20kV Dry-Type Transformer

  • Home
  • 20kV Dry-Type Transformer
Models in This Category
Brochures
20kV Dry-Type Transformer

20kV Dry-Type Transformer

20kV cast-resin dry-type transformer for projects requiring low maintenance and indoor safety.

Quick Specifications

Power Rating

50-2500 kVA

Voltage Class

20kV / 22kV / 24kV / 0.4kV / 0.415kV / 0.433kV

Insulation

Cast Resin

Installation

Indoor

Product Overview

This series of dry-type transformers with fillers and thin insulation uses epoxy resin encapsulated coils, making the transformers flame-retardant, fireproof, explosion-proof, maintenance-free, pollution-free, and compact enough for direct installation in the load center.

Meanwhile, the scientific and reasonable design and pouring process give the product lower partial discharge, lower noise, and stronger heat dissipation capacity. Under forced air cooling conditions, it can operate continuously at 140% of the rated load for a long time and can be equipped with an intelligent temperature controller for centralized monitoring and control.

The foil-type coil can solve problems such as high short-circuit stress in low-voltage and large-current windings, unbalanced ampere-turns, poor heat dissipation effect, large winding helix angle, and unstable manual welding quality.

At the same time, the winding ends adopt resin sealing, curing, moisture-proof, and anti-fouling measures, and the copper busbars are automatically welded by argon arc welding.

Applicable Standards

  • GB 1094-2013 Power Transformer
  • GB/T 2900.95 Electrical Terms: Transformers, Voltage Regulators and Reactors
  • GB/T 10228 Technical Parameters and Requirements of Dry Type Power Transformers
  • GB 20052-2020 Power Transformer Energy Efficiency Limit Value and Energy Efficiency Grade
  • IEC 60076 Power Transformer

Normal Service Conditions

  • Installation altitude below 1000 meters.
  • Highest ambient temperature: +40 degrees Celsius.
  • Highest daily average temperature: +20 degrees Celsius.
  • Lowest outdoor temperature: -20 degrees Celsius.

Performance Parameters

SCB10 Series Technical Parameter Table

Rated Capacity (kVA) Voltage Group Vector Group Impedance Voltage (%) No-Load Loss (W) Load Loss F/120C (W) Load Loss H/145C (W) No-Load Current (%) Dimensions (mm) Weight (kg)
HV (kV) Tap Range LV (kV) L W H
50 20
22
24 		±2x2.5%

±5% 		0.4
0.415
0.433 		Yyn0

Dyn11 		6.0 340 1230 1310 2.0 750 600 800 520
100 540 1990 2130 1.8 950 700 840 750
160 670 2470 2640 1.5 1000 950 760 870
200 730 2940 3140 1.5 1100 950 820 900
250 840 3420 3660 1.3 1230 950 1450 1250
315 970 4080 4360 1.3 1260 1000 1500 1420
400 1150 4840 5180 1.1 1340 1050 1650 1820
500 1350 5790 6190 1.1 1400 1150 1650 2180
630 1530 6840 7320 1.0 1410 1150 1650 2380
800 1750 8260 8840 1.0 1470 1250 1750 2640
1000 2070 9780 10400 0.85 1530 1300 1750 3010
1250 2380 11500 12300 0.85 1580 1300 1850 3650
1600 2750 13800 14800 0.85 1680 1400 1850 4450
2000 3240 16300 17500 0.7 1770 1450 2050 5630
2500 3870 19300 20700 0.7 1850 1450 2150 6610

FAQ

Of course. This product covers the voltage class commonly used in Asian markets. Its highest voltage class is 24 kV, so 22 kV is fully within the supported range. We can absolutely manufacture a 22 kV / 0.433 kV version for your project.

Related Models in Dry-Type Transformers

Back to Dry-Type Transformers or contact us for datasheets and quotations.