Transformer-Quote

Jinan Qinghe Electric — <a href="/dry-type-transformer/30kva-sg-dry-type.html" class="huazhi_inner_link" style="color:#337ab7;">Transformer</a> Manufacturer & Supplier | Quotation Within 24 Hours
Manufacturer direct · Factory in Jinan, Shandong, China · Established 1992
China · +86 188 6689 2087      North America · +1 504 909 1759
Chinese Factory · Direct Export Since 1992

Transformer Manufacturer & Supplier — Quotation Within 24 Hours

Dry-type cast resin, oil-immersed, amorphous alloy, pad-mounted and pole-mounted distribution transformers plus LV/MV switchgear — engineered, manufactured and tested in our own 28,000 m² plant and shipped worldwide.

  • 50 kVA to 3,750 kVA — standard ranges and fully custom designs to your single-line drawing

  • UL 891 certified low-voltage switchboards already exported to the United States

  • Qualified supplier to State Grid Corporation of China — the same lines build your order

  • Routine and type test reports, factory acceptance testing and full export documentation

1992
Established
28,000m²
Plant Area
350+
Employees
¥104.6M
Reg. Capital

Request a Quotation

Send your specification — our engineers reply within one business day.

Your specification goes straight to our engineering team. We answer within one business day.

WhatsApp us          Email us
UL 891
Certified LV switchboards exported to the USA
State Grid
Qualified supplier to State Grid Corporation of China
"Little Giant"
National specialised & innovative enterprise, SME 2021
Global Leading Enterprise
Power Transformer Award, Waici Transformer Summit 2020
Product Range

Standard ranges — or built to your drawing

Every unit is designed, wound, assembled and routine-tested in our own plant. Tell us the rating and standard; we quote against your specification, not a catalogue.

ProductSeriesTypical CapacityCommon Application
Dry-type cast resin transformerSCB12 / SCB14 / SCB1850 – 2,500 kVAIndoor substations, commercial buildings, data centres, plant rooms
Oil-immersed distribution transformerS20 fully sealed100 – 2,500 kVAUtility distribution, industrial sites, outdoor substations
Amorphous alloy transformerSBH21 / SBH2580 – 2,000 kVALow no-load loss, energy-efficiency and carbon-reduction projects
Pad-mounted transformer / box substationZGSUp to 3,750 kVA34.5 kV / 0.48 kV North American style, solar & industrial parks
Single-phase pole-mounted transformerPole-mountedRural distribution ratingsOverhead distribution networks, rural electrification
Low-voltage switchboardUL 891To project scheduleNorth American commercial & industrial distribution
Medium-voltage switchgearMV panelsTo project schedulePrimary distribution, substation feeders
Air-core reactor · AVR · inverterAncillaryProject specificPower quality, voltage regulation, renewable integration

Need a rating not shown? Send your specification — custom designs are routine for us.

Why Buyers Choose Qinghe

A factory, not a trading company

You deal directly with the people who build the transformer — which means real engineering answers, factory pricing and accountability for what ships.

🏭

Three decades of build history

Founded in 1992, with 350+ employees across a 28,000 m² manufacturing site in Jinan, Shandong. Winding, tank fabrication, assembly and testing are all in-house.

🛡️

Certified for demanding markets

UL 891 certified low-voltage switchboards, IEC and ANSI/IEEE supported, and approved supplier status with State Grid Corporation of China.

🌍

Proven export delivery

Shipments completed to the United States, Ethiopia and beyond, with a dedicated North America sales branch supporting buyers in local hours.

📋

Full test documentation

Routine and type test reports, factory acceptance testing on request, and complete export paperwork so customs and consultants are satisfied.

💰

Manufacturer-direct pricing

No agent layered on top. You get the factory quotation, with clear scope on accessories, packing and incoterms.

👨‍🔧

Engineers, not call handlers

Your enquiry is answered by people who can discuss impedance, vector group, temperature rise and short-circuit withstand — not read from a script.

Recent Track Record

Where our equipment is already running

2023 · 11

ZGS-3750 kVA pad-mounted transformer shipped to Houston, USA

34 / 0.48 kV unit completed all testing and certification procedures before dispatch to Texas.

2023 · 06

22 UL 891 certified low-voltage distribution cabinets exported to Los Angeles

Supporting industrial and commercial power safety upgrades in the North American market.

2023 · 09

Oil-immersed transformers delivered to State Grid Shandong project

Batch production dispatched on schedule to a key State Grid Electric Power site.

2023 · 08

Transformer supply contract signed with Ethiopian client

Delegation visited the plant for inspection before concluding the agreement.

2022

Beijing Winter Olympics power supply support

Qinghe amorphous-series transformers helped secure power system stability throughout the Games.

Ongoing

Jinan Yaoqiang International Airport power stability

Box-type variable platforms supporting reliable distribution across critical airport infrastructure.

Send us your specification today

Quotation within one business day — drawings, ratings or a simple description all work.