SC(B)13 Series Three-Phase Resin-Insulated Dry-Type Power Transformer (10 kV Class)

This product is the SCB13 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, controllable 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 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. Thanks to these outstanding characteristics, our dry‑type transformers are widely deployed 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.

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Dry-type transformer series

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Product Description

　　Product Overview

　　This product is the SCB13 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—ensuring 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 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.

　　Terms of Use

　　1. Ambient temperature: -50°C to ±50°C.

　　2. Altitude: ≤1000 m.

　　3. Any other matters not covered by these technical specifications shall be resolved through consultation between the user and the Technical Department, with such arrangements to be specified at the time of order placement.

　　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 Specifications

Rated Capacity (kVA)	No-load Electric current (%)	No-load Loss (W)	Load loss at different insulation thermal classes, W			Short-circuit impedance (%)
Rated Capacity (kVA)	No-load Electric current (%)	No-load Loss (W)	B (100℃)	F (120℃)	H (145℃)	Short-circuit impedance (%)
30	2.0	135	605	640	685	4.0
50	2.0	195	845	900	965
80	1.5	265	1 160	1 240	1 330
100	1.5	290	1 330	1 415	1 520
125	1.3	340	1 565	1 665	1 780
160	1.3	385	1 800	1 915	2 050
200	1.1	445	2 135	2 275	2 440
250	1.1	515	2 330	2 485	2 665
315	1.0	635	2 945	3 125	3 355
400	1.0	705	3 375	3 591	3 850
500	1.0	835	4 130	4 390	4 705
630	0.85	965	4 975	5 290	5 660
630	0.85	935	5 050	5 365	5 760	6.0
800	0.85	1 095	5 895	6 265	6 715
1000	0.85	1 275	6 885	7 315	7 885
1250	0.85	1 505	8 190	8 720	9 335
1600	0.85	1 765	9 945	10 555	11 320
2000	0.70	2 195	12 240	13 005	14 005
2500	0.70	2 590	14 535	15 455	16 605
1600	0.85	1 765	11 050	11 660	12 510	8.0
2000	0.70	2 195	13 520	14 360	15 400
2500	0.70	2 590	15 980	17 000	18 260