22kV 1000kVA Prefabricated Compact Substation
The 22kV 1000kVA Prefabricated Compact Substation is a modern integrated power distribution solution designed for medium-voltage electrical networks requiring high operational reliability, compact installation, and efficient energy transformation. The system integrates 22kV medium-voltage switchgear, a 1000kVA distribution transformer, low-voltage distribution equipment, and intelligent control devices into a single modular enclosure, significantly reducing installation complexity and project construction time. Manufactured using high-strength corrosion-resistant materials and advanced electrical insulation technology, the compact substation is engineered for stable outdoor operation under demanding environmental conditions. Its optimized structural layout improves heat dissipation efficiency, maintenance accessibility, and operational safety while minimizing installation footprint for urban infrastructure and industrial applications. The 22kV 1000kVA compact transformer substation is widely suitable for renewable energy systems, industrial production facilities, mining operations, commercial complexes, municipal distribution networks, and smart-grid infrastructure projects. With intelligent communication capability and flexible configuration options, the substation delivers reliable, energy-efficient, and scalable medium-voltage power distribution performance.
- Primary Voltage Ratings 22kV
- Type Prefabricated Substation
- BIL 1000kVA
- Standards IEC 62271 / IEC 60076 / ANSI
- Application renewable energy plants, industrial manufacturing facilities
- Power Rating --
- Certificate UL, CESI, IEEE
- Cooling Method AN / ONAN / ONAF
- Opeartion --
Technical Specifications
Customization Optional
Packing and Shipping
Manufacturer Test
Routine Testing
Application
Technical Specifications
22kV 1000kVA Prefabricated Compact Substation
22kV 1000kVA Prefabricated Compact Substation Data Sheet
| Parameter | Specification |
| Product Type | Prefabricated Compact Substation |
| Rated High Voltage | 22kV |
| Transformer Rated Capacity | 1000kVA |
| Rated Low Voltage | 400V / 433V |
| Frequency | 50Hz / 60Hz |
| Transformer Cooling Type | ONAN |
| Transformer Technology | Oil-Immersed Hermetically Sealed |
| Vector Group | Dyn11 |
| HV Switchgear | Ring Main Unit / Vacuum Circuit Breaker |
| Rated Current | 1250A |
| Short Circuit Withstand Current | 25kA / 3s |
| Insulation Withstand Voltage | 125kV BIL |
| Protection Class | IP54 |
| Enclosure Material | Galvanized Steel / Stainless Steel |
| Surface Coating | Outdoor Anti-Corrosion Powder Coating |
| Busbar Type | Tin-Plated Copper Busbar |
| Ventilation System | Natural Ventilation with Optional Forced Cooling |
| Ambient Temperature Range | -40°C to +55°C |
| Maximum Installation Altitude | ≤ 3000m |
| Humidity Resistance | ≤ 95% RH |
| Communication Interface | Modbus / IEC 60870-5-104 |
| Smart Monitoring | Optional Remote SCADA System |
| Cable Entry Direction | Bottom / Side Entry |
| Earthing System | TN-S / TT / IT |
| Noise Level | ≤ 62dB |
| Operational Lifetime | More than 30 Years |
| Applicable Standards | IEC 62271 / IEC 60076 / ANSI |
Customization Optional
22kV 1000kVA Prefabricated Compact Substation
The 22kV 1000kVA Prefabricated Compact Substation can be extensively customized to satisfy different utility requirements, industrial operating conditions, and regional grid standards. Customers may select energy-efficient transformer technologies including sealed oil-immersed transformers, environmentally friendly ester-oil transformers, or cast resin dry-type transformers according to installation environment and energy management objectives. Medium-voltage compartments can be configured with ring main units, vacuum circuit breakers, SF6 insulated switchgear, or load break switch assemblies to support diverse network protection schemes and operational requirements. The low-voltage section may additionally integrate automatic transfer systems, intelligent metering units, harmonic suppression equipment, reactive power compensation systems, and digital protection relays for advanced power quality management.
