T E S T I N G A N D R E P A I R S OF E L E C T R I C I T Y M E T E R S

(UDC 621.317.785.089.6)

N. P. S o s n o v s k i i

Translated from Izmer i t e l ' naya Tekhnika, No. 9, pp. 42-43, September , 1964

The ar t ic le written by Yu. L. Rakhinskii ( ' I z m e r i t e l ' n a y a tekhnika" , 1964, No. 1) on testing and preventive

repairs of e lec t r ic i ty meters seems to be wel l - founded.

The Vologda GKL (State Inspection Laboratory) receives many e lec t r i c i ty meters after the date specified for

their state testing and, on the basis of Instruction 195-60, refuses to test them, although the customers insist on them being tested, arguing that the meters are in good order, do not require repairs, have been in use only two years, or have worked at a low load ( 1 - 3 bulbs of 40 W). Electr ici ty meters which operate with a low load and do not require repairs amount to 7 0 - 8 0 % of the total .

It is unl ikely that repair organizations would mend meters which provide accurate readings, whereas an in- spector who is required to provide state test ing of a meter has no means, as the ar t ic le points out, of ascertaining

whether the instrument had been repaired.

It wil l be seen from the Table , which shows the number of e lec t r ic i ty meters tested by the Vologda GKL, that

a large number of e lec t r ic i ty meters are sent for repairs without having been state tested.

In Vologda there are two organizations which repair e lec t r ic i ty meters according to the following schedule.

Small and current repairs without dismantl ing the e lec t r ic i ty meters, but including state testing, cost 1 rouble

79 copeks in one organizat ion and 2 roubles in the other.

Medium preventive repairs after five years service from the date of state testing, including dismantl ing, c l ean -

ing and adjustment, cost 2 roubles 60 copeks and 3 roubles 30 copeks,

Overhauls or heavy repairs, with rep lacement of components, cost 4 roubles aud 5 roubles 30 copeks respect ively .

Tested in use Tested after repairs

Year total number number percentages total number re jec ted rejects number re jec ted

1960 1961 1962 1963

4987

4054

3492

2645

1096

1149

1066

728

21.5

28.3

30.5

27.5

4325

5236

5225

10467

36

22

47

114

It will be seen that the price for repairs is rather high, and is based on the mean cost of repairs.

By refusing to test the customers' c lec t r ic i ty meters, the GKL compels them to have their meters repaired, at a considerable cost and remain without their meters for a long t ime , since repairs take several months.

In the opinion of many Vologda GKL workers the provision of Instruction 195-60 specifying compulsory preven- t ive repairs of e lec t r ic i ty meters after five years service from the date of the last State testing should be abolished.

Each GKL should keep a record of e lec t r ic i ty meters which are tested after five years service, and send the reports of their test ing to the State Commit tee ' s Administration, which will thus be able to es t imate the duration of

an e lec t r ic i ty meter ' s operat ion without repairs.

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