Ex-Proof Dry Type Transformer 2.5kVA 20kVA 50kVA Customization Acceptable
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Product Highlights
- Customizable Color: Available in Grey or Customizable colors to meet specific requirements.
- Amorphous Alloy Core: Utilizes amorphous alloy core technology for high efficiency and energy saving.
- Explosion Proof Design: Suitable for mines with gas, methane, and coal dust without explosion hazards.
- Vacuum Pressure Impregnation: Coils are dipped in paint by vacuum pressure equipment for moisture resistance.
- Multiple Insulation Classes: Offers F or H grade insulation materials for enhanced durability and safety.
- Flexible Voltage Adjustment: Coil taps support star or triangle connections for various voltage levels.
- Robust Steel Shell: Welded steel shell withstands hydraulic tests and meets flameproof requirements.
- Comprehensive Certifications: Certified with ISO9001, CCC, and multiple GB safety standards.
Product Attributes
- Customization
- Available
- Application
- Power, Electronic, Instrument, Lighting
- Phase
- Three
- Model NO.
- KSG
- Core
- Amorphous Alloy Transformer
- Cooling Method
- Dry-type Transformer
- Winding Type
- Two-winding Transformer
- Certification
- ISO9001-2000, ISO9001, CCC
- Usage
- Rectifier Transformer, Power Transformer, Distribution Transformer
- Frequency Characteristics
- Power Frequency
- Shape of Core
- Ring
- Brand
- Hzec
- Currency
- RMB or USD
- Language
- Chinese, English, Russian
- Loading Port
- It Depends
- Color
- Grey/Customizable
- Transport Package
- Wooden Case/Pallet
- Specification
- As required
- Trademark
- HZEC
- Origin
- China
- Production Capacity
- 5000 Sets/Month
- Package Size
- 50.00cm * 50.00cm * 75.00cm
- Package Gross Weight
- 100.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Ex-Proof Dry Type Transformer 2.5kVA 20kVA 50kVA Customization Acceptable
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Ex-Proof Dry Type Transformer 2.5kVA 20kVA 50kVA Customization Acceptable -
Ex-Proof Dry Type Transformer 2.5kVA 20kVA 50kVA Customization Acceptable -
Ex-Proof Dry Type Transformer 2.5kVA 20kVA 50kVA Customization Acceptable -
Ex-Proof Dry Type Transformer 2.5kVA 20kVA 50kVA Customization Acceptable -
Ex-Proof Dry Type Transformer 2.5kVA 20kVA 50kVA Customization Acceptable -
Ex-Proof Dry Type Transformer 2.5kVA 20kVA 50kVA Customization Acceptable -
Ex-Proof Dry Type Transformer 2.5kVA 20kVA 50kVA Customization Acceptable
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Product Description
Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.
KSG series mining dry-type transformers (hereinafter referred to as transformers) are suitable for use in mines with gas, methane, coal dust but no explosion hazard. In power supply lines with AC 50Hz/voltage below 1200V, they provide power for power equipment, coal drills, lighting and other related electrical appliances.
GB/T12173-2008; GB3836.I-2010; GB3836.2-2010; GB/T10228-2015; GB4208-2008
| Technical data |
Rated capacity (KVA) | ||||||
| 2.5 | 5(4) | 10 | 15 | 20 | 30 | 50 | |
| Phase | 3 | ||||||
| Frequency | 50 | ||||||
| Primary voltage (V) | 1140, 660, 380, 220 | ||||||
| Secondary voltage (V) | 1140, 660, 380, 220, 127, 36, 24 | ||||||
| Connection group | Yy0-D11 Dy11 Yy0 | ||||||
| Impedance voltage (%) | 3.2 | 3.5 | 3.5 | 3.5 | 4 | 4 | 4 |
| No-load current (%) | 12 | 10 | 8 | 6 | 6 | 5.5 | 4 |
| No-load loss (W) | 102 | 102 | 155 | 210 | 235 | 310 | 420 |
| On-load loass (75ºC)W | 130 | 175 | 300 | 380 | 500 | 710 | 1005 |
| Insulation class | F or H | ||||||
| Cooling method | AN | ||||||
| Rated capacity (kVA) | Weight (kg) | Size (L*B*H) | Installation size |
| KSG-2.5 | 43 | 340*330*650 | 210/145 |
| KSG-5 | 58 | 340*330*650 | 210/145 |
| KSG-10 | 80 | 420*400*680 | 210/145 |
| KSG-15 | 133 | 460*440*710 | 210/145 |
| KSG-20 | 150 | 460*440*710 | 210/145 |
| KSG-30 | 205 | 500*480*800 | 260/165 |
| KSG-50 | 260 | 500*480*800 | 260/165 |
2. Transformer shell: It is made of steel plate welding. The shell can withstand the hydraulic test of 8 Pa gas pressure; The contact surface between the box cover and the box rock meets the flameproof requirements; The box cover is made of steel plate, with cable inlet and outlet horn mouth on it, and rubber gasket is placed on the inner surface of the outlet sleeve. The cable passes through the rubber gasket. After tightening the coil, the rubber gasket can be used to press the cable to ensure sealing. The outer diameter of the selected cable should correspond to the size of the rubber gasket to ensure that the cable can be pressed and completely sealed to ensure waterproof and protective performance;
3. Voltage adjustment: The coil tap of the transformer can be connected in star connection or triangle connection. For example: 660 to 380V or 380 to 220V. When changing the connection, disconnect the transformer from the power supply, open the box cover, and replace the parallel connector on the terminal board. Dry-type transformers should be able to work normally under the following conditions:
