QXG is a reputable manufacturer and supplier of pad mounted transformers, offering UL/cUL listed products.
QXG offers both three phase and single phase pad mounted transformer.
QXG three-phase pad-mounted transformers cover a capacity range from 45 kVA up to 10000 kVA, with multiple configurations available:
Our tamper-proof, compartmentalized liquid-filled pad-mount transformers are independently designed and tested by our team experienced in North American standards. Customizable over-current protection and sectionalized switching are available.
QXG single-phase pad-mounted transformers cover a capacity range from 10 kVA up to 250 kVA, available in radial feed and loop feed configurations.
Our oil-insulated, self-cooled single-phase pad-mount units feature tamper-proof, low-profile cabinet design for outdoor installation. Aluminum or copper windings are optional, optimized for compact footprint and high operating efficiency. Widely used for underground power supply to residential, commercial and light industrial loads.
| Rating(kVA) | No Load Loss(W) | On Load Loss(W) | W(mm) | D(mm) | H(mm) |
|---|---|---|---|---|---|
| 15 | 50 | 195 | 610 | 740 | 840 |
| 25 | 80 | 290 | 610 | 740 | 840 |
| 37.5 | 106 | 360 | 610 | 760 | 840 |
| 50 | 135 | 500 | 610 | 810 | 840 |
| 75 | 190 | 650 | 610 | 860 | 840 |
| 100 | 280 | 1010 | 965 | 1200 | 910 |
| 150 | 330 | 1260 | 965 | 1200 | 910 |
| 167 | 435 | 1530 | 965 | 1200 | 1000 |
| 200 | 490 | 2010 | 985 | 1200 | 1000 |
| 250 | 550 | 2230 | 1430 | 1300 | 1250 |
| Rating(kVA) | No Load Loss(W) | On Load Loss(W) | W(mm) | D(mm) | H(mm) |
|---|---|---|---|---|---|
| 75 | 180 | 1250 | 1280 | 990 | 1270 |
| 150 | 280 | 2200 | 1480 | 1245 | 1270 |
| 225 | 400 | 3050 | 1480 | 1295 | 1270 |
| 300 | 480 | 3650 | 1480 | 1295 | 1270 |
| 500 | 680 | 5100 | 2000 | 1700 | 2000 |
| 750 | 980 | 7500 | 2100 | 1900 | 1700 |
| 1000 | 1150 | 10300 | 2200 | 2000 | 1800 |
| 1500 | 1640 | 14500 | 2500 | 2200 | 2000 |
| 2000 | 2160 | 20645 | 2800 | 2300 | 2000 |
| 2500 | 2680 | 27786 | 3100 | 2800 | 2200 |
QXG is a professional manufacturer of high-quality pad-mounted transformers. Backed by our in-house team with long-standing expertise in North American standards, we independently design and manufacture transformers that are UL/cUL and CSA certified, fully compliant with ANSI, IEEE and DOE requirements. Our pad-mounted transformers are reliable, safe and built for consistent long-term operation.
These authoritative third-party certifications are a testament to our transformer manufacturing expertise and our commitment to meeting the highest industry safety and performance standards.
QXG compartmental pad-mounted transformers adopt separate HV and LV compartments, available in dead-front and live-front designs. Both radial feed and loop feed configurations are offered for underground distribution networks. Our units comply with ANSI/IEEE, CSA and DOE standards. Supported by our in-house core factory, we deliver stable quality with faster lead times for custom orders.
Both radial-feed and loop-feed systems are underground medium-voltage distribution schemes for pad-mount transformers. Their core purpose is to transmit medium-voltage power to step-down transformers for end-user loads.
QXG provides versatile accessory options for pad-mounted transformers. Customers can choose renowned international brands such as Qualitrol, Eaton or high-quality domestic brands, for flexible configuration according to project technical demands and budget.
QXG offers tailored pad-mounted transformer solutions. Our skilled engineering team serves customers across the US, Canada and overseas. Customizable items include ratings, voltage, configurations, colors and features. With our in-house core factory, we deliver shorter lead times. Our transformers comply with ANSI/IEEE, CSA, DOE standards to meet top industry quality and safety requirements.
QXG's pad-mounted transformer utilizes paints and varnishes that adhere to the ISO 12944-1 international standard. The steel structure of the transformer oil tank and enclosure is protected against corrosion through engineered coating systems. Our standard coating system falls under the medium category, offering a lifespan of 7–15 years.
The paint protection level can be customized according to specific requirements. QXG is capable of supplying coating systems up to C5 corrosion class, suitable for coastal salt-spray and heavy industrial environments.
“My technicians only had praises for the three transformers we purchased from you.”
“You are the best medium size manf……you have great quality and amazing engineering. Your prices to canada are good.”
“The testing performed to this point has been great. / I really like the unit great job.”
Place the unit on a solid, reinforced concrete pad. Standard installation condition: altitude ≤1000 m, average ambient temperature 30–40°C. Complete full pre-installation inspection: check for insulating oil leakage, surface condition, gaskets and accessories. Verify the oil level is within the normal range. If any visible damage is detected, contact qualified personnel for internal inspection before energization. Verify proper tank grounding.
Make high-voltage connections strictly following the transformer nameplate and wiring diagram. Live-front units adopt porcelain bushings with tinned eyebolt terminals; cables feed vertically upward from below. Dead-front units use matching bushing wells and inserts for cable termination. For detailed installation procedures, please contact QXG technical staff.
Inspect bushing insulators for contamination, tracking and cracks during each maintenance. Check for oil seepage at flange gaskets. Following the above maintenance requirements helps ensure stable operation, extend service life and improve reliability of pad-mounted transformers.
Generally, for standard transformers, we can finish production within 4 to 8 weeks, the ideal delivery time (contains shipping) could be 12 weeks. The actual delivery time depends on the complexity and quantity of the order, and the location of receiver.
QXG Technology has been focusing on Pad Mounted Transformer, Pole Mounted Transformer, Substation Transformer and other types transformers for more than 10 years.
Yes, we can provide overseas brand accessories. For the bushing, we normally use CHARDON and COOPER; For the fuse, mostly we use EATON; For the gauges and other accessories, we can provide both Chinese domestic and overseas brand, such as QUALITROL, EATON, H-J…
We strictly adhere to IEEE/ANSI/DOE/CSA and other North American and Latin American related Standards.
We have UL and CUL certifications, which attest to the safety and quality of our products, especially for the North American market. We also hold CE, ISO, and other reliable certificates.
Yes, we provide professional OEM services. Whether you have a unique design concept or specific performance requirements, our team is ready to work with you. We can manufacture transformers according to your specifications, including customizing the appearance, performance parameters, and packaging.
