whatsapp: 0086-18615575385
whatsapp: 0086-13668821631

Magnetic Powder Brake & Electronic Control Didactic Equipment Electrical Laboratory Equipment

Item No.: AFC-2D
AFC-2D Magnetic Powder Brake & Electronic Control Didactic Equipment Electrical Laboratory Equipment
Description
AFC-2D Magnetic Powder Brake & Electronic Control Didactic Equipment Electrical Laboratory Equipment

This brake enables the measure of the mechanical and electrical characteristics of electrical motors and allows plotting the Torque = f (RPM) curve and calculating the real Pmec(W) developed by the motor.
TECHNICAL SPECIFICATIONS:
MAGNETIC POWDER BRAKE
• Braking torque range: up to 30 Nm. With max torque limiter.
• Speed range: up to 6000 RPM. With min speed limiter.
• Power range: from 0,75 to 1.5 KW
• Integrated thermal protector and fan
• Includes the RPM probe and the bidirectional Torque probe.
• The unit is ready to be directly coupled to the “POWER” motors line (1 kW), over the same support base mod. BP (not included).
Dimensions: 400 x 260 x 300 mm
Weight: 30 kg

ELECTRONIC CONTROL BOARD
• Supplies the power to the Brake unit and processes the signals of the RPM, Torque and Temperature probes.
• Braking Modes: EXTERNAL, MANUAL, AUTO (with 4 selectable braking curves):
a) Constant Torque vs. RPM. It is the MANUAL mode, with T = k1 , being k1: a constant that can be set at different values. This curve is typical of elevators and cranes, conveyor
belts etc.
b) Linear Torque vs. RPM (T = k2 * n (RPM), being k2: a constant that can be set at different values). This curve is typical of calenders, used in textile , paper and metallurgy
industries.
c) Quadratic Torque vs. RPM (T = k3 * n2  (RPM), being k3: a constant that can be set at different values). This curve is typical of centrifugal pumps, centrifugal fans etc.
d) Inverse Torque vs. RPM (T = k4 / n (RPM), being k4: a constant that can be set at different values). This curve is typical of lathes, cutting machines, reel-type machines etc.
• The braking time is settable, to define constants k2, k3 and k4.
• For each braking mode, it is possible to set the UNDER SPEED and OVER TORQUE limiters for safe tests. One 3-states LED for signaling: READY, RUN and OVERTEMPERATURE.
• The unit supplies 2 * 0-10 VDC analog outputs (both programmable among any internal measured or calculated parameter): for example, one can be proportional to RPM and
the second proportional to Torque. These signals can be used as inputs for other instruments (our CEM-U Computerized Measurement Unit, or any already existing instrument).
• Possibility of external control with a 0-10 V D.C signal.
• On-board programmable multifunction instrument. It can be selected for:
a) AC (single-ph or 3-ph balanced): measures V, I, W, VAr, VA, frequency and Power Factor.
b) DC: measures V, I W
• Backlit digital display and keyboard for programming the instrument and to show the set / measured / calculated parameters, such as: Torque (Nm), RPM, Pmec (W), Pel (W), Effi ciency etc.
Dimensions: 400 x 160 x 250 mm
Weight: 7 kg
Supply with 
THEORETICAL – EXPERIMENTAL HANDBOOK