• 75 kVA ~ 2500 kVA UL-Listed Explosion-Proof Standard Pad-Mounted Transformer
75 kVA ~ 2500 kVA UL-Listed Explosion-Proof Standard Pad-Mounted Transformer
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Model
ZGS-2500-33/0.4
ZGS-1000-33/0.4
ZGS-160-33/0.4
ZGS-2500-11/0.4
ZGS-1000-11/0.4
ZGS-160-11/0.4
Basic info
Brand Vziman
Model NO. 75 kVA ~ 2500 kVA UL-Listed Explosion-Proof Standard Pad-Mounted Transformer
Rated frequency 50/60Hz
Rated capacity 2500kVA
Primary voltage 33kV
Secondary voltage 0.4kV
Series ZGS
Product Detail

Description:

The UL-Listed Explosion-Proof Standard Pad-Mounted Transformer is an explosion-proof oil-immersed pad-mounted transformer certified by Underwriters Laboratories (UL), designed specifically for hazardous environments. Its core certifications and standards include:

  • UL Certification: Complies with UL 506 (Transformer Standard) and UL 1203 (Explosion-Proof Equipment Standard), ensuring safe operation in dangerous environments.
  • Explosion-Proof Rating: Typically marked as Class I, Division 1 (for flammable gas environments) or Class II, Division 1 (for combustible dust environments), adhering to the National Electrical Code (NEC 500/505).
  • Structural Standards: Based on IEEE C57.12.20 (American Pad-Mounted Transformer Standard) and NEMA 3R/4X (Enclosure Rating Standards).

Core Design Features:

  • Explosion-Proof Enclosure: Constructed with cast aluminum or stainless steel, joint surfaces and gaps strictly comply with UL 1203 (e.g., gap ≤0.15mm) to prevent flame propagation during internal arcing.
  • Pressure Relief System: Equipped with dual redundant pressure relief valves (operating pressure 55±5kPa) and spark arrestors to prevent tank rupture and secondary explosions.
  • Oil-Immersed Insulation: Utilizes high-flash-point insulating oil (e.g., silicone oil with flash point >300°C) or β-fluid (complying with UL 3406) to reduce fire risks.
  • Sealing Rating: Features fully welded construction with corrugated tanks, passing UL 50E explosion tests (methane-air mixture explosion test) to prevent ingress of combustible substances.
  • Electrical Connections: Equipped with explosion-proof cable glands (UL 1203 certified) and Ex d-type flameproof joints to ensure sparks at terminals do not ignite ambient gases.

Functions and Core Applications:

  • Safe Power Supply: Enables electrical energy conversion in flammable environments while preventing sparks or high temperatures from triggering explosions.
  • Fault Isolation: Contains internal faults (e.g., arcing, oil decomposition) within the enclosure through explosion-proof design.
  • Environmental Adaptation: With IP66 protection rating, resists ingress of corrosive gases and dust.

Parameter:

Know your supplier
Vziman
Zhejiang Vziman Electric Group Co., Ltd. is a high-tech enterprise specializing in R&D, manufacturing, and service of power electrical equipment. Committed to innovation, quality, and customer satisfaction, it supplies smart solutions for global power sectors, covering grid construction, new energy, and industrial distribution. Core Business • Switchgear (GIS, circuit breakers, Recloser, Load break switch) • Distribution equipment (transformers, RMU, smart terminals) • Power automation systems • Engineering services (installation, maintenance, consulting) Technical Strength • Provincial R&D center, multiple patents • Modern production, ISO/GB/IEC/CE/UL certified • High capacity, large-scale delivery support Market & Vision Serves State Grid, Southern Grid, and global projects (Asia, Africa, Europe, etc.). Aims to lead in smart grids and new energy, promoting sustainable energy development.
Main Categories
High voltage
Business Type
Design/Manufacture/Sales
Highest Annual Export (USD)
$150000000
Professional Experience
3 years
Workplace
10000m²
占位
占位
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