FAQ

We have dedicated after sales service team, any support regarding installation, on site commissioning, maintenance, please just contact us and we will response within 24H.
For any concern or complaint, please send your advice to mail: sales@drbyq.com

We have complete and professional quality control system, and for each unique product before delivery, it will go through several strict test and make sure the required performance and stability of the machine.

Customer own the product supervision right, and for each important process during the manufacturing and testing (or to be defined by customer’s request), by means of on site check or on line check. Meanwhile, we will also provide traceable records for check.

Wooden pallet packing or or to be defined by customer.

For standard product, approximately 15 working days before delivery.
For customized product, approximately 20~30 working days before delivery.
Order quantity/customization requirements can also affect the leading time.

1 years of warranty at least.
For the first order we normally accept T/T, 30%+70%. Regular customer payment terms to be negotiated by both parties.

(1)Transformer Size / Insulation Level:Power transformers have a higher insulation level than distribution transformers
(2)Iron Losses and Copper Losses:Power transformers lose energy as heat due to eddy current losses in their steel laminations and hysteresis losses in the core material. Distribution transformers don’t have any iron parts, so they have lower iron losses than power transformers. They also lose energy due to hysteresis losses in the core material.
(3)Maximum Efficiency:Power transformers are generally less efficient than distribution transformers because of their larger size and heavier currents.

(1)Dry-Type Transformer:A dry-type transformer is a motionless piece of equipment that uses environmentally acceptable temperature insulation systems. They are also known as “cast resin type transformers.”
(2)Oil-Filled Transformer:Oil-filled or oil-immersed transformers are voltage conversion devices that use oil to keep the transformer cool. This type of transformer structure is mounted in a welded steel oil tank filled with oil.
(3)Summarize:Based on our dry-type transformer vs. oil-filled transformer analysis, oil-filled transformers appear to be a better alternative in terms of energy-saving, cost-saving, and recyclability. Dry-type transformers, on the other hand, are safer for interior operations.

(1)The alternating current power supply can be classified into single-phase(1-phase) and three-phase(3-phase). In general, a single-phase power is used where electricity requirement is low. In short, it is for running small equipment. The three-phase power carries a heavy load and can run large machinery in factories.
(2)When it comes to single phase vs three phase, the main difference is that the former is used for household electricity requirements and the latter one is used to run heavy machinery. This article discusses the differences between them so that you can know what three phase power is and understand how they work.

Routine transformer maintenance isn’t a one-time thing. It would be best if you drafted individual daily, weekly, monthly, and yearly maintenance strategies. Additionally, you will have to specify different transformer maintenance elements for each period.

(1)Check transformer dust accumulation and clean up.
(2)Transformer turns ratio experiment and dielectric absorption experiment were carried out.

We accept returns within 30 days of purchase if the product is unused or unwanted. We will also pay for return shipping if the return is due to an error on our part (you received an incorrect or defective item, etc.).

Swap is allowed. Please contact us for more information. We handle communications on a case-by-case basis. Customer is responsible for any shipping charges that may occur.

Shipping by sea is our most commonly used mode of transportation, because the size and weight of transformer products are relatively large, so shipping by sea is the most suitable.

Yes, we support customized transformers, please contact us by phone, email or Whatsapp.

Our factory has a batch of transformers in stock. If you want to customize, we will design and produce according to your needs.

Yes, for smaller transformers, we support LCL shipping, which can save shipping costs. Larger transformers are generally shipped in full containers to avoid damage during transit.

You can click on “Order Status” to get the latest information about your order. If there is no update information, please contact us by phone, email or Whatsapp.

Boxes have weight restrictions. In order to avoid additional customs fees, we will try our best to arrange transportation in a full container without damage to the goods, but this needs to be determined according to the actual situation.

Please call, email or Whatsapp message to us stating the model and quantity. We will do our best to meet your needs.

It’s still on the product page in other image views. Some newer products do not yet have a spec sheet, if you do not see it on our website please contact us for more information.