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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Purchase and cost of insulation testing apparatus.

Identifier  ExFiles\Box 32\4\  Scan033
Date  10th December 1920
  
X.1681

To R.{Sir Henry Royce} from Hy.{Tom Haldenby - Plant Engineer}
c. to CJ.

Hy{Tom Haldenby - Plant Engineer} 6/DB{Donald Bastow - Suspensions}10.12.20.

X.1581

Re Insulation Testing Apparatus.
--------------------------

X.1109

Mr. Clark has requested that we purchase two small transformers for insulation testing. The transformers would step up to a maximum secondary voltage of 20,000, and he states that it is your wish that some such apparatus be obtained.

As we are doing all we can to curtail expenditure, I shall be glad if you will kindly let me know whether we should purchase the two transformers. They will cost, complete with the oil, £41 each, and as Mr. Clark says he requires one for his own use and one for production department the total expenditure will be £82.

If you think we should obtain such apparatus, perhaps you would say whether we can manage with one set only.

Hy.{Tom Haldenby - Plant Engineer}
  
  


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