DC ELECTRIC DRIVES PRODUCED BY MEZ VSETIN

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00046R000500070009-0
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 5
• Document Creation Date: December 27, 2016
• Document Release Date: May 23, 2013
• Sequence Number: 9
• Publication Date: May 23, 1955
• Content Type: REPORT

C-0-N-F-I-D-E-N-T-I-A-L
STATE
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/05/23: CIA-RDP82-00046R000500070009-0
INFORMATION REPORT INFORMATION REPORT
CENTRAL INTELLIGENCE AGENCY
This material contains information affecting the National Defense of the United States within the meaning of the Espionage Laws, Title
18, U.S.C. Secs. 793 and 794, the transmission or revelation of which In any manner to an unauthorized person is prohibited by law.
C-0-N-F-I-D-E-N-T-I-A-L
50X1
COUNTRY Czechoslovakia REPORT
SUBJECT DC Electric Drives Produced DATE DISTR.
by ME Z Vsetin
23 May 1955
50X1
NO. OF PAGES
5
50X1
DATE OF INFO.
REQUIREMENT NO.
50X1
PLACE ACQUIRED
REFERENCES
DATE ACQUIRED
50X1
SOURCE EVALUATIONS ARE DEFINITIVE. APPRAISAL OF CONTENT IS TENTATIVE.
#x
ARMY
NAVY
#x
AIR
#X FBI AEC
(Note: Washington distribution indicated by "X"; Field distribution by "#".)
INFORMATION REPORT INFORMATION REPORT
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/05/23: CIA-RDP82-00046R000500070009-0
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/05/23: CIA-RDP82-00046R000500070009-0
50X1
CONFIDENTIAL
COUNTRY Czechoslovakia
SUWECT DC Electric Drives Produced by
MEZ Vsetin
DATE OF INFORMATION
PLACE ACQUIRED
THIS IS UNEVALUATED INFORMATION
REPORT
DATE DISTR.
50X1
19 April 1955
4
50X1
50X1
50X1
50X1
NO. OF PAGES
REFERENCES:
1.
Spolana4 National Enterprise, in Neratovice (N 50-16, E 14-31)
built six new production lines for viscose rayon fiber. Each
line-was 400 meters long. The delivery of electric drives for
these lines was the joint responsibility of MEZ in Vsetin (N 49-20,
E 18-01, MEZ in Brno-Zidenice, MEZ in Postrelmov (N 49-55,
E 16,55 , and EZ (Works for Assembly and Installation of Electric
Equipment) in Prague. MEZ in Vsetin was responsible for the sat-
isfactory operation of the drives. These were DC drives and there
was a separate drive for each line. Each drive consisted of seven
motors arranged in two. groups which drove the individual sections
of the line. The first group coneisted of two motors; the second
group consisted of five motors. All of the motors were small,
having an output of about five kilowatts each. Each group was
fed by one generator. the generator for the
second group developed about 40 kw. Each generator had an tutpriayne "
for speed control. All of the motors were produced by MEZ ZidnIce,,
while the generators were products of MEZ Vsetin. MEZ Pos:tharkm
cuPplied the. pene16./
\the order for the drives was placed with MEZ Vsetin in
1951 and deliveries were begun in 1953. Spolana put the first
line in operatioll'in March 1954 and all six lines
were operating by the end of 1954.
2. Buzuluk, National Enterprise, in Komarov, near Horovice (N 49-50,
E 13-55) was engaged in production of calenders for use in Soviet
rubber factories. The calenders were of three and four cylinders.
In 1951, Buzuluk asked MEZ Vsetin about the possibility of pro-
ducing D0 drives for these calenders. MEZ suggested the same type
of drive as was being produced for the paper works in Mlade Buky
(N 50-36, E 15-52), i.e., a Ward-Leonard set with amplidyne speed
control (see paragraph 3 below). The Soviets refused this offer
because the DC motor did nOt comply exactly with the specificatione
stipulated;. consequently, Buzuluk placed the order with CKD
Stalingrad. The CKD drive was also a Ward-Leonard set.. The diameter
of the armature of. the DC motor was 46 cm.; the motor had four poles
CONFIDENTIAL
50X1
,
50Xi
50X1
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/05/23: CIA-RDP82-00046R000500070009-0
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/05/23: CIA-RDP82-00046R000500070009-0
CONFIDENTIAL 50)0.
