ANIKRON TM-08

The ANIKRON TM-08 digital excitation regulator for synchronous motors is designed to supply the rotor field winding and automatically control the excitation current during direct-on-line, reactor, variable-frequency, and soft starts, as well as during synchronous operation and emergency conditions of industrial synchronous motors (up to 32 MW) equipped with brush excitation systems.

Key advantages:

• Energy efficiency
• Reliability
• Ease of setup
• Maintainability

Technical features:

• Advanced comprehensive control algorithms enabling the system to:

           - Maintain specified levels of reactive power or power factor (cos φ);

           - Handle highly variable and shock loads;

           - Operate seamlessly with soft starters and variable-frequency drives (VFD).

• Fully identical, independent, and interchangeable main and backup excitation control units;
• Extended range for rated excitation voltage (30 to 250 V) and rated excitation current (100 to 350 A);
• Built-in LCD touchscreen display;
• Selectable rectifier configurations: center-tap, full-wave bridge, or switchable. Using an automatically switchable three-phase rectifier configuration reduces 0.4 kV grid power consumption by a factor of 1.4 compared to standard bridge-only exciters. This technical solution allows the use of matching transformers with a capacity one step lower than required for traditional rectification schemes;
• Effective built-in diagnostic system for the thyristor rectifier, based on rotor voltage and current waveform analysis. It detects thyristor breakdown, thyristor open circuits, phase loss in the supply network, and partial rotor short circuits;
• Reliable operation within a supply voltage range of 0.6 to 1.3 of the rated value;
• Start readiness indication, preventing motor startup if the excitation system is unready or faulty;
• Integrated communication interfaces: RS-485 with Modbus protocol and three 4- 20 mA current loops;
• External excitation current control via 4-20 mA current loops, RS-485 (Modbus), and pulse-width modulation (PWM);
• Compatibility with a wide range of industrial synchronous motors without requiring design modifications;
• Customizable climatic execution available upon request;
• Available enclosure ratings: IP20, IP31, Ip54;
• Custom manufacturing to meet specific customer requirements (dimensions, software, design, and climatic version).

Protection features:

1. Prolonged asynchronous operation protection
2. Loss of excitation protection
3. Prolonged startup protection
4. Short circuit protection for the excitation circuit and power section
5. Overtemperature protection for thyristors and the regulator cabinet interior.

PARAMETERS	UNITS	VALUES
Rated excitation current	А	100-350
Rated excitation voltage	V	30-250
Current boosting ratio	r.u.	1,5
Event log capacity / Stored oscillograms	-	1000/1000
Mean time between failures (MTBF)	h	150000
Service life	years	25
Dimensions (W×D×H)	mm	609х630х1943
Weight	kg	210