SCB10 and SCB11 Epoxy-resin Cast Dry-type Transformers
Category:
Keywords: Electrical Equipment
- Description
SCB10 and SCB11 Epoxy-resin Cast Dry-type Transformers
-
- Commodity name: SCB10 and SCB11 Epoxy-resin Cast Dry-type Transformers
This product has a wide range of applications and is particularly well suited for use in environments with stringent fire safety requirements, such as mines, oil fields, subways, power plants, schools, hospitals, commercial centers, high-rise buildings, and all indoor installation systems.
Overview
This product has a wide range of applications and is particularly well suited for use in environments with stringent fire safety requirements, such as mines, oil fields, subways, power plants, schools, hospitals, commercial centers, high-rise buildings, and all indoor installation systems.
Model Meaning
Working Conditions
◆ Installation altitude: not exceeding 1,000 m above sea level;
◆ Power supply voltage waveform: approximately sinusoidal;
◆ Symmetry of multiphase supply voltages: The supply voltages connected to a multiphase transformer should be approximately symmetrical.
◆ Ambient temperature: maximum daily average temperature +30°C; maximum annual average temperature +20°C; minimum temperature -30°C (applicable to indoor-type transformers).Structural Features
1. Core
◆ The core is made of high-permeability, high-quality grain-oriented cold-rolled silicon steel sheets with a 45° fully skewed lap joint. It features a special square-tube tension-plate structure, with the core limbs strapped using insulating tape. The core surface is coated with a special resin to provide moisture and rust resistance, effectively reducing no-load losses, no-load current, and core noise.
◆ Safe, flame-retardant and fire-resistant, non-polluting, and can be installed directly at the load center.
◆ Maintenance-free, easy to install, and low total operating costs.
◆ Excellent moisture resistance: can operate normally at 100% relative humidity and can be put back into service immediately after shutdown without prior drying.
◆ Low losses, low partial discharge levels, low noise, and excellent heat dissipation, coupled with a comprehensive temperature protection and control system, provide reliable assurance for the safe operation of the transformer.
◆ High reliability. According to operational studies of products already in service, their reliability metrics have reached internationally advanced levels.2. Foil Wound Coil
The low-voltage winding is manufactured using a single continuous copper foil, together with Class F turn-to-turn insulation, on a dedicated low-voltage foil winding machine. The foil-type winding effectively addresses the major challenges associated with low-voltage, high-current windings, such as excessive short-circuit stress, unbalanced ampere-turns, poor heat dissipation, the presence of winding helix angles, and inconsistent quality due to manual soldering. In addition, our company impregnates and cures the winding ends with resin to provide moisture and contamination protection.3. Temperature Control Device
The transformer is equipped with BWDK-series signal thermometers, with temperature-sensing elements embedded in the upper half of the low-voltage winding, enabling automatic monitoring and cyclic display of the operating temperature of each of the three-phase windings. In addition, the system features over-temperature alarm and trip functions.Main Technical Parameters
Rated Capacity (kVA) High voltage (kV) High-voltage tap range (%) Low voltage (kV) Connection Group Designation No-load loss (kW) Load Loss (kW) No-load current (%) Short-circuit impedance (%) Oil weight (kg) Total weight (kg) 30 6
6.3
6.6
10
10.5
11
±5%
±2×2.5%
0.4 Yyn0
Dyn11
0.71 0.19 1.6 4 250 320 50 1 0.27 1.4 4 370 460 63 1.38 0.37 1.2 4 460 550 80 1.57 0.4 1.1 4 490 580 100 1.85 0.47 1 4 570 680 125 2.13 0.54 1 4 640 750 160 2.52 0.62 0.9 4 775 890 200 2.75 0.72 0.8 4 895 1030 250 3.47 0.88 0.8 4 1100 1250 315 3.99 0.98 0.7 4 1200 1350 400 4.88 1.16 0.7 4 1460 1610 500 5.87 1.34 0.6 4 1680 1840 630 5.96 1.3 0.6 6 1800 1980 800 6.95 1.52 0.5 6 2130 2310 1000 8.13 1.77 0.45 6 2520 2720 1250 9.69 2.09 0.45 6 3075 3300 1600 11.73 2.45 0.45 6 3670 3900 2000 14.45 3.32 0.4 6 4420 4670 2500 17.17 4 0.4 6 5310 5580
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Henan Jinyu Electric Co., Ltd.
Service Hotline:400-688-0375
Tel:+86-18103909516
Email:hnjydq1999@126.com
Address: South Section of Chuangye Road, Ji County Industrial Cluster, Henan Province, Central Plains Electric City
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