
Beijing Hezong Science & Technology Co., Ltd.
Beijing Hezong Science & Technology CO., Ltd (Hezong) is a high-tech enterprise providing technological solutions to our customers of power distribution and control equipment in the power industry.
We have always been strengthening innovation through our striving R&D department, and our innovative and patented technology combined with our advanced production base in Beijing, and strong marketing strategies of end-end partnerships has been leading Hezong to success on a global platform.
Our production base is equipped with advanced manufacturing and testing facilities with modern management systems, which ensure reliability and efficiency.
As one of the leading one-stop solution provider of power distribution systems in China, we offer products ranging from gas insulated ring main units, MV/LV air insulated switchgear, prefabricated substation, pole-mounted switches, distribution automation terminals (FTU/DTU), distribution transformers, to cable branching switchgear.
Hezong's sole purpose is to contribute towards attaining a more sustainable environment by providing high quality products and services to our clients all over the world and satisfy them.
Pad-mounted Transformer // Transformer Capacity 50 to 1000 kVA Voltage HV: 12/20 kV Type Pad-mounted

Transformer Capacity (kVA): 50 to 1000
Size: Small
Cable Distribution Cabinet // Operation Front and rear side Voltage LV and MV Design/Feature Modular system makes planning easy

Operation: Front and rear sides
Structural Features: Robust and versatile enclosures for a variety of applications
YB Series Prefabricated Substation // Transformer Capacity 50 to 1000 kVA Voltage 7.2 to 40.5kV rated

Transformer Type: Dry/oil
avail Voltage Range: HV and LV combination flexible
FDL/FDZ Series Sectionalizer // Operation Tripping Times: 1 to 4 Voltage Up to 40.5kV 200A 10kA/1s Design/Feature Pickup Current: 80 to 400A

Three-phase
trip available
Auxiliary power not necessary
Max 3 times re-close operation
Communication: Available
S13-M Series Tridimensional Toroidal-Core Distribution Transformer // Transformer Capacity 30 to 1600 kVA Voltage HV: 12 kV; LV: 0.4 kV Design/Feature Symmetrical 3-dimension structure Type S13-M Series Tridimensional Toroidal-Core Distribution

Transformer Capacity (kVA): 30 to 1600
Supply: Single or three phases
DC(B)/SC(B) Series Resin-insulated Dry-type Transformer // Transformer Capacity 30 to 2500 kVA Voltage HV: 7.2 to 12 kV; LV: 0.4 kV Type DC(B)/SC(B) Series Resin-insulated Dry-type

Transformer Capacity (kVA): 30 to 2500
Energy Saving: Low load / power loss
Oil free, less maintenance
D/S11-M Series Oil-immersed Transformer // Transformer Capacity 30 to 2500 kVA Voltage HV: 7.2 to 12 kV Type D/S11-M Series Oil-immersed

Transformer Capacity (kVA): 30 to 2500
Cable Entry Position: Top entry
Coil material: Oxygen-free copper
D/S(B)H15-M Series Amorphous Metal Transformer // Transformer Capacity 30 to 1600 kVA Voltage HV: 7.2 to 12 kV; LV: 0.4 kV Type D/S(B)H15-M Series Amorphous Metal

Transformer Capacity (kVA): 30 to 1600
Energy Saving: Low load / power loss
Oil free, less maintenance
Medium Voltage Switchgear // Voltage Up to 24kV 630A 20kA/4s Design/Feature Sealed by EPDM available (option); Relay: Self-powered Type TPS1

avail Types: TPS1, TPS2, TPS6, TPS7, TPS8, KYN28
avail Rated Voltages (kV): 12, 24, 40.5
avail Sealing: SF6 gas tank, EPDM
avail Types: GGD Type AC exchangeable, MNS LV Withdrawable
Features: Modular Construction, Compact, Reliable and economical
Maintenance-Free: Reduced maintenance & top performance
Protection Grade: Ingress protection up to IP44
Design: Compact, economical, multifunctional
Utilized Location: Outdoor use