Comprehensive Guide to 320kVA – 22/0.4KV Substation Construction

The necessity for a resilient and efficient power distribution system is ever-increasing in today’s fast-paced world, where energy is a critical asset. The project aimed at the construction of a 22KV transmission line and the establishment of a 320kVA 22/0.4KV substation is a strategic move towards enhancing the power distribution framework. This project is characterized by the strategic selection of premium components and the deployment of skilled labor, ensuring the transmission system’s durability and operational excellence. The project aligns with the latest technological standards and involves strategic coordination with energy regulatory entities. An in-depth analysis will follow, focusing on the assembly and deployment of the project, detailing financial strategies, and elucidating on customer service and regulatory compliance, to provide a holistic view of the project’s scope.

I- CONSTRUCTION ESTIMATE TABLE

 

1. 22KV TRANSMISSION LINE:

(Here, each material listed in your document will be specified with its unit, quantity, USD and VND price, and the percentage of total cost it represents.)

 

For the installation of a 22KV transmission line essential for the distribution of electricity, a meticulously curated set of components and comprehensive services is crucial. Below is an elaborated list of materials and services designed for this purpose:

– Poles crafted from concrete with a 14-meter height, created using the centrifugal spinning technique for durability and stability.

– Zinc-coated iron braces, precisely cut to the dimensions of L2400x75x75x8mm, ensuring a secure and robust structure.

– Supportive bracing bars, 60x6x920mm in size, zinc-coated for additional strength and resistance to the elements.

– Insulators designed to stand firm at 24Kv, ensuring the safe suspension of high-voltage lines.

– Suspension insulators made from high-grade polymer, rated for 24Kv, to sustain the transmission line reliably.

– Insulated AXV cables with a cross-section of 50mm², serving as the phase conductors, critical for the transmission of electricity.

– Neutral conductors made from bare AC, with a substantial 50mm² cross-section, to balance the electrical system.

– CXV cables, 25mm² and insulated, dedicated to acting as phase conductors within the system’s framework.

– Fuse cutout units rated at 200A and designed for 24kV operations, crafted from polymer and inclusive of a base for secure mounting.

– Conductive lead wires, known as 20K, integral to the electrical circuit.

– Protective caps designed for the top and bottom parts of the fuse cutout, safeguarding the electrical components.

– Composite braces spanning 2.4 meters, accompanied by a bracing bar, fortifying the structure.

– A 3-phase, 4-wire electronic meter, rated at 120/60V and 5A, to accurately measure electricity usage.

– Multi-core cables, Cu/XLPE/PVC, at 4Cx25mm² and rated for 0.6/1kV, ensuring safe electrical transmission.

– Cabinets for electric meters, constructed from composite materials and sized at H500 x W300 x D200 mm, to house metering equipment.

– Essential grounding mechanisms for the transmission line to ensure safety and stability.

– Foundations for poles, designed to anchor the transmission structures securely to the ground.

– Testing services for the transmission line, ensuring all components meet safety and operational standards.

– Additional accessories for the transmission line, providing the necessary components for a complete installation.

– A comprehensive labor package, offering skilled manpower for the complete setup and installation of the transmission line.

This detailed enumeration not only ensures the provision of high-quality materials but also guarantees skilled labor to establish a robust and reliable 22KV transmission line.

 

2. 320kVA SUBSTATION – 22/0.4KV:

To construct a state-of-the-art electrical substation, a comprehensive list of components and services is meticulously organized to ensure a seamless assembly and operational process:

– Concrete Pole of 14 meters, manufactured using a centrifugal spinning process

– Structural Iron brace measuring V75x75x8x2.6m, with a 2.4m spacing for three-phase covers, 80 size cover, insulator and fixed connection unit (FCO) mounting

– Supportive Iron brace V75x75x8x2.6m, spaced at 2.4m without cover, designed for main switchboard (MSB) and compensatory box mounting

– U-shaped brace at 100mm width and 0.5m length

– U-shaped brace extending 1.1m at 100mm width

– Sturdier U-brace variant, 200mm width extending over 2.8m (with a 2.4m hole center)

– High-voltage Polymer Insulator, 24kV rated, DR600 model with supporting rod

– Auxiliary Transformer station accessories

– Foundation specifically designed for poles

– High-grade 24KV insulated cable, with cross-linked polyethylene and PVC sheathing, 25mm2 thickness

– Copper cables rated CV/600V for transformer outputs at both 240mm2 and 120mm2 specifications

– A robust Oil Transformer engineered for three-phase operation at 320kVA capacity, 22/0.4KV rating

– Fuse cutout (FCO) rated at 200A, 24kV with polymer build and base

– Conductive Lead wire rated at 20K specifications

– Protective caps for both the top and bottom of the FCO

– Lightning Arrester (LA) rated at 18KV with a 10KA interrupt rating

– Caps for the LA on both ends

– Electrical cabinet split into two compartments, inclusive of Molded Case Circuit Breaker (MCCB) and capacitor switch panel (CSPK) for reactive power compensation

– MCCB tailored for three-phase systems at 500A rating

– Compensation panel designed to handle 160Kvar, improving the power factor of the substation

– PVC Piping of D114 diameter, alongside necessary fittings such as bends, connectors, and collier clips

– Identification nameplates for FCO, poles, and station, with safety warnings against climbing

– Grounding arrangements for the transformer station ensuring earth connectivity

– Provisions for comprehensive equipment testing

– Complete labor package covering all phases from setup to final checks

 

This detailed inventory ensures that each aspect of the substation’s construction is addressed with high-quality components and expert service, paving the way for a reliable power distribution hub.

