Grounding Transformers
Henka’s Grounding Transformers create a neutral for three-phase, four-wire systems, stabilizing voltage and reducing harmonic distortion. Using Zig-Zag configurations, they improve grounding performance, limit fault currents, and enhance system reliability in industrial applications.
A solid foundation for electrical stability and safety in your power system, ensuring peak performance.
Grounding Transformers
Henka’s Grounding Transformers create a neutral for three-phase, four-wire systems, stabilizing voltage and reducing harmonic distortion. Using Zig-Zag configurations, they improve grounding performance, limit fault currents, and enhance system reliability in industrial applications.
A solid foundation for electrical stability and safety in your power system, ensuring peak performance.
Technical Specifications
Tailor-Made Transformer Solutions
Henka’s Grounding Transformers come in Zig-Zag or Wye-Delta configurations with continuous and short-time neutral current ratings (2, 5, 10, and 30 seconds). Designed for voltages up to 46kV (250kV BIL), they feature air-cooled copper or aluminum windings and can be solid or resistance grounded. Available in Polyester Resin Dipped, VPI/VPE (220°C), or Cast Coil (180°C) insulation with temperature rise options of 150°C, 115°C, or 80°C, they meet NEMA ST-20 sound levels. Standard Type 1–12 enclosures are finished in ANSI 61 grey, with stainless steel options.
CSA-certified, UL-listed, and ISO 9001:2015 compliant, they offer thermal sensing, anti-condensation heaters, current transformers, and anti-vibration pads for reliable system grounding.
TypE:
Rating:
Capacity:
Cooling:
Frequency:
Fuse:
Resistor:
Capacitor:
Conductors:
Grounding:
Temp. Rise:
Impregnation:
Overload Capability:
Saturation Level:
Efficiency:
K-Factor:
Config:
Enclosure Type:
Enclosure Finish:
Loadcenter:
Primary Breaker:
Mounting:
Warranty:
Quality System:
Insulation System:
- Polyester Resin Dipped and Baked: 220°C
- VPI/VPE: 220°C
- Cast Coil: 180°C
Testing:
—
Voltage Class:
- Up to 46kV (250kV BIL)
Secondary Voltage:
—
Taps:
—
Certifications:
- CSA Certified
- UL Listed
Reference Standards:
- CSA C22.2 No 47
- CSA C9
- IEEE C57.31
- IEEE C57.12.91
- NEMA ST-20
Optional Features & Accessories:
- Suitable for 50Hz Nominal Frequency
- Thermal Sensing & Indication
- Thermometers (Analog/Digital)
- Thermostat Alarm / Trip (N.O. /N.C. Contacts)
- Anti-Condensation Strip Heaters
- External Anti-Vibration Pads
- Neutral CT Wired To Shorting Terminal Blocks
- Phase CT’s Wired To Shorting Terminal Blocks
- 304 or 316L Stainless Steel Enclosure
- Custom Enclosure Finish (Color)
Contact us for a custom solution or explore our product range
Driving Success
with Henka Power
Reliable Transformers for Every Industry
At Henka, we believe power isn’t just about equipment — it’s about delivering solutions that fuel your success. Our commitment goes beyond manufacturing transformers; we provide dependable, efficient systems tailored to meet your project’s exact requirements. We start by understanding your specific needs, ensuring every detail is considered. Whether it’s a complex industrial setup or a commercial application, our team of experts guides you from consultation through delivery. With Henka, you gain more than just reliable transformers — you gain a partner dedicated to your long-term operational success.
Quality Support
Every Step of The Way
Professional Advice that You Can Count On
At Henka, our commitment doesn’t end with delivering high-quality transformers — it extends to providing exceptional customer support tailored to your needs. We understand that reliable power solutions require more than great products; they need responsive, knowledgeable assistance every step of the way. From the moment you reach out, our dedicated support team works closely with you to address your questions, solve challenges, and provide expert guidance. We’re here to ensure your operations run smoothly.
