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Main Settings

The Main Settings screen allows you to configure the fundamental electrical parameters of the monitored system. Access it from Settings > Main Settings.

[Screenshot: Main Settings screen]

Configuration Parameters

Connection Topology

Select the type of electrical connection:

Option Description
3-Phase Standard three-phase ESP motor connection (most common)
1-Phase Single-phase equipment monitoring

Nominal Voltage

The rated voltage of the system in Volts. This is the reference value used for:

  • Percentage-based event thresholds (e.g., "10% under voltage" means 10% below this value)
  • Voltage unbalance calculations
  • Motor load calculations

Typical values:

  • ESP motors: 1,000--4,000 V (commonly 1,950 V)
  • Surface equipment: 380--480 V

VT Ratio

The Voltage Transformer ratio. This converts the measured secondary voltage back to the actual primary (system) voltage.

Example: If your VT steps down 1,950 V to 110 V, the VT ratio is 1950/110 = 17.73

Nominal Current

The rated current of the system in Amperes. This is the reference for:

  • Overcurrent and undercurrent thresholds
  • Motor load percentage calculation
  • Current unbalance calculations

CT Ratio

The Current Transformer ratio. This converts the measured secondary current back to the actual primary current.

Example: If your CT steps down 100 A to 5 A, the CT ratio is 100/5 = 20

Clamp Type

The type of current measurement device:

  • Standard CT (Current Transformer)
  • Rogowski coil
  • Hall-effect sensor

Frequency

The nominal system frequency in Hz. For VFD-driven ESP motors, this is typically variable between 40 Hz and 70 Hz.

This value is used as the reference for:

  • Frequency deviation event thresholds
  • Harmonic frequency calculations
  • Motor speed calculations

Saving Settings

After changing any setting, tap Save to apply the changes. Settings are stored in a configuration file and persist across reboots.

Important: Changing the nominal voltage, current, or CT/VT ratios will affect all percentage-based calculations and event thresholds. Verify that event thresholds are still appropriate after changing these values.