 

3. OTHER COSTS:

(Include costs related to design, supervision, testing, commissioning, and transport.)

Crafting a detailed expense report for a substation construction project involves several distinct financial categories, each integral to the completion of the build:

Expenditure on Planning, Forecasting, and Valuation:

Allocating funds for the initial phases where project blueprints are drawn, costs predicted, and the value of the project is assessed.

Oversight Expenditure:

Resources dedicated to the management and oversight of the construction process, ensuring adherence to specifications and quality standards.

Electrical Disconnection Fee:

The necessary expenditure for the safe disconnection of existing electrical services to prepare for the new installation.

Assessment and Inauguration Expenses:

Costs incurred during the rigorous assessment of the system’s functionality and its formal induction into service.

Logistics and Material Movement Budget:

The financial outline for the procurement and delivery of construction tools, machinery, and materials essential for the project.

4. TOTAL PROJECT COSTS

In total cost, you can find all of the items mentioned above in our video.

II. MAIN WORK CONTENT

From approval of the initial documentation to the final touches on the construction of the 320kVA transformer station, we ensure meticulous adherence to the latest electrical equipment standards. The total estimated timeframe for the project from inception to energization is 45 days.

III. CONSTRUCTION PHASES AND PAYMENT

Payment for the project is broken down into three stages to correspond with the completion of various milestones, including a 50% upfront payment, a 40% payment upon major installations, and the final 10% after testing and energization.

IV. WARRANTY AND AFTER-SALES SERVICE

A 12-month warranty underscores our commitment to reliability, supplemented by our responsive after-sales service to address and swiftly resolve any technical concerns.

V. CONCLUSION

Quang Anh CE Co.,LTD is poised to execute the construction of your 320kVA – 22/0.4KV transformer station with unmatched professionalism and precision. Contact us for a detailed consultation and to begin a partnership that values progress and efficiency in energy management.

VI. Documentation and Legal Procedures for a 250kVA Substation

Embarking on the construction of a 250kVA transformer station in Vietnam demands a thorough understanding of the country’s specific legal and regulatory framework. This guide is crafted to navigate you through the intricate tapestry of necessary steps and documentation, ensuring each phase of your substation build adheres to the stipulated requirements.

Critical Steps and Documentation:

Acquisition of Preliminary Documentation:

The process begins by gathering essential legal documentation. These foundational documents comprise current land use rights certificates or leases, up-to-date business licenses, identification for the business’s legal representative, and recent environmental protection plans—all authenticated within the preceding three months.

Initiation of Electricity Purchase Application:

The pivotal first move in the construction sequence is lodging an electricity purchase request. This submission to the local Power Company or the Business Department of Vietnam Electricity Group sets the wheels in motion for the substation’s inception.

Specification of Electricity Usage Site & Goals:

Providing a clear-cut specification of the site and purpose for electricity utilization is compulsory. Critical documents required include proof of property ownership, the legal representative’s ID, and business operation credentials, such as registration or investment licenses.

Submission of Standardized Connection Procedures:

Advancement in the process necessitates a standardized connection application complete with detailed schematics and technical documents that comply with the regulations of the Ministry of Industry and Trade.

Detailed Site Evaluation & Technical Consultations:

Subsequent to the application, a rigorous site assessment is conducted by the Power Company, followed by a technical dialogue to finalize the connection point and technical requisites.

Investment Agreement Conclusion & Legalities:

Conformity with the Electric Power Development Plan is essential, necessitating the acquisition of appropriate construction permits and strategizing for environmental conservation.

Commencement of Construction & Substation Formation:

The tangible construction begins with meticulous land preparation, procurement of materials and equipment, and the execution of the build under stringent quality control.

Substation Commissioning & Energization:

The culmination of the project is marked by an official commissioning and acceptance testing phase, culminating in the station’s energization under the supervision of the Power Company.

This systematic guide is designed to facilitate a structured and regulation-compliant approach to building your 320kVA transformer station in Vietnam. For a comprehensive estimate and specialized counsel on your substation construction, contact our expert team. We are equipped to support you in meticulous planning, accurate pricing, and navigating all necessary legal formalities for a seamless construction journey.

Contact us:

Quang Anh CE Co.,LTD

– Hotline: (+84) 9 1975 8191
– Email: project@quanganhcons.com
– Office: 41F/22 Dang Thuy Tram Street, Ward 13, Binh Thanh District, Ho Chi Minh City, Vietnam
– Working hours: Monday to Friday, from 8:00 am to 5:00 pm.

Note: All costs and procedures are indicative and are subject to change based on site-specific conditions and market factors. The provided contact details facilitate direct communication for updates and personalized service.