Page 16 - 3-5kV Induction Motor

Iris Power MDSP3

BENEFITS: SPECIFICATIONS:
Advanced Algorithms: Iris Power Motor HP: 50hp (37.5kW) & up WHY ANALYZE CAGE
MDSP3 is developed by combining Signal/Noise ratio: >100 dB WINDING FAULTS AND AIR
advanced current signature analysis GAP ECCENTRICITY?
algorithms to accurately predict the Sampling rate: >6500/sec Rotor Core damage: Broken bars
operating slip from the measured Load Current between 35% and 110% cause local temperature increases
current. The slip calculations can also of nameplate and at least 20% of and arcing leading to rotor core
be done at different loads. nominal sensors current damage.
Simplicity: Iris Power MDSP3 can Maximum Rotor Slot Passing
detect cage winding faults and Frequency: 3000Hz Premature degradation of
eccentricity with the use of a single Minimum Full Slip: 0.8% bearings: Broken rotor bars cause
clamp-on current sensor connected torque and speed oscillations on the
to the secondary side of 50 or 60 Hz Dimensions: 6.5” x 3.75” x 1.25” rotor. This degrades the bearings.
motor current transformer; or around (16.51cm x 9.52cm x 3.175cm) Rotor bar movement and failure:
one of the phase leads. Mass: 1 lb (4 kg) Broken rotor bars can lift out of the
Reliability: In line with other Iris KIT CONTENTS: rotor slot due to centrifugal force
Power instruments, the Iris Power or pieces of them can break off and
MDSP3 is designed to significantly • Iris Power MDSP3 processor with 2m cause a stator winding failure.
reduce the risk of false indications silicon rubber current probe cable Rotor bending: Large air pockets
by distinguishing between noise and • Current sensors: 2 included; 5A, and in rotor windings cause non‐uniform
legitimate rotor bar problems, with a combined 250A, 500A and 1000A; bar expansion leading to rotor
noise floor greater than 100 dB. clamp‐on type, 690 V bending and unbalance.
On‐line measurements: All testing is • Digital tachometer Rotor eccentricity: For the rotor
done on‐line, in less than 75 seconds • DAU USB cable rotating off‐center, both static and
in normal mode, to find problems dynamic eccentricity in conjunction
before they cause additional motor • Universal power supply— with the resulting unbalanced
damage. 120/240 V, 50/60 Hz magnetic pull can lead to: 1)
Range and accuracy: Iris Power • MDSP3Pro software bundle for high vibration levels from rotor
MDSP3 can accurately test motors computers running Windows 7 or unbalance, 2) a rotor to rub against
under varying load conditions higher the stator bore which can cause a
where many other test systems give • Quick start guide stator winding failure.
ambiguous results. The Iris Power • Carrying case (IP67, NEMA 4X) Although these problems may
MDSP3 includes two current probes not cause immediate failure, they
to cover a wider range of current OPTIONAL DAU: often lead to deterioration that
from 5A to 1000A. Rugged data acquisition unit with is expensive to repair or may be
Portable and safe: Iris Power Windows operating system and catastrophic. Thus early detection
MDSP3 needs only one input from preinstalled software for Iris Power using the Iris Power MDSP3 prevents
a current probe clamped directly MDSP3 (Panasonic Toughbook or unexpected motor failures.
to one of the phase leads or the similar.
secondary side of a CT at the motor
MCC or breaker. The Iris Power
MDSP3 processor is powered
through the USB connection or
100 to 200 V 50/60 Hz power supply.

Air gap eccentricity spectrum analysis Broken rotor bar spectrum analysis

QUALITROL-IRIS POWER HAS BEEN THE WORLD LEADER IN MOTOR AND GENERATOR WINDING DIAGNOSTICS SINCE 1990,
PROVIDING A FULL LINE OF ON-LINE AND OFF-LINE TOOLS, AS WELL AS COMMISSIONING AND CONSULTING SERVICES.

Iris Power LP
3110 American Drive
Mississauga, ON, Canada L4V 1T2
Phone: +1-905-677-4824
Fax: +1-905-677-8498
Sales.iris@qualitrolcorp.com
Qualitrol Company LLC
1385 Fairport Road
www.irispower.com Fairport, NY, USA 14450
Phone: +1-585-586-1515
www.qualitrolcorp.com Fax: +1-585-377-0220
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