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The 150kVA cast-resin dry type transformer is a dedicated medium-capacity distribution equipment. It is perfectly adapted to the power demands of small and medium-sized factories, commercial complexes, high-rise buildings, and data centers, providing stable power directly to dynamic equipment, lighting systems, and precision instruments. Utilizing a high-permeability CRGO silicon steel core and oxygen-free copper windings treated with epoxy resin vacuum casting or VPI processes, 150kva dry type transformer ensures highly efficient, flame-retardant, and zero-hazard operations.
Core Parameters:
• Energy Efficiency: Tier 1 Efficiency (Ultra-low no-load and load losses).
• Cooling Mode: AN / AF (Forced air cooling boosts capacity by 30% to 195kVA).
• Protection & Insulation: Class F/H Insulation, IP20/IP23 (Indoor), customizable IP54 (Outdoor).
Product Features
150kva dry type transformer adopts a completely oil-free design. Windings undergo epoxy resin casting or VPI impregnation, rendering them highly flame-retardant and self-extinguishing. Eradicates leakage and fire risks in populated high-rises.
150 kva dry type transformer features a mainstream Dyn11 vector group, delivering robust resistance to unbalanced loads. A stable 4%~6% short-circuit impedance safeguards downstream devices from severe current impacts.
The high-permeability silicon steel core paired with oxygen-free copper minimizes both no-load and load losses. Complies strictly with Tier 1 efficiency standards, providing substantial electricity savings over time.
Class F/H insulation effortlessly repels dust and moisture, operating steadily across -25℃ to 40℃. Comes in standard IP20/IP23 indoor enclosures with IP54 rugged outdoor options available.
Supports dual-mode Natural Air (AN) and Forced Air (AF) cooling. Activating AF mode instantly boosts capacity by ~30% to 195kVA, ideal for handling unexpected peak loads without upgrading.
Key Specifications (150kVA Dry Type Transformer)
| Parameter | Typical Value | Description |
| Rated Capacity | 150kVA (AN) / 195kVA (AF) | Provides 150kVA naturally, with a ~30% power boost under forced air cooling mode. |
| Rated Voltage | HV: 10kV | LV: 400V | Standard voltages (custom 6kV/20kV available), matching 3-phase 4-wire systems perfectly. |
| Vector Group | Dyn11 | Mainstream configuration, ensuring high stability against unbalanced electrical loads. |
| Insulation Class | Class F (155℃) / Class H (180℃) | Epoxy resin casting or VPI process guarantees top-tier thermal and electrical insulation. |
| Short-Circuit Impedance | 4% ~ 6% | Standard values that effectively resist the impact of short-circuit currents to protect the grid. |
| Efficiency Level | Tier 1 Standard | Exceptional energy-saving performance with extremely low no-load and load losses. |
| Protection Level | IP20 / IP23 (Indoor) IP54 (Outdoor Custom) | Flexible enclosure options to prevent solid object/water ingress based on installation environment. |
Detailed Description
The 150kVA cast-resin dry type transformer is a premium medium-capacity three-phase distribution equipment. It is engineered to supply reliable power for dynamic equipment and lighting systems in mid-sized factories, commercial complexes, high-rise buildings, and data centers. The 150kva dry type transformer is a prime example of such advanced power solutions. At its core, it features a high-permeability cold-rolled grain-oriented (CRGO) silicon steel core meticulously assembled with a 45° full-mitre step-lap joint, drastically reducing operating noise and no-load losses.
Its oxygen-free copper windings undergo either an epoxy resin vacuum casting or a VPI (Vacuum Pressure Impregnation) process, forming an impenetrable, solid insulation layer. This renders the unit, specifically the 150 kva dry type transformer, entirely oil-free, explosion-proof, and flame-retardant. It supports dual cooling modes: Natural Air (AN) and Forced Air (AF). When AF mode is activated, capacity safely surges to approximately 195kVA to handle short-term load peaks. Compliant with strict Tier 1 energy efficiency standards, this dry type transformer guarantees high economic returns through reduced power consumption and minimal maintenance requirements.
Standard Dry-Type Series Technical Reference
| Capacity (kVA) | Impedance (%) | No-Load Loss (W) | Load Loss (W) | Total Weight (kg) | Dimensions W×D×H (mm) |
| 100 | 4.0 | 220 | 1400 | 550 | 950×700×1000 |
| 160 | 4.0 | 280 | 1900 | 750 | 1050×750×1050 |
| 200 | 4.0 | 340 | 2300 | 880 | 1100×800×1100 |
| 250 | 4.0 | 400 | 2700 | 1050 | 1150×800×1150 |
| 315 | 4.0 | 480 | 3300 | 1250 | 1200×850×1200 |
* The table displays standard SCB technology platform parameters. 150kVA is a tailored specification falling precisely within this highly mature manufacturing range. Losses scale down further for Tier 1 efficiency models.
FAQ
Our 150kva dry type transformer suits hospitals, shopping malls and data centers. It uses epoxy resin insulation without flammable oil, featuring flame retardancy and low partial discharge for indoor power distribution projects with strict fire control standards.
The 150kva dry type transformer supports natural air cooling AN and forced air cooling AF. For long-term 70%-80% rated load operation, we recommend matching cooling fans to stabilize winding temperature and extend the transformer’s whole service cycle.
As a professional dry type transformer manufacturer, we provide custom HV/LV voltage ratios for the 150kva dry type transformer, covering 10kV/0.4kV, 20kV/400V and other global common standards to meet different regional power grid access demands.
Whatsapp: +86-13961294414
E-mail: junqiu.wang@czguanghui.cn
jocelyn.duan@czguanghui.cn
ADD: No. 1, Yulong Middle Road, Xuejia Town, Xinbei District, Changzhou City, China
Mobile: 0086-15380068868