The enclosure structure and internal configuration can also be optimized for harsh environmental applications such as coastal regions, mining operations, high-humidity tropical zones, desert climates, or heavy industrial pollution areas. Optional features include anti-condensation heaters, thermal insulation systems, intelligent ventilation control, fire suppression devices, arc fault protection systems, internal maintenance lighting, and remote monitoring modules. Customers may further customize enclosure dimensions, cable routing methods, ventilation openings, paint colors, company logos, maintenance access layouts, and renewable energy integration interfaces to improve operational efficiency and simplify installation. These flexible customization capabilities allow the compact substation to fully adapt to modern industrial, commercial, and utility power distribution projects.
Packing and Shipping
22kV 1000kVA Prefabricated Compact Substation
The 22kV 1000kVA Prefabricated Compact Substation is packaged using industrial heavy-duty export protection methods to ensure safe transportation, secure storage, and reliable international delivery. Prior to packaging, the complete substation undergoes detailed mechanical inspection, coating verification, enclosure sealing inspection, and anti-corrosion treatment to minimize transportation damage and environmental exposure risks. Electrical devices including protection relays, communication systems, monitoring modules, and meters are additionally secured using vibration-resistant and moisture-proof protective materials.
The transformer chamber, medium-voltage switchgear section, and low-voltage distribution compartment are internally reinforced using steel support structures and transportation locking systems to prevent movement during road, railway, or container shipment. External surfaces are wrapped with industrial waterproof protective film, anti-scratch covers, reinforced edge guards, and impact-resistant fastening systems to maintain structural integrity during long-distance transportation operations. Integrated lifting lugs and forklift access channels simplify loading and unloading procedures at logistics terminals and project installation sites.
Depending on project dimensions and shipping requirements, the compact substation may be transported using skid-mounted structures, steel-frame export packaging, fumigation-free wooden crates, or direct container fastening methods compliant with international transportation regulations. Additional anti-condensation systems, anti-vibration reinforcement measures, and marine-grade corrosion protection solutions are available for projects located in coastal areas, desert regions, mining sites, or remote installation environments requiring extended transportation durations.
Shipping documentation typically includes factory inspection reports, operation manuals, packing lists, electrical schematics, wiring diagrams, quality certificates, and export compliance documents. Customers may additionally request multilingual labels, customized shipping marks, installation guidance manuals, and project-specific logistics coordination services. The complete packing and shipping process is designed to preserve equipment quality, reduce transportation risks, and ensure safe delivery to the final installation destination.
The transformer chamber, medium-voltage switchgear section, and low-voltage distribution compartment are internally reinforced using steel support structures and transportation locking systems to prevent movement during road, railway, or container shipment. External surfaces are wrapped with industrial waterproof protective film, anti-scratch covers, reinforced edge guards, and impact-resistant fastening systems to maintain structural integrity during long-distance transportation operations. Integrated lifting lugs and forklift access channels simplify loading and unloading procedures at logistics terminals and project installation sites.
Depending on project dimensions and shipping requirements, the compact substation may be transported using skid-mounted structures, steel-frame export packaging, fumigation-free wooden crates, or direct container fastening methods compliant with international transportation regulations. Additional anti-condensation systems, anti-vibration reinforcement measures, and marine-grade corrosion protection solutions are available for projects located in coastal areas, desert regions, mining sites, or remote installation environments requiring extended transportation durations.
Shipping documentation typically includes factory inspection reports, operation manuals, packing lists, electrical schematics, wiring diagrams, quality certificates, and export compliance documents. Customers may additionally request multilingual labels, customized shipping marks, installation guidance manuals, and project-specific logistics coordination services. The complete packing and shipping process is designed to preserve equipment quality, reduce transportation risks, and ensure safe delivery to the final installation destination.
32
32 years of industry experience
Manufacturer Test
22kV 1000kVA Prefabricated Compact Substation
Progress Test
The manufacturing progress testing procedure for the 22kV 1000kVA Prefabricated Compact Substation is implemented throughout all major production stages to ensure structural quality, electrical reliability, and operational safety. Initial inspections focus on raw material verification including steel thickness measurement, insulation material testing, copper busbar conductivity analysis, and anti-corrosion coating inspection to confirm compliance with engineering specifications and international manufacturing standards. After intermediate production inspections are completed, quality engineers conduct comprehensive reviews of assembly procedures, component certifications, testing records, and manufacturing documentation. Any identified non-conforming issues are corrected and re-tested before final factory acceptance procedures, ensuring consistent manufacturing quality and dependable long-term operational reliability.
