WaterSight - Pumps Configuration

Product(s): WaterSight
Version(s): 10.00.
Area: Documentation

Overview

Administration page used to import pump information into WaterSight. 

It is possible to import pump information through a configuration Excel file (template file available for download in the Digital Twin Setup page) or to manually add a pump and its characteristics. After uploading pump information, it is also possible to edit, delete or copy information, using the available buttons located above the table. 

Note: To enable the Copy, Edit, and Remove options, please select a pump first (row in the table). When clicking in a specific pump (table row) the fields available for editing will appear below the pump configuration table.

Curves

There are four optional curves that can be defined for pumps to establish relationships used for graphing and analysis. 

Curve definitions must follow these rules:

  • Minimum of 5 points (to allow reasonably accurate interpolation) 
  • No negative values 
  • No duplicate flow (or speed) values.

If points are entered out of order, they will be sorted by flow (or speed in the case of the Speed Efficiency Curve). 

Pump Configuration Table

Note: Minimum required fields are marked with an asterisk.

Column Description
Name* Required field. Pump display name that will appear in the software. The name should match the label of the pump in the  uploaded WaterGEMS model, if applicable.

Pump Station The name of the associated Pump Station, if applicable. This name should exactly match the name in the Pump Stations Configuration page.
Design Flow

The flow rate for the design operating point chosen when sizing the pump. The design operating point might not fall directly on the manufacturer flow/head curve. The Design Point will be displayed on graphs for reference.

Design Head The pump head for the design operating point chosen when sizing the pump. The design operating point might not fall directly on the manufacturer flow/head curve. The Design Point will be displayed on graphs for reference.
BEP Flow

Best Efficiency Point. The flow rate at which the pump efficiency is highest. The Best Efficiency Point will be displayed on graphs for reference.

BEP Pump Efficiency

Best Efficiency Point. The maximum efficiency of the pump. The Best Efficiency Point will be displayed on graphs for reference.

Motor Efficiency The motor efficiency, which is assumed to be constant across all flows and speeds. Efficiencies of the pump and variable frequency drive are specified separately.
Full Speed Value

Only applicable for pumps with variable frequency drives. The value that the Pump Speed Signal will return when the Variable Frequency Drive is operating at full speed.

If speed is measured in percent, this will be 100. If speed is measured as a decimal between 0 and 1, this will be 1. If speed is measured in frequency, this may be 60 Hz or similar. If speed is measured in revolutions per minute, this may be 1800 RPM or similar.

Values from the Pump Speed Signal will be divided by this Full Speed Value to be converted into a percentage.

Suction Signal

Indicates whether a signal for the suction conditions of the pump have been specified. The suction signal may either be a pressure signal or a level signal, such as the level of a clearwell that the pump draws from. Suction and discharge signal values will be converted to hydraulic grade and subtracted to determine the pump head at each signal timestep.

If no signal is provided, the suction pressure will be assumed to be 0 for pump head calculations.

Discharge Signal Indicates whether a signal for the discharge conditions of the pump have been specified. The discharge signal may either be a pressure signal or a level signal, such as the level of a nearby tank downstream of the tank. Suction and discharge signal values will be converted to hydraulic grade and subtracted to determine the pump head at each signal timestep.

Flow Signal

Indicates whether a signal for the flow rate of the pump have been specified.

If no signal is provided, any graphs graphs and calculations that depend on flow rates will not be displayed.

Power Signal

Indicates whether a signal for the pump power has been specified. 

If no signal is provided and a Power Curve is available, the power will be estimated for each timestep based on the flow and head.

Status Signal

Indicates whether a signal for the pump status has been specified. If available, this will be used to filter analytical results to when the specified pump is active.

Speed Signal Indicates whether a signal for the pump speed has been specified. The speed signal may be in units of percentage, or a decimal from 0 to 1, or frequency, or revolutions per minute. The pump speed signal values will be divided by the Full Speed Value to be converted into a percentage.
Head Curve Indicates whether a pump head curve has been specified. This is a relationship of pump flow to pump head provided by the manufacturer.
Efficiency Curve Indicates whether a pump efficiency curve has been specified. This is a relationship of pump flow to pump efficiency provided by the manufacturer. Efficiencies of the pump motor and variable frequency drive are specified separately.
Power Curve Indicates whether a pump power curve has been specified. This is a relationship of pump flow to pump power provided by the manufacturer. This curve represents the power applied to the pump itself, and does not include power consumed by the motor and variable frequency drive.
Speed Efficiency Curve Only applicable to pumps with variable frequency drives. Indicates whether a speed efficiency curve has been specified. This is a relationship of variable frequency drive speed to drive efficiency. Efficiencies of the pump and motor are specified separately. If no speed efficiency curve is provided, the variable frequency drive will be assumed to be 100% efficient.

The colored points in the table indicate the following:

 Signal or curve is configured
 Signal or curve is not configured
 Signal or curve is not applicable
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