- 2 -
and developed an output of 150 kw. at 1,000 rpm. However, the
speed of the generator was not controlled by amplidyne since
CKD did not produce this type of speed control. Since the Soviets
insisted on the use of amplidyne speed control for the drives, the
generators were equipped with amplidynes designed by MEZ-Vsetin
and produced by MEZ Development. The original order was placed
with CKD Stalingrad in 1951 and called for six units of the drive;
but, it was understood that orders calling for several units of
the drive per year would continue to be received. CKD Stalingrad
started deliveries in 1953.
3, In 1950, the paper works in Mlade Buky placed an order with MEZ
Vsetin for a DC single drive to be used in the production of paper
for statistical machines similar to those produced by IBM. MEZ
filled this order with a Ward-Leonard set which developed 120 kw.
at 1,500 rpm, with amplidyne speed control. Both the DC motor and
generator were type M 50 21. The drive was completed in spring 1954
but delivery was not made. The delivery destination had been changed
twice -- first, to a paper works 500
and then to the Paper s n uzom ero 9-05, E 19-19). ,
As of summer 1954, the Paper Mills in Ruzomberok were not yet ready 500
to accept delivery.
MEZ Vsetin produced three DC single drives for the paper works in
Harmanec (N 48-49, E 19-03) and the paper works in Slavosovce
(N 48,43, E 20-17). They were of a size similar to that described
in paragraph 3above, Two of the units were for Harmanec -- one
for the machine referred to in the factory as "number five", the
other for their "Yankee type" paper machine. The third unit was
destined for 51Evosovce; however
the delivery destination of this unit mlot be changed to Harmanec.
All three drives should be completed during 1955.
5. MEZ Vsetin also delivered one DC motor with an output of about 15
kw. for use in the DC sectional drive which was to be put in
operation ,at the paper works in Olsany (N 49-32, E 17-10). This
DC sectional drive was an AEG product which was probably delivered
to,Olsany. during World War II, but the drive was not complete. In
addition to the DC motor which was supplied by MEZ Vsetin, the
equipment for automatic synchronization and speed control of the
entire .drive was missing. This equipment was to be. produced by
Krizik Development Plant, National Enterprise, in Prague-Karlin.
As of late summer 195)4, this control equipment had not been delivered.
The design of the control equipment was based on Krizik's equipment
for maintaining constant frequency and was too complicated for use
in speed control of the drive for paper production machinery. The
Krizik product was the first Czechoslovak-made speed control equip-
ment for DC sectional drives and, therefore, would serve as a model
for future manufacture of this kind of equipment. As a matter of
fact, all the DC sectional drives having automatic speed control
which were operating in Czechoslovakia were of foreign manufacture.
They were AEG, BBC, or Siemens products. For example the paper
works in Vrane (N 49-57, E 14-24) used a BBC sectional drive, Up
until the time the Krizik control equipment was produced, Czecho-
slovakia had produced only DC single drives for use in paper mills*
The only exception was the DC sectional drive produced by CKD in-
Prague-.Vysocany, presently known as CKD Stalingrad, in about 1935
for use in the Paper Mills in Ruzomberok./
CONFIDENTIAL
50X1
50X1
50X1
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/05/23: CIA-RDP82-00046R000500070009-0
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/05/23: CIA-RDP82-00046R000500070009-0
50X1
CONFIDENTIAL
3.
high time for Czechoslovakia to begin production of DO sectional
ve with automatic speed control for use in paper mills.
Poland had asked about Czechoslovak production possi-
bili es n-this field and?that there was also a good chance of?
exporting DC sectional drives In 1950, the Austrian
firm, Voiht, in St. Poelten (N 48-12, E 1538) asked MEZ to make
an offer regarding DC sectional drives for paper production
madhinery. The total output requested was 800 kw. The drive was.
intended for USIA and, therefore, believed to be for the use of the
Soviets,. MEZ Vsetin made a preliminary offer which was rejected,
source believed, because MEZ could give no recommendations con-
cerning past experience in this field.
