GE IC693PTM101 Power Measurement Modules
Programmable Controllers
The Power Transducer Module (PTM) and Power Synchronization and Measurement (PSM) module
measure and calculate critical data for control of electrical power systems and synchronization of
power grids. Both the PTM and PSM connect to user supplied current and potential transformers,
which translate power grid signals to proportionate, low-level signals for measurement and analysis.
The PTM module is not intended to provide a protective relay function or be used for energy billing
purposes. The PSM module provides ANSI protective relay calculations and revenue grade monitoring for a complete genset, paralleling switchgear or infrastructure management solution. Both the
PTM and PSM consist of a processing module that plugs into the PLC backplane, an interface module
for field wiring connections, and cables to interconnect the two modules. The PTM and PSM can be
used with Wye or Delta type three-phase power or with single-phase power systems.
Power Measurement Modules
IC693PTM101 IC694PSM001
Product Name
Power Transducer Module Processing Module interface
board (a panel mounted circuit board). This board interfaces between
the Power Transducer module and the input transformers (current
and potential), 1.0 meter Interface cable that connects the module
to the Interface board.
Power Synchronization and Measurement Module and Interface
Module (a panel mounted terminal block). The interface module
translates power grid signals from external, user supplied potential
and current transformers (PT’s and CT’s) to low voltage signals
suitable for the processing module. 2.0 meter Interface cables
connect the processing module to the Interface module.
Lifecycle Status Mature Active
Module Type Power Transducer Modules Power Synch and Measurement Module
Input Voltage Range 10-120 VAC (nominal) 20-600 VAC (nominal)
Power Measurement
Configurations
Grids Circuits
1 0
0 up to 4
Grids Circuits
2 0
1 up to 3
0 up to 6
Current Input Range 0 to 7.5 Amps RMS (5 A RMS nominal) 0 to 7.5 Amps RMS (5 A RMS nominal)
Frequency Range 35Hz to 70Hz 40Hz to 70Hz
Output Rating N/A 150 VAC/VDC, 1 A
Number of Outputs 0 1 (provided as redundant, isolated, solid-state contacts)
Data
Data availability
• Data calculation rate: 20ms @ 50Hz, 16.67ms @ 60Hz
• Data latency: 15ms @ 50Hz, 16.67ms @ 60Hz
Measured Data
• RMS voltage of phase A, B, and C (in Volts x 10)
• RMS currents of phase A, B, C, and Neutral (in Amperes x 1000) for each grid
• DC component of measured RMS voltages (in Volts x 10)
• Frequency of phase A grid 1 (in Hz x 100)
• Phase angle between phase A grid 1 and phase A grid 2 (in degrees x 10)
Power and Energy Data
• Active and reactive power reported per phase and total in Watts, Volt-AmperesReactive (VAR)
• Active and reactive total energy consumption in Watt-Seconds and VoltAmperes-Reactive-Seconds (updated once per second), re-settable by the user
• Total power factor
• Average real and reactive power consumption (sliding 15 minute window
updated once per second)
Data availability
• Data measurement rate: 20ms @ 50Hz, 16.67ms @ 60Hz.
• Data latency: 8ms
Measured Data
• RMS voltage of phase A, B, and C (in Volts x 10)
• RMS currents of phase A, B, C, and Neutral (in Amperes x 1000) for each grid
• DC component of measured RMS voltages (in Volts x 10)
• Frequency of phase A grid 1 and phase A grid 2 (in Hz x 100)
• Phase angle between phase A grid 1 and phase A grid 2 (in degrees x 10)
Calculated Data
• Real and reactive power reported per phase and total in Watts, Volt-AmperesReactive (VAR)
• Real and reactive total energy consumption, integrated over the past 1-second,
in Kilo Watt-Hours (kWh) and Kilo Volt-Amperes-Reactive-Hours (kVARh)
• Total power factor
• Average real and reactive power consumption (sliding 15 minute window
updated once per second)
Status and Diagnostics
• Module Heartbeat (indicates module health)
• Utility Phase A voltage present
• Phase polarity valid
• Voltage measurements valid
• Current measurements valid
• Module Heartbeat (indicates module health)
• Field connection OK
• Any grid alarm (single bit indication of power grid health)
• Grid Voltage fault
• Grid Current fault
• Mixed Polarity fault
• ANSI Protection Relay Calculations
Grid Synchronization (ANSI 25)
Phase Shift OK
Voltage Difference OK
Frequency Difference OK
Close Relay OK
Under Voltage alarm (ANSI 27)
Reverse Power alarm (ANSI 32)
Negative Sequence alarm (ANSI 46)
Over Current alarm (ANSI 50)
Over Voltage alarm (ANSI 59)
VA Imbalance alarm (ANSI 60)
Under Frequency alarm (ANSI 81U)
Over Frequency alarm (ANSI 81O)
Internal Power Used 400 mA @ 5 VDC 190 mA @ 5 VDC
