computer MAX

Product catalog summary

Overview: The Computer Max Automatic Power Factor Relay is part of the Max Series, designed for efficient regulation using CIRCUTOR’s FCP system. It offers features such as displaying cos φ, voltage, current, and THD(I), and records maximum values for voltage and current. It includes a 'phase selection' function for choosing the power line phase for the current transformer (C.T.).

Key Features:

Display of cos φ, voltage, current, and THD(I).
Alarm indications for compensation failure, over-compensation, over-voltage, over-current, C.T. issues, and low line current.
Simple and intuitive programming system.

Technical Specifications:

Voltage Measurement Circuit: Power supply options of 230, 400, 480 Va.c. with a tolerance of -10% to +15% and consumption of 4 V·A (max 6) - 6 V·A (max 12).
Current Measurement Circuit: Measuring voltage options of 230, 400, 480 Va.c. with a measuring current transformer of In / 5 A +20%.
Output Relay: Maximum voltage of 250 Va.c. and maximum current of 10 A with electrical endurance of 5 · 104 / 5 · 106 operations.
Build Features: Operating temperature range of -10 to +50 ºC, panel assembly, dimensions of 144 x 144 mm, and protection degree of IP 52 (frontal) / IP 31 (rear).

Performance and Functions:

Measures electric parameters including voltage, current, THD(I), and maximum values of U and I.
Includes 'phase selection' function and integrated control system FCP / 4 quadrants.
Connection programs available for various configurations.
Test functions include Cos φ Correction Test & Harmonic Resonance Test.
Connection delay Tr of 4 to 999 seconds and safety delay Ts of 5 · Tr.

Standards: Complies with IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-11.

Product Variants: Available in different types with varying supply voltages (230, 400, 480 Vc.a.) and number of steps (6 or 12).

Catalog excerpts

Automatic Power Factor Relays Automatic Power Factor Relay Description The state-of-the-art regulators of the Max Series have been designed to offer simple and efficient regulation features. The whole range of computer regulators is based on CIRCUTOR’s FCP system (Fast Computerized Program), offering a set of unique performance features. Its main features are as follows: —— Shows by display: cos φ, voltage, current, THD(I) and, besides, records in memory maximum values for voltage and current provides the “phase selection” function, that allows the user choosing the power line phase where the measuring current transformer (C.T.) has been placed in allows viewing in display the variation of cos φ, line current and THD(I), when manually connecting or disconnecting capacitor steps. —— Indication by display or through relay output of following alarm conditions: Compensation failure, Over-compensation, Over-voltage, Over-current, C.T. not connected or open, Line current below measurable value. Aplications The computer Max relay is ideal to compensate unbalanced installations where the ease or programming, robustness and accuracy are vital requirements. Its programming system is simple and intuitive, making it very easy for the user to install and maintain it. Technical features Voltage measurement circuit Power Supply Consumption Current measurement circuit Output relay Measuring voltage Measuring current Maximum voltage Maximum current Electrical endurance (mechanical) Operating temperature Connection strip Protection Degree Measure electric parameters Voltage, current, THD(I), and maximum values of U and I “Phase selection” function Selection of the power line phase where the C.T. is placed Integrated control system Connection programs Test Function Cos φ Correction Test & Harmonic Resonance Test Safety delay Ts Standards Compensation failure, Overcompensation, Overvoltage, Overcurrent, C.T. not connected or open, Line current below measurable value Last relay configurable as alarm output Build features Relay Alarm Alarm relay

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