Zig-Zag Liquid Filled Pad Mounted Grounding Transformer 30kV 33kV 34.5kV

  • Zig-Zag Liquid Filled Pad Mounted Grounding Transformer 30kV 33kV 34.5kV
Key attributes
Brand Vziman
Model NO. Zig-Zag Liquid Filled Pad Mounted Grounding Transformer 30kV 33kV 34.5kV
Rated frequency 60Hz
Rated capacity 50000kVA
Series Z
Product descriptions from the supplier
Description
Product Description

5000 KVA Zig Zag Grounding Transformer Pad Mounted Liquid Filled 27600GrdY CSA ANSI IEEE Standards UL/cUL Certification

Summarization

The Zig-Zag grounding transformer is a core grounding device that protects system components from fault currents by establishing an artificial neutral point for grounding resistors. As a specialized Pad Mounted grounding transformer, it blocks positive and negative sequence currents while enabling zero sequence currents during faults, ensuring reliable system protection. This liquid-filled 5000 KVA model, a high-performance Zig-Zag grounding transformer, serves as a cost-efficient high-impedance grounding solution. Vziman’s precision-engineered product meets CSA, ANSI, IEEE standards and holds UL/cUL certification, delivering decades of durability in harsh industrial environments where Pad Mounted grounding transformer is widely deployed.

Advantages of Zig-Zag Grounding Transformer

  • For ungrounded systems, the Zig-Zag grounding transformer (available as a Pad Mounted grounding transformer) creates a stable neutral point, enabling steady grounding and safer operation.
  • In systems with nonlinear loads, this Zig-Zag grounding transformer reduces triplen harmonic currents, enhancing power quality—an advantage that makes the Pad Mounted grounding transformer variant ideal for industrial scenarios.
  • Compared to other grounding transformers, Zig-Zag grounding transformer features a simpler design and smaller size, resulting in lower costs, especially for the space-saving Pad Mounted grounding transformer model.
  • The Zig-Zag grounding transformer balances unbalanced loads across phases, reducing equipment strain and improving system performance, a key benefit for industrial-grade Pad Mounted grounding transformer.
  • Controlled zero-sequence current paths of the Zig-Zag grounding transformer limit fault current in line-to-ground faults, further boosting operational safety of the Pad Mounted grounding transformer.
  • Its compact and efficient design makes the Zig-Zag grounding transformer perfect for space-constrained installations, which is a core advantage of the Pad Mounted grounding transformer.
  • With simpler structure and fewer windings, Zig-Zag grounding transformer boasts higher reliability and lower maintenance demands, reducing lifecycle costs for the Pad Mounted grounding transformer.
  • The Zig-Zag grounding transformer is versatile for industrial power distribution, grounding, and neutral formation in low/medium-voltage systems, and the Pad Mounted grounding transformer version offers enhanced installation flexibility.

Zig-Zag Grounding Transformer Main data

Transformer Configuration Liquid Filled Pad Mounted
Transformer Feed Type Radial Feed
Operation Grounding Transformer
Phase Three Phase
Capacity 5000 KVA
Vector Group YnD
Primary Voltage 27600GrdY/15935
Primary BIL 150 KV
Frequency 60 Hz
Temperature Rise 65°C
Insulation Rating Class A Insulation - 105°C
Cooling Class KNAN; Self-Cooled
Efficiency Standard(s) Meets DOE 2016 Standards, Meets CSA Standards Meets ANSI/IEEE Standards
K-Factor Rating (Harmonic Mitigation) K-1 (Standard)
Winding Material Copper
Ambient Temperature Rating 45°C
Enclosure Rating NEMA 3R Weatherproof Wiring Cabinet, Sealed Tank
Dimensions* 65''-W x 60''-D x 62''-H
Total Weight (Liquid Filled)* 4,520 Lbs
Efficiency % 99.00%
No Load Loss (in watts) +/- 400W

Advantages of Zig-Zag Grounding Transformer

  • Voltage & Capacity Adaptation:The Zig-Zag grounding transformer (liquid-filled type) is suitable for low and medium-voltage power systems (typically 10kV-35kV), with rated capacities matching the 5000 KVA specification and above. As a Pad Mounted grounding transformer, it is designed to adapt to the voltage level and load capacity of outdoor distribution networks, ensuring stable neutral point grounding performance.
  • Installation Environment Requirements:The Pad Mounted grounding transformer (Zig-Zag structure) is engineered for outdoor installation, capable of withstanding ambient temperatures ranging from -25℃ to 55℃ and relative humidity ≤95%. The liquid-filled insulation system of the Zig-Zag grounding transformer ensures reliable operation in open-air environments with dust, light rain, and moderate wind, without being affected by short-term harsh weather.
  • Altitude Limitation:This Zig-Zag grounding transformer, as a standard Pad Mounted grounding transformer, is suitable for installation at altitudes not exceeding 1000m. For areas above 1000m, derating treatment or customized insulation design is required to compensate for the impact of low air pressure on the cooling efficiency and insulation performance of the Pad Mounted grounding transformer.
  • System Grounding Mode Matching:The Zig-Zag grounding transformer is applicable to ungrounded or high-impedance grounded power systems, where it establishes an artificial neutral point for grounding resistors or arc suppression coils. The Pad Mounted grounding transformer variant is particularly suitable for industrial and commercial distribution systems that require compact outdoor grounding solutions and strict fault current control.

Pad Mounted grounding transformer Factory product photos

Zig-Zag Liquid Filled Pad Mounted Grounding Transformer 30kV 33kV 34.5kV

FAQ
Q: What voltage adaptation advantages do the Zig-Zag grounding transformer and Pad Mounted grounding transformer offer?
A:

The Zig-Zag grounding transformer (liquid-filled type) is perfectly matched with the Pad Mounted grounding transformer structure for medium-voltage power systems. This combination ensures stable artificial neutral point formation in 30kV-34.5kV grids, effectively limiting fault currents and suppressing harmonics. The Pad Mounted grounding transformer’s compact outdoor design pairs with the Zig-Zag grounding transformer high-impedance grounding performance, making it ideal for medium-voltage industrial parks, outdoor substations, and commercial distribution networks.

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