RHM International, LLC

Innovative High Reliability High Voltage Equipment for the Power Grid

Menu
  • Home
  • Products
    • RHM International current transformer typesCurrent Transformers
      • LRGBJ Series – up to 550kV
      • LRGBJ-ZH Cascade Series – above 220kV
      • LRGBJ – ZHD Series for High Currents
      • GDGL Optical/Electronic Series
      • Shunt Capacitor Bank Applications
    • Dry Insulation high voltage transformer bushings by RHM InternationalTransformer Bushings
      • RIF® – FGRBW Tough Series
      • Cascade RIF® for EHV Applications
      • Built-In Insulation Monitoring
    • RHM International high voltage wall bushingsWall Bushings – Special Bushings
      • STB Wall Bushings Specifications
      • STB-L Series: Wall Bushing with CT
      • Special Bushings — Custom Designs
    • cable termination by RHM InternationalHV DRY TYPE OUTDOOR CABLE TERMINATOR
      • Cable Terminator
    • Electronic Combined Voltage and Current Transformer REVCT35-1000 Series 35 kV – 1000 kV by RHM InternationalIEC 61850 Ready and NCITs
      • BIIT™ HV MEASUREMENT BUSHING
      • Optical/Electronic Current Transformer
      • Electronic Combined VT and CT
      • Smart Monitoring
    • Close
  • Why Us
    • Company Advantages
      • Shorter Lead Time
      • Custom Designs
      • Testing Capabilities
      • Quality & Supply Chain
      • ISO 9001
    • Product Benefits
      • Outstanding Performance
      • No Maintenance
      • No Explosions
      • Easy Storage
      • Environmentally Friendly
      • Longer Life & Higher ROI
      • Sustained Higher Performance
      • Proven Track Record
    • Expertise & Assistance
    • Close
  • Technology
    • 1Our Technologies
      • HV DryShield® for CT’s & Wall Bushings
      • RIF® Insulation for Transformer Bushings & Cable Terminators
    • smart-monitoringSmart Monitoring
      • Built-in Condition Monitoring
      • Bushing based Transformer PD Monitoring
    • The-Dry-Type-RIF-Bushing_The-New-Technology-in-HV-Bushings-1Publications
      • BIIT Bushings: Intelligent HV bushings w/ integrated low power voltage and current transformers
      • HV DryShield® – A dry type HV insulation system for extreme environments
      • RIF ® bushings The paperless, dry-type bushing technology
      • The Dry Type RIF ® Bushing: New Technology in HV Bushings
      • Advances in Bushings Technology – Integrated Monitoring Systems
    • 3Product Specification Sheets
      • Current Transformers
      • Wall Bushings
      • IEEE Bushings
      • IEC Bushings
      • Cable Terminals
    • Installation & Testing
    • Close
  • Your Specs
  • HV Testing Services
  • About Us
  • Blog
  • Opportunities
  • Contact Us

Contact Us

RHM International considers all inquiries, worldwide.

For any inquiries about the products and their availability, please call or email us at:
info@rhmintl.com

RHM International
280 Clark Road
Brookline, MA 02445
USA

US production site: Hudson, NH
China production site: Beijing

Tel: 1 888 495 0008
Fax: 1 617 608 0274

info@rhmintl.com
www.rhmintl.com

Inquiry Check List

When placing an order, customer's specification needs to include:

  • Reference Standard
  • Rated voltage
  • Rated current
  • Rated frequency
  • Rated transformation ratio (current transformer)
  • Number of secondary windings (current transformer)
  • Rated output (current transformer)
  • Accuracy class(es) (current transformer)
  • Accuracy limit factor (current transformer)
  • Instrument security factor (current transformer)
  • Environmental Conditions (Altitude, Pollution Class)

If users have specific requirements, custom designs can be mutually defined in advance and products are designed according to customer's specification.

Contact Us

©2025 RHM International, LLC. All Rights Reserved. Developed by BBDS Design