Impulse Current Calibration Services
REQUEST A QUOTELeading High-Current Calibration Services for Impulse, 60 Hz & DC Testing
At Constellation PowerLabs, we specialize in low-uncertainty high-current impulse calibrations for a wide range of applications, from electrical test systems to industrial pulse setups. Our A2LA accredited calibrationlaboratories also offer on-site services to verify system performance with accuracy and reliability.
Calibration Expertise Recognized Worldwide
Our commitment to precision goes beyond test points and measurements; it includes how we deliver, manage, and support each calibration. While we support calibrations for smaller equipment in-house, our onsite team provides high current and high voltage services, combining global expertise with local responsiveness.
ISO 17025-Accredited
Our A2LA accredited calibration labs in the USA cater to both high-voltage and high-current systems.
Onsite Calibrations for Oversized or Critical Systems
We bring our technicians and equipment directly to your facility for on-site impulse current calibrations, high voltage calibrations and more.
Two Dedicated High-Voltage Laboratories
Our high-current and high voltage testing equipment handles extreme electrical levels, fast transients, and complex waveform requirements with accuracy.
Dedicated Project Coordinator for Every Onsite Job
From planning and scheduling to documentation, a single point of contact manages your entire on-site calibration process.
High-Current Impulse, 60 Hz and DC Testing Services
We provide accurate, NIST or ISO 17025-accredited calibrations for high-energy systems used in critical testing and protection applications. Every calibration includes a full certificate with before-and-after data, measurement uncertainty, environmental conditions, and waveform validation when applicable.
Our high impulse current calibration services support the reliability of operation systems used in surge protection, power distribution, welding, and industrial applications.
High-Current Testing Capabilities
- Up to 17,500 amps traceable to NIST standards
- ISO 17025 accredited up to 5,000 amps
Direct Measurement Capabilities
- Direct measurement up to 17,500 amps traceable to NIST
- DC current testing up to 10,000 amps
Common Equipment We Calibrate (including but not limited to):
- Impulse current generators
- Current transformers
- Current cycle test systems
- Welders
- High-current injection systems
- Surge testers
- Shunts and current dividers
- Rogowski coils
Our Extensive Range of High Current and High Voltage Calibration Services
As a testing and calibration lab, our services comply with national and international standards, including ISO 17025, IEEE Standard 4, IEC 60060-2, IEC 60270, ANSI Z540, 10 CFR 50, Appendix B and 10 CFR 21
Partner with Constellation PowerLabs for everything you need in high-current impulse calibrations and high-voltage testing, as we offer one of the widest scopes of calibration services in this field.
AC and DC High-Voltage Systems
AC Voltage Testing:
• Up to 1,000 kV RMS & Pk/√2 (50/60 Hz)
• ISO 17025 accredited up to 800 kV
DC Voltage Testing:
• Up to 700 kV
• ISO 17025 accredited for DC up to 450 kV
Impulse Voltage Testing Equipment
Only ISO 17025 accredited laboratory in the Americas for the following:
- Lightning Impulse (LI) testing up to 2.5 MV
- Switching Impulse (SI) testing up to 2.5 MV
- Chopped Impulse (LIC) testing up to 2.5 MV
Partial Discharge (PD) Measurement Systems
Only laboratory accredited in the Americas for this parameter:
- ISO 17025 is accredited for partial discharge testing up to 10,000 pC
- Specialized testing for high-voltage systems across industries
Motor and Generator Test Systems
- Calibration for 60 Hz motor/generator systems
- Calibration capabilities include Variable Frequency Drive (VFD) systems
Tan Delta / Capacitance Test Equipment
Our services include:
- Tan Delta Bridge measurements
- HV Capacitor testing up to 200 kV
- Tan Delta measurement for dissipation factors (DF) as low as 0.0000025
- Testing at 50/60 Hz
Our Impulse Current Calibration Capabilities
Impulse current systems operate under extreme electrical conditions, making accurate calibrations important for safety, performance, and compliance. We proudly provide onsite calibration services across the US and Canada. Whether you’re in Texas or on the border of South Carolina or North Carolina, or really anywhere in between, we’re here to support your high-voltage and high current environments where equipment must remain installed, operational, and within specification.
- Support for Minimized Downtime: Maintain productivity with field testing and calibration services that eliminate the need for equipment removal or extended shutdowns.
- Lab-Grade Precision, Delivered Onsite: We deploy calibrated, accredited equipment and highly trained personnel directly to your facility, maintaining the same standards expected in regulated industries.
Our impulse current calibration solutions are ideal for fixed-position impulse test systems, power grid testing infrastructure, or facilities with regulatory/access limitations.
Industries We Serve
| Aerospace & Defense | Power Utilities and Grid Operators | Nuclear Power Facilities | Transformer, Switchgear & Protection Manufacturers | Transportation, Rail & Electrified Infrastructure | Testing & Research Laboratories |
|---|---|---|---|---|---|
| Calibration for lightning strike simulation, avionics, and system survivability. | Supporting overvoltage protection, fault testing, and grid stability. | Providing high-integrity accredited calibration for safety-related electrical systems. | We verify performance under impulse and high-current conditions. | Safeguarding performance of high-voltage traction and control systems. | NIST-traceable calibration for development, type testing, and certification. |
Fully Compliant Calibration Services
Accurate calibration is critical in high-voltage and current applications where safety, compliance, and system performance are at stake. From Fluke calibration services to impulse current calibrations, we support regulatory compliance, equipment qualification, and internal quality programs, all in accordance with internationally recognized standards to provide consistency and reliability.
Our calibrations align with:
- ISO 17025 accredited calibrations
- IEEE Standard 4
- IEC 60060-2
- IEC 60270
- ANSI Z540
- 10 CFR 50 / Appendix B
All calibration data is traceable to NIST standards and suitable for global certifications.
Prevent Downtime with Accurate Impulse Current Calibrations
Accurate impulse current calibrations are critical to avoiding unplanned outages and maintaining test integrity. We provide on-site, NIST-traceable calibration services to help you keep operations running without disruption.
Our extensive testing and metrology calibration services span the U.S., Canada, and beyond. Get a formal quote or schedule service today!