3125
400				1	570	3590
500	±2×2.5%			1	670	4390
630				0.85	775	5290
630				0.85	750	5365	6
800				0.85	875	6265
1000				0.85	1020	7315
1250				0.85	1205	8720
1600				0.85	1415	10555
2000				0.7	1760	13005
2500				0.7	2080	15445