7KG7750-0AA01-0AA0/CC SIEMENS

7KG7750-0AA01-0AA0/CC Siemens Basis unit

Brand：SIEMENS Model number：7KG7750-0AA01-0AA0/CC

Country of origin: Germany Product weight：0.55kg

HS code：8517623990

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Product Details：

Product Dimensions：

The SICAM P50 is a multifunctional power meter that provides real-time acquisition of electrical quantities. It acts as a comprehensive measurement tool for power quality analysis, energy management, and system monitoring. The unit measures fundamental electrical values such as voltage, current, power factor, active and reactive power, frequency, and harmonic distortion. Equipped with advanced digital processing capabilities, it integrates smoothly into power automation systems, supervisory control and data acquisition systems, and energy management software via standardized communication protocols.

Product Parameters

Product Family: Siemens SICAM P50 Series
Full Order Code: 7KG7750-0AA01-0AA0/CC
Auxiliary Power Supply Voltage: $100 \text{ V}$ to $230 \text{ VAC}$ / $110 \text{ V}$ to $250 \text{ VDC}$
Input Voltage Measuring Range: $100 \text{ V}$ to $500 \text{ V}$ phase-to-phase (direct) or via potential transformers for higher voltage levels
Input Current Measuring Range: Rated for $1 \text{ A}$ or $5 \text{ A}$ secondary current from current transformers
Frequency Range: $50 \text{ Hz}$ or $60 \text{ Hz}$ nominal system frequency
Measurement Accuracy: High accuracy class, typically Class $0.2$ or Class $0.5$ for active energy and power measurements
Power Quality Monitoring: Measures total harmonic distortion (THD) and individual harmonics up to the 21st harmonic
Binary Inputs and Outputs: Includes configurable digital inputs and outputs for alarm signaling, status tracking, and pulse outputs
Communication Interface: RS-485 serial interface supporting MODBUS RTU or IEC 60870-5-103 protocols
Display Type: Integrated graphic LCD display with backlight for local parameter viewing and configuration
Housing and Mounting: Panel-mounted housing with IP54 front panel protection rating

Product Advantages

A key advantage of the 7KG7750-0AA01-0AA0/CC is its High Measurement Precision, which guarantees accurate energy accounting and reliable grid monitoring. The Power Quality Assessment features enable early detection of system disturbances, such as voltage sags or harmonic pollution, helping to prevent equipment overheating and unplanned outages.

Its Versatile Communication Capability ensures smooth integration into higher-level SCADA and energy management systems. The User-Friendly Interface with its clear LCD screen allows operators to check key electrical parameters and diagnostics directly at the control cabinet without external software. Furthermore, its Compact Panel-Mount Design saves space while offering high functional density.

Important Considerations and Precautions

When installing and commissioning the 7KG7750-0AA01-0AA0/CC, strictly observe the Current Transformer (CT) Secondary Connection Rules. Never open a CT secondary circuit while the primary circuit is energized, as this generates dangerously high voltages that can lead to fatal shock or equipment destruction.

Ensure that the Auxiliary Power Supply Voltage matches the rating of the instrument before applying power to prevent internal hardware damage. Proper Grounding of the device enclosure and signal shields is mandatory to prevent measurement drift caused by high electromagnetic interference in substation environments.

For Communication Wiring, always use shielded twisted-pair cables for the RS-485 bus and install appropriate bus termination resistors at both ends of the line to prevent signal reflection. Finally, configuration parameters, such as CT and potential transformer ratios, must be verified carefully during setup to ensure that displayed and transmitted values accurately reflect the physical grid conditions.

Product Applications

The Siemens 7KG7750-0AA01-0AA0/CC is deployed across energy distribution and industrial networks where continuous electrical monitoring is essential.

Power Generation and Distribution: Monitoring electrical parameters at feeder bays, transformer stations, and generator outputs in medium and high-voltage substations.
Industrial Energy Management: Tracking energy consumption, load profiles, and peak demands in heavy manufacturing plants, automotive factories, and chemical complexes.
Power Quality Analysis: Identifying harmonic disturbances, voltage imbalances, and power factor issues in sensitive commercial and data center electrical infrastructures.
Infrastructure and Utilities: Measuring power parameters in municipal water treatment facilities, transportation networks, and large-scale renewable energy installations.
Substation Automation: Interfacing as an intelligent electronic device within automated control systems for real-time telemetry and supervisory oversight.

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