Project Summary
This case study shows how our team managed the supply, documentation, warranty claim coordination, and technical report submission for ABB KOFA 12F3 current transformers used for differential protection in Bangladesh.
The client was UPGDCL (Former UEL), Bangladesh. The project started as a trial order, because the client had previously imported similar items from overseas through Letter of Credit (LC). After successful supply and service support from our side, the client placed repeat orders.
Our team handled the full process from procurement coordination to communication with overseas partner and final report submission to the client.
Client Background and Need
UPGDCL (Former UEL) required current transformers for differential protection. These are critical electrical protection components, and the client needed confidence in the following areas:
• correct specification and ratio
• product authenticity and traceability
• safe packing and delivery condition
• responsive support after supply
• technical follow up in case of field issue
Because they were used to importing through overseas channels and LC process, the client initially placed a trial order with us to evaluate our execution quality.
Product Supplied
Based on the purchase order and item details, the supplied item was:
ABB KOFA 12F3 Current Transformer (for differential protection)
Key references seen in the project records and product labels include:
• ABB make
• KOFA 12F3 type
• differential protection current transformer application
• ratio class markings and label data on each unit
• serial numbered units for traceability
The project photos also show:
• unit nameplate labels
• serial number stickers
• packing condition before dispatch
• crate packaging and handling condition
• grouped shipment layout for multiple units
This visual evidence is important because it increases buyer trust and proves physical control, packing discipline, and traceability.
Order Development: From Trial to Repeat Business
This project is important not only because of the item supplied, but because of what happened after the first supply.
The client initially placed a trial order with us instead of importing directly from overseas through LC.
After successful performance, the client continued ordering from us. Over time, we received repeat orders three times, and each order included 3 pieces (one set), making a total of 9 units supplied under this supply relationship.
This was a strong sign of client confidence in our team’s execution, documentation support, and response quality.
What Our Team Managed
Our team handled the project execution in a structured way. This included:
1) Technical and Commercial Coordination
• matching item requirement with supplied model
• coordinating quantity and delivery expectations
• ensuring product labeling and traceability records were available
2) Packing and Shipment Handling
• checking physical packing condition
• ensuring safe handling for transport
• preparing and monitoring dispatch stage communication
3) Client Communication and Follow Up
• timely responses during order execution
• after delivery support
• issue escalation support when needed
4) Warranty Claim Coordination and Overseas Return Process
In December 2025, the client reported a burning issue involving one set (3 pieces) and raised a warranty claim.
Our team then coordinated the full process:
• claim communication and document collection
• export of the affected units to our overseas partner (Germany channel)
• technical testing coordination through ABB network/service
• obtaining the formal test/investigation report
• submission of the report back to the client
This end to end handling was completed by our team, and the client appreciated the speed, transparency, and professional support throughout the process.
Technical Investigation and ABB Report Support
One of the strongest parts of this case was not only the supply, but the post supply technical support.
When the client reported the issue, we did not stop at basic communication. We coordinated an actual technical review and supported formal testing through our overseas partner and ABB service process.
The investigation and test documentation helped the client get a structured technical response instead of informal assumptions.
This is exactly where many suppliers fail. They can sell the item, but they cannot manage the technical follow up, warranty communication, and report submission professionally.
Our team managed the full chain.
Why This Case Matters for Industrial Buyers
This case is useful for power and utility buyers because it demonstrates more than simple trading.
It shows capability in:
• trial order conversion into repeat orders
• supply reliability for protection equipment
• serial number based traceability
• packaging and handling discipline
• warranty claim coordination
• overseas technical testing support
• formal report submission to client
For buyers, this reduces risk. For engineering and store teams, this saves time. For procurement teams, this creates confidence in future orders.
Outcome
The project delivered value in two stages:
Stage 1: Supply Performance
The client moved from trial basis ordering to repeat orders, with total supply reaching 9 units.
Stage 2: After Sales and Claim Handling
When a field issue appeared later, our team handled the warranty claim route, overseas return coordination, ABB technical testing support, and final report submission to the client.
The client was satisfied because the full process was handled professionally by one team without confusion.
Conclusion
This UPGDCL (Former UEL) case study shows how industrial procurement support should work in real life.
Supplying the product is only one part. The real value comes from:
• technical coordination
• documentation discipline
• traceability
• responsive communication
• after sales issue handling
• formal testing and report support
That is how trust is built and repeat orders happen.
If you are a utility, EPC team, or industrial buyer looking for a supplier support team that can manage both supply and post supply coordination, this case shows how we work.
