# Powerful Testing Tools. All in One Place.

With the TestGuy Pro Dashboard, you get access to our entire suite of software tools and references.

##### AC Voltage Calculator
Convert between peak, peak-to-peak, rms, and average AC voltage quantities.
##### Ansi Device Numbers
Quick search ANSI standard device numbers and their definition.
##### Bolt Torque Values
Look up the recommended torque value for various types and grades of U.S. standard fasteners.
##### Breaker MVA Calculator
Find MVA rating of a circuit breaker using nameplate ratings.
##### Digitrip GF Pickups
Find expected Ground Fault pickup values for most Digitrip RMS trip units.
##### Electrical Symbols
Browse common electrical diagram symbols or search dynamically by name.
##### Fall of Potential
Electronic form for saving fall of potential test data.
##### Insulation Resistance Values
Correct insulation resistance (IR) test results to 20°C or 40°C and lookup recommended values.
##### Loss of Excitation
Calculate useful values for testing GE & SEL generator protection relays.
##### Maintenance Frequency
Get recommended maintenance service intervals for power distribution equipment.
##### Motor Calculations
Find FLA and torque for electric motors or convert between Horsepower and Watts.
##### My Progress
Review past exam scores and get stats on your progression.
##### Ohm's Law Calculator
Calculate the relationship between voltage, current, and resistance or the relationship between power, voltage, and current.
##### Percent Error Calculator
Calculate percent error with calibrated and actual results.
##### Power Factor Calulations
Calculate power factor for single- and three-phase circuits and find correction capacitor.
##### Power Triangle Calculator
Find PF, VAR, W and VA with any two known quantities or review power triangle formulas.
##### TOC/IDMT Calculator
Calculate the protection trip time (TOC/IDMT) according to IEC 60255 and IEEE C37.112-1996 protection curves.
##### Tech Quiz
Distraction free testing environment.
##### Terms and Definitions
A complete library of terms related to electrical testing, with dynamic search.
##### Test Unit Converter
Convert between common test values such as Mega to Kilo and Base to Micro.
##### Transformer Calculations
Get recommended test values, find TTR and load currents for single- and three-phase transformers.
##### Trip Unit TCC Calculator
Generate test currents and generic trip times for LSIG trip units, includes tolerance for pickup and time values.
##### Voltage Drop Calculator
Estimate the voltage drop of an electric circuit based on the wire size, distance, and anticipated load current.
##### Wire Size Calculator
Calculate the appropriate low-voltage wire size based on NEC Article 310.15.

## Optimized for Mobile

No extra software to install and nothing to keep updated. All of our tools run directly in your web browser - on nearly any device!