Design Tests
All transformers will be tested after finishing the production, test items as follows:
♦ Insulation Power Factor
♦ Ratio, Polarity, and Phase Relation
♦ Winding Resistance
♦ Impulse Tests
♦ On load Loss Test
♦ No Load Loss Test
♦ Transformer Turns Ratio/TTR (All Tap Voltages)
♦ Impedance Voltage & Load Loss (Rated Voltage)
♦ Polarity, 1-Ph / Phase Relation, 3-Ph (Rated Voltage)
♦ Excitation & No-Load Loss (Rated Voltage)
♦ Applied Voltage
♦ Induced Voltage
♦ Lightning Impulse
♦ Insulation Resistance (Rated Voltage)
♦ Temperature Rise
♦ Dielectric Withstand (Hipot)
Factory Acceptance Test
The transformer Factory Acceptance Test program for the 22kV 1000kVA Prefabricated Compact Substation is designed to ensure manufacturing quality consistency and dependable field operation in industrial and utility power distribution systems. The testing procedure begins with visual inspections and dimensional verification of the transformer tank, bushings, grounding terminals, cooling radiators, enclosure coating quality, and accessory installation to confirm conformity with approved engineering drawings. Protective devices and auxiliary systems including pressure relief valves, oil level indicators, Buchholz relays, cooling fans, thermal protection devices, and alarm systems are functionally tested to verify reliable operation during abnormal electrical conditions. Intelligent communication modules, remote monitoring systems, and SCADA integration interfaces are also tested for projects requiring advanced digital power management and smart-grid connectivity.
Routine Test - Insulation Power Factor
Purpose of Testing
The purpose of testing the insulation power factor is to evaluate the dielectric loss of the insulation system in electrical equipment, and to determine whether issues such as moisture ingress, aging, or contamination are present. A high power factor value usually indicates insulation deterioration.
Testing Equipment
Insulation power factor tester (e.g., brands like Doble, Megger) Voltage source (typically 1 kV, 2.5 kV, or 10 kV or as the customer request standard) Temperature and humidity meter (for recording environmental conditions)
Pre-Test Preparation
De-energize tap changer the equipment and ensure it has been properly grounded and discharged. Make sure the bushings and terminal connections to prevent surface contamination from affecting test results. Perform the test under suitable environmental conditions: relative humidity below 75% and no rain (recommended temperature: 20–30°C).
Test Progress
Connect the Test Instrument: Connect the test equipment to the bushings or terminals of the equipment under test and ensure proper grounding. Apply Test Voltage: Select the appropriate test voltage according to the rated voltage of the equipment (e.g., 25 kV for high-voltage windings or as the request of the pad mounted transformer).
Measure and Record
Start the test and record the following parameters: Capacitive current (IC) Power current (IW) Power factor (PF) or dissipation factor (Tanδ) Capacitance Ambient temperature and humidity at the time of testing
Temperature Correction
Correct the measured power factor to the reference temperature (typically 20°C) for accurate evaluation.
Repeat Testing (if necessary)
Measure different windings (high-voltage, medium-voltage, low-voltage) and bushings separately for comparative analysis.
Evaluation Criteria (Reference)
Insulation power factor ≤ 0.5% (Excellent) 0.5% < Power factor ≤ 1% (Good) 1% (Further inspection or corrective action required)
*These comprehensive tests ensure that each transformer meets performance standards and operates
reliably under various conditions.
Application
Widely applied in data centers, hospitals, railway stations, ports, oil and gas projects, temporary construction power systems, photovoltaic integration facilities, and remote industrial power distribution networks.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
Product Packaging
Transformers Packaging (1)
Transformers Packaging (2)
Transformers Packaging (3)
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What is a Transformer?A transformer is an electrical device used to change the voltage of alternating current (AC). It works on the principle of electromagnetic induction, converting high-voltage current into low-voltage current or low-voltage current into high-voltage current. Transformers are widely used in power transmission, distribution systems, and various electronic devices.
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What are the main uses of a transformer?The main use of a transformer is voltage conversion. Transformers are used in power transmission systems to help transfer electricity from power plants to consumers. In addition, transformers are also used in electronic devices such as chargers, televisions, power adapters, etc., to adjust the voltage to meet the requirements of different devices.
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Do you have UL listed?Yes, our transformer has UL listed. We have exported to America many pad mounted transformer,substation transformer and HV.
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