Document jBmpGQyob8LOVgjxyw2X0L4v9
i ' Monsanto
,i.ec*i.^. c.R. COLZMAN, Ruabon.
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28th May, 1969.
ACTION S!S."T - SLSCTRICAL FLUIDS COMPETITOR'S TRANSFORMER ASKAREIS. CRC/BJO'G.
TO j.N. HAGGART., Brussels.
. G.V. Adkins, Romo. w^P.G. Benignus, St. Louis
B.O. Fjeld, Stockholm. P.J.A. Marsh, London. ' B.A. Olson, St. Louis. .J.M.M. Thomson, London.
. -I received this document today and note that I have to complete the
second action by 1st June. The information that I have about products from
; Bayer, Kanegafuchi and Prodelec is up-to-date, but that from Caffaro and
Russia may be out-of-date since I have not recently had contact with these
suppliers.
.
The table gives details.
Manufacturer Bayer West Germany
Bayer
Brand Clophen T64
Glophen T241
Caffaro Italy
Kanegafuchi Japan
.Kanegafuchi .Prodelec Prance
Prodelec
Apirolio 1480 T
Kanechlor 1000
Kanechlor 1300 Pyralene 1467.
. Pyralene 1470
U.S.S.R. U.S.S.R. U.S.S.R.
. Sovtol 10 ' Sovtol 1
Composition ^ w/w)
Hexachlorodipr.eny 1 60
Trichlorobenzene
40
.. Scavenger
None
Hexachlorodiphenyl 45
. Trichlorobenzene
40
Tetrachlorobor.zene 15
Scavenger
None
Hexachlorodiphenyl 60
Trichlorobenzene
40
Scavenger
None
Hexachlorodiphenyl 60
Trichlorobenzene
40
. Scavenger
Not known.
Composition not known (Note 2;
Hexachlorodiphenyl 60
Trichlorodiphenyl
40
Scavenger - TPT
0.125
Hexachlorodiphenyl " 45
. \ Trichlorobenzene
40
Tetrachlorober.zene 15
Scavenger - TPT
0.125
Pentachlorodiphenyl 90
' Trichlorobenzene
10
;
"'Scavenger - See note 1.
i
'""Pentachlorodiphenyl 64
|
Trichlorobenzene
36
'
Scavenger - not known.
Pentachlorodiphenyl 75
Trichlorobenzene
25
' Scavenger - not known.
. Rote 1 - Report No.2. Job No.370-503 Date 7-J.60 by G.IV. Miller, Anniston Plant. "Scavenger is present in a concentration equal to 0.014 milliequivalents chloride per 100 grams of blend. The scavenger does no_t appear to be an epoxide. ... most probably arises from a nitrogenous base type of
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TOWOLDMON0057368
Kote 2 - This is a new low temperature transformer askarel. It has a
lower density range 1.530 to 1.370 g/cm2 at 15C, and a wider distillation
range 170 to 360C at J60 torr. Its pour point is less than -50C and its
kinematic viscosity at 50C is 1.0 to 2.0 cSt. It is claimed to be non
flammable (JISC2321). Its relative permittivity at 50C| 50 Hz is 5*0 to 5-:
rather high.
*'
You can see that Bayer and Prodelec both produce Pyranol 1470 type . askarels with a greater ratio of chlorinated benzene to chlorinated diphenyl
giving pour points in the range -45 to -50C compared with -34 to -370 for our present blend. A typical transformer mineral oil has a pour point as low as -60C. Obviously there is no demand in the UK for this type of transformer askarel, but in Europe it may well be different. It would be interesting to find out how much of the Pyranol. 1470 type is sold in relation .to the 1467 type. We should also see how Kanegafuchi with Kanechlor 1300 have obtained a pour point lower than -50C.
. In the UK we are not able to generate our own experience on the operation
'of transformers at low temperatures, since instances of long sub-zero speils
are so infrequent. It is therefore not possible to correlate experience and
case-histories of transformers with the physical properties of various blends.
.Since we are about to launch Pyroclor 70/30, whose main difference from the
.present Pyroclor is its increased viscosity at lower temperatures, it wenid
' be helpful if we had some case histories of transformers filled with this bier.
which have'successfully withstood frequent energisation at sub-zero temperatur
.. Such examples would reassure transformer manufacturers who might be worried
*.about the higher viscosity of the new blend more convincingly than theoretical1
arguments.
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I..... 1; : .COLIN R. COLEMAN.
I note you have covered the last paragraph in your first action.
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