Toshiba W7 Series manual Drive Solution for, Small Footprint

The Drive Solution for

Total Harmonic Distortion (TDHE) can come from many sources, including computers, fluorescent lights, copiers and six pulse drives. The W7, with Toshibaʼs patented 18 Pulse Autotransformer design, removes this concern.

•Meets IEEE 519 Guidelines without Added Filters

•Produces a Ripple Free Voltage on DC Bus

•Clean Sinusoidal Input Current Waveform

•Up to 60% Reduction in Transformer Losses

100

90

80

70

60

50

40

30

20

10

0

INPUT CURRENT HARMONICS

6 Pulse (Typical) 18 Pulse W7

5 7 11 13 17 19 23 25 29 31 35 37 41 43 47 49

HARMONIC NUMBER

Current

Voltage

e: 60 Hz

@ : 113 Hz

Ch1 500mV Ch2 5.00mVΩ M2.00ms Ch1 10mV

Small Footprint

The high cost of real estate and constraints of existing facilities make size an important consideration in drive selection.

-400 HP Drive Only 42” Wide

-24” Depth on All Sizes

-Integrated Phase-Shifting Autotransformer

-Saves Real Estate on New Designs

-Easier Replacement of Old Drives in Existing Facilities

•60-200 HP: 100”H x 30”W x 24”D

•250-400 HP: 100”H x 42”W x 24”D

•500-800 HP: Consult Factory

(Addition of a bypass option will increase enclosure size)

�������

�������

�������

�������

*US Patent 6396723

JP Patent 2000-179543 (Pending)