1. Altitude not exceeding 1500m, special environment shall be explained separately;
2. Ambient temperature: maximum temperature +40P, maximum monthly average temperature +25P, minimum temperature -20P;
3. Relative humidity of air not exceeding 95% (at +259);
4. In an environment with gas or steam that does not damage insulation;
5. Installed in a place with coal dust and gas in the mine, but without explosion hazard;
6. The waveform of the power supply voltage is similar to a sine wave.
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI2491004". Items marked "
" are certified.
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Company Profile
Henan Energy Electric Equipment Co., Ltd (founded in September 2011) is a leading high-tech enterprise specializing in the research, design, manufacturing, and integrated services of power transmission and distribution equipment. With over a decade of industry expertise, we provide comprehensive energy solutions tailored to global markets, serving utilities, industries, renewable energy projects, and infrastructure development.
Core Products & Solutions
Power Transformers: Up to 500kV capacity, designed for grid stability and energy efficiency.
Distribution Transformers: Oil-immersed & dry-type (SCB/SGB), compliant with IEC, IEEE, and GB standards.
Specialty Transformers: For solar/wind farms, mining, and harsh environments.
Gas-Insulated (GIS) & Air-Insulated (AIS) Switchgear: 10kV-40.5kV, with intelligent monitoring options.
MV/LV Switchboards: Modular designs for commercial and industrial applications. Prefabricated Substations (Compact Substations)
Euro-style & American-style kiosks, integrating transformers, switchgear, and automation systems.
Customized Solutions
Smart Grid Components: IoT-enabled devices for remote monitoring and energy management.
Retrofitting & Upgrades: Modernization of aging power infrastructure.
Competitive Advantages
Technology Leadership:
R&D Center: 50+ engineers focusing on energy-saving and low-noise technologies.
Certifications: ISO9001, ISO14001, IEC, and national standards (GB/T).
Advanced Manufacturing: CNC machines, vacuum casting systems, and automated testing labs.
Quality Assurance:
100% Routine Tests: Including impulse, partial discharge, and temperature rise tests.
Traceability: Full lifecycle documentation from raw materials to delivery.
Exports: 30+ countries in Central Asia, Africa, Southeast Asia, and Latin America.
Customer-Centric Services
7× 24 Technical Support: Multilingual team for emergency response.
After-Sales: Free consultations, maintenance training, and spare parts supply.
Sustainability & Innovation
Green Products: Low-loss transformers and SF6-free switchgear.
Vision & Mission
Vision: To be a globally trusted partner in power infrastructure, driving the transition to carbon-neutral energy systems.
Mission: Deliver reliable, efficient, and intelligent solutions that empower industries and communities.
About Our Factory & Business Background
- Address
- Room 1818, Zhenghong Center, No. 126 Huayuan Road, Jinshui District, Zhengzhou, Henan, China
- Terms of Payment
- LC, T/T, D/P
- International Commercial Terms(Incoterms)
- FOB, CFR, CIF, EXW, DDP, DAP, CIP
- Average Lead Time
- Peak Season Lead Time, within 15 workdays, Off Season Lead Time, within 15 workdays
- Nearest Port
- Ningbo Port
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2024-06-25
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What is the maximum altitude for operation?
- The transformer can operate normally at altitudes not exceeding 1500m. Special environments require separate explanation.
- Is the color customizable?
- Yes, the color is customizable. Standard options include Grey, but other colors can be arranged.
- What certifications does the product have?
- The product holds ISO9001-2000, ISO9001, and CCC certifications, along with compliance with GB/T12173-2008 and GB3836 standards.
- What is the lead time for production?
- The average lead time is within 15 workdays for both peak and off-peak seasons.
- Can the transformer be used in explosive environments?
- It is suitable for mines with gas, methane, and coal dust, but only in areas without explosion hazards.
- What payment terms are accepted?
- Accepted payment terms include LC, T/T, and D/P.
- What is the cooling method used?
- The transformer uses an Air Natural (AN) cooling method.
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