Comprehensive Guide to Constructing a 250kVA – 22/0.4kV Substation

In the quest to meet the growing demand for electricity in a sustainable and reliable manner, upgrading the electrical grid with a 22KV transmission line and a 250kVA 22/0.4KV substation is crucial. This project stands out for its detailed approach in selecting the finest materials and expert workforce to ensure the effective distribution of electricity. With a strong focus on incorporating the latest advancements in electrical engineering and maintaining synergy with energy governance bodies, this project aims to bolster the electrical supply network. An elaborate discussion on this project will unveil the specifics of material and labor selection, project execution methodologies, financing mechanisms, customer support frameworks, and adherence to regulatory standards, offering an exhaustive overview of the initiative.

CONSTRUCTION OF 250kVA – 22/0.4KV SUBSTATION

Building a 250kVA – 22/0.4kV substation is a specialized task that ensures the seamless distribution of electrical power to various sectors, impacting the growth and development of the local community. Detailed below are the stages involved in the construction of such a substation, including the estimation of costs for materials and labor, as well as the comprehensive procedures and warranty services offered.

I. Estimation of Materials and Equipment

1. 22kV Transmission Line:

Featuring spun concrete poles, iron braces, insulators, and other necessary materials.

Featuring spun concrete poles, iron braces, insulators, and other necessary materials.
• Iron brace L2400x75x75x8mm/Zn
• Bracing bar 60x6x920/Zn
• 24Kv Standing Insulator + Ty
• 24Kv Polymer Suspension Insulator
• AXV 50mm2 insulated cable: phase conductor
• Bare AC 50mm2 cable: neutral conductor
• CXV 25mm2 insulated cable: Phase conductor
• FCO 200A-24kV polymer + bass
• Lead wire 20K
• Top and bottom FCO cap
• 2.4m composite brace + bracing bar
• 3P 4 wire 120/60V – 5A electronic meter
• Cu/XLPE/PVC 4Cx25mm2 cable – 0.6/1kV
• Electric meter composite cabinet size H500 x W300 x D200
• Earth connection for transmission line
• Pole foundation
• Transmission line testing
• Transmission line accessories
• Full package laborors, polymer bases, and other necessary accessories.

2. 250kVA Substation Setup:

– Includes poles, braces, insulators, and transformer station accessories.
• 14m centrifugally spun concrete Pole
• Iron brace V75x75x8x2.6m, hole center 2.4m(3 covers, 80 cover, insulator + FCO mount)
• Iron brace V75x75x8x2.6m, hole center 2.4m(no cover, MSB + compensation box mount)
• U-brace 100×0.5m
• U-brace 100×1.1m
• U-brace 200×2.8m(hole center 2,4m)
• 24kV Polymer Standing Insulator DR600 + rod
• Transformer station accessories
• Pole foundation
• 24KV insulated C/XLPE/PVC 25mm2 cable
• CV/600V-240mm2 cable output Transformer
• CV/600V-120mm2 cable output Transformer
• Oil Transformer 3 Phase 250kVA- 22/0.4KV
• FCO 200A-24kV polymer + bass
• Lead wire 20K
• Top and bottom FCO cap
• LA 18KV 10KA
• Top and bottom LA cap
• 2 compartment MSB cabinet (MCCB + CSPK compensation)
• MCCB 3P 500A
• 125Kvar compensation panel
• PVC Pipe D114
• PVC Pipe bend D114
• PVC Pipe connector D114
• PVC Pipe collier clip D114
• Nameplate for FCO, pole, station, no climbing warning
• Transformer station earth connection
• Equipment testing
• Full package labor

3. Additional Costs:

– Design, supervision, cut-off connections, testing, and transportation.
• Design, estimation, appraisal costs
• Supervision cost
• Cost of electrical connection cut-off
• Testing and commissioning cost
• Construction equipment & transportation of materials and equipment

II. Total Costs

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

III. Project Execution Overview

– The construction involves documentation preparation, installation of metering sets, and a new MCCB switchboard with a compensating capacitor bank to enhance power quality. Our commitment is to follow all current standards and coordinate meticulously with electrical authorities to energize the project within 45 days.

IV. Payment Schedule

The timeline for project completion is 45 days, with payments divided into three installments:
• Installment 1: 50% prepayment post-contract signing.
• Installment 2: An additional 40% after installation of the transformer.
• Installment 3: The remaining 10% upon energization and testing.

V. Warranty and After-sales Service

– We guarantee a 12-month warranty for the substation, ensuring any technical concerns are addressed promptly and effectively.

VI. Documentation and Legal Procedures

Building a robust 250kVA transformer station in Vietnam is an intricate process governed by strict regulatory compliances. This guide provides an exhaustive overview of the necessary steps and documents essential for the construction and establishment of a transformer station, tailored to meet Vietnam’s unique regulatory environment.

Essential Documentation and Application Stages:

Preliminary Documentation Collection:

The foundation of the construction process is the acquisition of critical legal documents. These include authenticated copies of the land use rights certificate or lease, business licenses, identification of the business’s legal representative, and environmental protection plans, all validated within the last three months.

Electricity Purchase Application Initiation:

The critical first step is to submit an electricity purchase application. This request is directed to the local Power Company or the Vietnam Electricity Group’s Business Department, kick-starting the setup of the transformer station.

Defining the Electricity Usage Site & Objectives:

It’s imperative to provide precise details regarding the location and purpose of electricity usage. Documentation such as property ownership proof, legal representative’s ID, and evidence of the business’s scope via registration or investment licenses is required.

Standardized Connection Procedure Submission:

The process progresses with a formal application for connection, which includes comprehensive technical diagrams and documentation that align with the Ministry of Industry and Trade’s strict standards.

Thorough Site Assessment & Technical Dialogue:

Following your application, the Power Company carries out an in-depth site evaluation and engages in technical negotiations to determine the exact connection point and requirements.

Finalizing the Investment Agreement & Legal Processes:

Aligning with the Electric Power Development Plan is critical, along with obtaining the relevant construction permits and planning for environmental protection measures.

Embarking on Construction & Station Establishment:

The tangible phase of erecting the transformer station involves land preparation, acquiring materials and equipment, and overseeing the build with precision.

Commissioning & Energizing the Station:

The project reaches its zenith with a formal commissioning process and the final acceptance testing, leading up to the official energization carried out with the Power Company’s oversight.

This stepwise guide ensures that your journey towards constructing a 250kVA transformer station in Vietnam is compliant, efficient, and aligned with the country’s energy infrastructure needs.
For a detailed quote and expert advice on building your 250kVA substation, reach out through the contact details provided. Our professionals are ready to guide you through planning, price evaluation, and legal formalities for a successful construction process.

Contact us:

Quang Anh CE Co.,LTD

– Hotline: (+84) 9 1975 8191
– Email: project@quanganhcons.com
– Office:Unit 02, 08th floor, Pearl Plaza Building, 561A Dien Bien Phu Street, Ward 25, Binh Thanh District, Ho Chi Minh City
– 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.