ABB LDMTR-01
ABB LDMTR-01
ABB LDMTR-01
ABB LDMTR-01
ABB LDMTR-01

ABB LDMTR-01 | Load Demand Management Transducer

  • Brand:​ ABB
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    Model:​ LDMTR-01
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    Product Type:​ Load Demand Management Transducer
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    Series:​ Generator Control
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    Core Function:​ Measures electrical parameters (kW/kVAR) for load sharing and power management in multi-generator systems.
  • ••
    Key Specs:​ Active/Reactive power measurement, transducer output, load sharing.
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Description

LDMTR-01: Product Overview
The LDMTR-01 is a Load Demand Management Transducer designed for ABB’s generator control systems, specifically for applications requiring precise measurement of electrical parameters in paralleled generator sets. This transducer functions as the measurement and signal conditioning unit that provides accurate active power (kW) and reactive power (kVAR) readings to the load sharing controller. Installed in generator control panels, its primary role is to convert signals from current and voltage transformers into standardized analog or digital signals representing real and reactive power values for load distribution control.
The transducer operates by continuously monitoring three-phase current and voltage inputs from the generator output. It calculates true power (kW) and reactive power (kVAR) values using sophisticated signal processing algorithms, then outputs these values as analog signals (typically 4-20mA or 0-10V) or digital communications for use by the load sharing controller. The module provides electrical isolation between the high-voltage power system and the low-voltage control system, ensuring safe and reliable operation in demanding power generation environments.

ABB LDMTR-01

ABB LDMTR-01

LDMTR-01: Technical Specifications
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    Model Number:​ LDMTR-01
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    Manufacturer:​ ABB
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    Product Type:​ Power Transducer
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    Inputs:​ 3-phase voltage (0-150V AC) and current (0-5A AC)
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    Measured Parameters:​ Active Power (kW), Reactive Power (kVAR)
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    Outputs:​ Analog outputs (4-20mA or 0-10V) for kW and kVAR
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    Accuracy:​ Typically ±0.5% of reading
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    Frequency Range:​ 45-65 Hz
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    Power Supply:​ 24V DC or 110/230V AC (depending on configuration)
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    Isolation:​ 2-4 kV between input/output/power supply
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    Operating Temperature:​ -25°C to +70°C
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    Mounting:​ DIN rail mounting
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    Certifications:​ UL, CE, IEC standards

    ABB LDMTR-01

    ABB LDMTR-01

Core Features & Customer Value
The transducer’s high-accuracy power measurement ensures precise load sharing between paralleled generators, preventing overloading and ensuring optimal fuel efficiency. For system operators, this translates to extended generator life, reduced maintenance costs, and stable system operation. The wide operating temperature range and robust construction make it suitable for installation in harsh environments like marine engine rooms or industrial power plants.
The electrical isolation provides crucial protection for the control system from power system transients and faults. The transducer’s fast response time enables rapid load sharing adjustments during sudden load changes, maintaining system frequency and voltage stability. For system integrators, the standardized analog outputs simplify integration with various load sharing controllers and monitoring systems.
Typical Applications
In marine power systems, the LDMTR-01 provides accurate power measurements for each generator in a paralleled set, enabling the load sharing controller to maintain equal loading across all units during dynamic load changes such as thruster operation or large motor starting.
In standby power systems for critical facilities like hospitals or data centers, the transducer ensures precise load sharing between multiple generators, providing stable power during utility outages and enabling efficient load management based on generator capacity.

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