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MGDDP

Product catalog summary

Overview: The document describes the technical specifications and features of the MGDDP 3,4/20 series three-phase tachometer generators, which are used as measurement transducers in control and regulation technology. These generators convert rotational speed into a proportional voltage of relatively high frequency.

Specifications: The MGDDP 3,4/20 series features 20-pole permanent magnet internal pole generators with two three-phase windings offset by 30 degrees. The generated voltage is rectified using a double three-phase bridge rectifier, which is housed in the machine's terminal box. The machines are maintenance-free except for the ball bearings and are available in various configurations, including single and double tachometer generators.

Magnet System: The magnet system consists of a 20-pole claw anchor with permanent excitation, designed to be stable without requiring short-circuiting during disassembly. The anchor can be removed without voltage loss.

Isolation and Protection: Standard isolation is according to class B (VDE 0530), with optional special isolation for moisture and acid protection. The machines are available with different protection classes, including IP 55 for single tachometers and IP 44 for double tachometers.

Performance and Linearization: The linearity error is approximately 5% within a speed range of 400 to 3000 rpm, which can be reduced to 1% by increasing the termination resistance. Temperature compensation is provided to counteract voltage drop due to temperature increases.

Connections: The winding starts of the two three-phase systems are connected to a 15-pin socket strip, with additional options for phase tapping using an intermediate plug. Double tachometer machines have separate terminal boxes.

Explosion Protection: The MGDDP 3,4/20 Ex model is designed for increased safety and special protection, suitable for use in explosive environments up to 160 V/2000 rpm.

Mechanical and Electrical Data: The machines are available in various base forms and can be equipped with additional components like impulse generators and centrifugal switches. The machines are painted light gray RAL 7030, with special coatings available for aggressive environments.

Ordering Information: Orders should specify the offer number, machine number, tachometer type, voltage version, protection class, construction form, and any additional components or special requirements.

Catalog excerpts

Dre hstro m-f ac ho mete rrDynamo Typenreihe MGDDP3,4120 . 2O-polig

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Die Drehstrom-Tachometer-Generatoren der Typenreihe MGDDP 3,4/20 sind MeBgroBenumformer fur die MeB- Steuer- und Regel- Die Aufgabe dieser 20poligen permanenterregten Innenpolgenerato- ren besteht darin, die Drehzahl, mit der sie angetrieben werden, in eine drehzahlproportionale Spannung relativ hoher Frequenz umzu- formen. Die Maschinen besitzen zwei um 30° elektr. versetzte Dreh- stromwicklungen. Die erzeugte Spannung wird uber einen Doppel- Drehstrombriicken-Gleichrichter gleichgerichtet. Dieser Gleich- richtersatz GT2 ist steckbar im Maschinen-Klemmkasten unterge- bracht (Zubehorteil, Mehrpreis)....

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HUE|NEFI -GIEEISEN- Einfachtacho MGDDP 3,4120 Doppeftacho MGDDP 3,4120+MGDDP 3,4t2O permanent Erregung Nennspannungstoleranz *5% reversierbar,ohne Drehrichtungserkennung bei Einfachtachos Doppeltachos Drehrichtung bei Polzahl 10w 20 2 x10 W 50 kg cmz 100kg cm2 Grundfrequenz 166 Hz bei 1000 r/min 10kg 18kg Oberwellenfrequenz 2000 Hz (12f1)bei 1000 l/min Obenrellenspannung E u-ett: x 2 % (1000-60001/rint 35 %obezogen auf Listenleistung Linearitätsfehler generell Temperaturkompensation mit max. entnehmbare Leistung 1/min bei1000 Massenträgheitsmoment ca. Gewicht ca. lsolation Temperaturgang t1 %o...

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-Angebots-Nr., Kom.-Nr., Maschinen-Nr. alte - Tacho-Typ - Spannungsausführung - Schutzart - Bauform - 1 oder2 Wellenenden Simmerring) (mit - Bohrungsgröße Bauform 4 A bei - mitoderohneB 14Flansch BS - Sonderisolation - Sonderfarbton (normal RAL7030) Anbauten: - lmpulsgeber - Fliehkraftschalter - KupPlungsflansch - Drehmomentstütze - 2tesWellenende Haube abgedeckt mit GT Frequenzgeber 23 ... - lmpulszahl (Vervielfach ung) - Dreh richtungs- Stillstandserkennung und - Versorgungsspannung 'Siemensstrasse 'Telefon(0641)7969-0 'FS 04-82907 7 Maschinen GmbH'6300 Giessen Hübner'Fabrik elektrischer Johannes...

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MGDDP

MGDDP

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