The.Development Plant for Machinery for the Manufacture of Rubber
.Products in Gottwaldovi placed an order with.MEZ Vsetin in 1949
or 1950 for a DC electric drive for a rubber calender train which
was to be installed in the Matador plant in Puchov (N 49-08, E 18-
20). Matador was a factory for tire production and the new calender
train, was to be used for coating the cord with rubber. At the same
time, the Development Plant in Gottwaldov placed an order with MEZ
for.a DC drive to be Used with the equipment for treating the cord
before it is coated .with rubber. The latter order was cancelled;
source did not know the reason for cancellation.- The drive for
the rubber calender train consisted of the following separate drives:
a-drive for entry cylinders, for the drying machine, for calenders,
cooling machine, exit cylinders, and winding cylinders, -The oalender.
.drive DC motor developed 220 kw, at from 750 to .1,200 rpm, 380 v,
650 amp. The remaining DC motors were of small sizes five Or 10
kw, . The belt was three meters wide and its speed could be regulated
from 15 to 6o meters per minute; however, it Was understood that 60
meters was to be the constant operatiOn'speed. In summer 1954,
Matador requested early delivery and MEZ Vsetin romised to deliver
the equipment in the autumn of 1954; however not believe ? 50X1
that the equipment could be ready before the en
SHD (Northern Bohemian Lignite Mines) in Most (N 50-32, E 13-39)
placed an .Order with MEZ Vsetin for DC machines to be used in the
SHD testing plant.2 The order was placed about 1949 and called for
One type M 8o -- 6-k generator; 50X1
The generator was to oevelog an output or 300 kw.
at 750 rpm, 1,500 v.. this generator was to be 50X1
used for testing electric Motors in locomotives which may have been
in operation at the mines, or for testing locomotives which were 50X1 ?
to be delivered to the plant by the V.I. Lenin Works in Pilsen.
electric locomotives were under production et the 50X1
V,I. Lenin Works about this time. The order also called for one.
generator and one motor, both of which were type M 71. 30-8, developing
300, kw. at 750. rpm, 440 v. the motor Was to 50X1
be connected to a synchronous generator, origin unknown 150X1
for generating alternating _current of variable frequency, This may.
indicate that SHD intended their testing plant to be used for .
general .purposes, in addition to testing equipment for tines.
MEZ Vsetin manufactured two generators, type M 63 25-8 or M 63
30-80 developing 330 kw. at 980 rpm, 110 v, 3,000 amp., eadh Of
which Was driven by an induction motor which was also a produpt
ofleZ. One unit was for Milo, National Enterprise, in Olomou0
and the othet unit was for- the Milo plant in BratislaVa. These
factories produced artificial fats. The generators operated at
90 to 96 v and:20800.to 3,000 amp. The delivery of the unit for
Olomouc was urgently'requeeted because the, plant apparently had
scheduled operations to begin in July 1952; however, the unit was
not delivered until. summer 1953. The unit destined for Bratialava
50X1
50X1
50X1
CONFIDENTIAL
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/05/23: CIA-RDP82-00046R000500070009-0
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/05/23: CIA-RDP82-00046R000500070009-0
CONFIDENTIAL
- 4 -
was also delivered in 1953 although no request for urgent delivery
had been made... Since the time they were delivered, both. units
.have been returned to MEZ for repairs several times.'
9. The Machine Tool Development Plant in Prague-Liben, na Zertvach 24,
placed an order with MEZ Vsetin for two DC motors, type M 28 25-4,
to be :rated for an output of 50 kw. at from 1,500 to 3,000 rpm,
500v. The order was placed in 1952 and delivery was made in 1953.
The motors were fed by mercury rectifiers.
10. In 1949, the Ministry of National Defense ordered a DC motor with
an output of 25 kw. at 5,500 rpm from MEZ Vsetin. Delivery had not
been made as of summer 1954, mainly because the order Made by the .
' Ministry was confused and required further clarification.
50X1
50X1
CONFIDENTIAL
4
k
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/05/23: CIA-RDP82-00046R000500070009-0