Tyco 1540 manual Full Scale Current, Potential Transformer Primary Voltage

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3.5 Full Scale Current

0240

0340

0440

0640

1000

1540

This parameter is the value of nominal Full Scale Currents that will be displayed as the Line Currents. This screen enables the user to display the Line Currents inclusive of any transformer ratios. The values displayed represent the current in amps. For example setting 800 on this screen will cause the display to indicate 800 amps when the nominal maximum (typically 5A or factory build option of 1A) current flows through the transducer current inputs.The maximum value is as specification.

 

Press >> to accept the present value and move on to the next

 

Set-up screen (Section 3.6 Potential Transformer Primary

 

Voltage).

 

To change the Full Scale Current, press and change the

 

current value as detailed in Section 3.2 Number Entry

 

Procedure. If the presently displayed current, together with the

 

full scale voltage value, results in an absolute maximum power

 

(120% of nominal current and voltage) of greater than 360

 

Megawatts, the range of the most significant digit will be

 

restricted.

Edit

The Maximum Power restriction of 360 Megawatts refers to

 

120% of nominal current and 120% of nominal voltage, i.e. 250

 

Megawatts nominal system power.

When the least significant digit has been set, pressing the >> key will advance to the Full Scale Current Confirmation stage.

The minimum value allowed is 1. The value will be forced to 1 if the display contains zero when the >> key is pressed.

3.6 Potential Transformer Primary Voltage

0240

0340

0440

0640

1000

1540

This value is the nominal full scale voltage which will be displayed as L1-N, L2-N and L3-N for a four wire system, L1-2, L2-3 and L3-1 in a three wire system or system volts for single phase. This screen enables the user to display the line to neutral and line to line voltages inclusive of any transformer ratios. The values displayed represent the voltage in kilovolts (note the x1000 indicator). For example, on a 2.2kV system with 110V potential transformer secondary, set 2.200 at this screen.

If there is no potential transformer (PT) in the system, i.e. the voltage terminals are connected directly to the metered voltage, leave this value unchanged and skip this set up step.

If the PT primary and secondary values are changed and it is desired to revert to a set-up with no PT, then set both PT primary and secondary values to the nominal maximum voltage for the Integra transducer.

24 Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03

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Contents Energy Division Crompton Switchboard Integra Contents Setting up Specification Maintenance Appendix a CE Declaration of Conformity Basis of measurement and calculations Serial CommunicationsIntroduction THDUnit Characteristics 3 0440Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Default display Demand Calculation Maximum PowerSecondary Voltage Analogue Output Option RS485 Serial OptionPulse Output Option Start Up Screens Display ScreensLayout System Screen Line to Neutral Voltage %THD System %THD ScreenLine to Neutral Voltages Line Currents Line to Line VoltagesLine to Line Voltages %THD Line Currents %THD Neutral Current, Frequency and Power FactorPower Active Energy kWh Reactive Energy kVArhOver Range DemandMaximum Demand KWh and kVArh Display Range Setting upError Messages Number Entry Procedure Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Access with Password Protection AccessAccess with No Password Protection Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Changing the Password Full Scale Current Potential Transformer Primary VoltageIntegra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Potential Transformer Secondary Value Demand Integration Time Resets Pulsed Output, Pulse Duration Pulse Rate 12 RS485 Baud Rate 13 RS485 Parity Selection 14 RS485 Modbus Address Reverse Operation Analogue Output Set UpSecond Channel Reduced output rangeReading Top A1rt or A2rt Analogue Output Scaling ExampleReading A1r or A2r Reading Bottom A1rb or A2rbSummary Power FactorOutput Bottom A1ob or A2ob USA Reading European Convention North American Convention Output Phase Angle L1-L2 Calculated Parameter Number Wire Reading Parameter Selection A1r or A2rReading Top A1rt or A2rt Reading Bottom A1rb or A2rb Specification Display Only VersionsDisplay/Transducer Combined 0240, 0340, 0440 121 240V L-L 70.1 139V L-N Reference conditions of influence quantities Measuring RangesAccuracy Display/Tranducer Combined 1000 Auxiliary Power Supply Reference conditions Screen Nominal range of use of influence quantities for measurandsFunctional ranges StandardsSerial Communications Option Modbus RS485Active Energy Pulsed Output Option Integra 1540 OnlyBasis of measurement and calculations Reactive and Apparent PowerEnergy resolution Total Harmonic Distortion 1540 only Modbus Implementation Serial CommunicationsRS485 Port Modbus or JC N2 Input Registers Parameter Modbus Start Modbus Holding Registers and Integra set up High Low ByteMetasys release requirements RS485 Implementation of Johnson Controls MetasysApplication details Design considerations Support for Metasys IntegrationSupport for Crompton Integra operation Metasys N2 application Integra 1560/1580 Point Mapping tableMaintenance Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03 Integra 1540, 1000, 0640, 0440, 0340, 0240 Issue 1 04/03

1540 specifications

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