Т.Ю.Кущ, М.С.ВоловникАнглийский язык для судовых электромехаников. ENGLISH FOR MARINE ELECTRICAL ENGINEERS. 1986

LengthXwidthXheight__

Height of the shaft centre, mm_

Weight, kg______

Sealing

GOST_ Size, mm_

Air Gap

36 30

Home exercise. Find in the text below the English equivalents for the following Russian word-combinations. Write a summary in English.

Законченное комплектное устройство (1), нулевая защита (1), сложное коммутационное устройство (3), открытая палуба (5), крышкой вверх (6), двухпостовое управление (7), высокопроизводительные механизмы (10).

1. The power cam controllers are self-contained unitized devices which, apart from the cam assemblies, have provisions for no-voltage protection, overload protection and, sometimes, one or two contactors and a relay.

2. The power cam controllers are widely used for controlling a-c motors of deck machinery.

3. Simple construction, reliable operation and small dimensions of this intricate switching device make it possible for electric drives which do not have to meet stringent requirements as to wear resistance.

4. Electric drives used for marine services are controlled by means of series power controllers which are available in two sizes.

5. The power cam controllers of the KB series have watertight construction as per class IP 56 and are designed for installation on weather decks.

6. The power cam controllers are designed for vertical mounting on weather decks or on the machinery. If no contactors are mounted in controllers the latter can be arranged in a horizontal position with the cover upward.

7. The use of the power cam controllers in the electric drives of the deck machinery is restricted to motor ratings of 20 to 25 kW. The factors which impose such restrictions are the operating frequency exceeding 300 operating cycles per hour and the requirements for remote or two-stationed control.

8. For anchor-handling, mooring and similar equipment with rating of up to 20 kW the power cam controllers are the preferred type of controllers.

9. The choice of the power cam controllers for cargo hoisting gear must take into account the required wear resistance of the controller.

10. For devices with a small number of startings and irregular operation controllers may be selected with regard to the starting and rated currents. For highly efficient gear with a number of startings per hour greater than 150 the value of the allowable starting and rated currents must be decreased to 1 or 2 times, so that the v'ear resistance should increase 2.5 or'4 times, respectively.

Hometask: Ex. 35, 36.

The fifth class period

Review of “Ship electrical equipment”. 10

Topical content: Technical documentation of electrical equipment. 8

37 20

Give the exact translation of the Certificate and dwell on it with your fellow-student.

Lloyd’s Register of Shipping Certificate for AC Generator or Motor

Cert. No. Lon. 71083 Works order No. 51433

Main order No. 22/462 21.1.84 Intended for Ship/Yard/Eng.

Type MC 634 В

Date 19.12.84 Port London Manufacturer: Newage Engineers, Limited, Stamford, Lines.

Purchaser: A/S Norsk Elektrisk and Brown Bovery, Oslo, Norway.

Dates of inspection:

First 20.10.84 Last 13.12.84 '

This is to Certify that the 3 3 Strike out word not applicable. This certificate is issued upon the terms of the Rules and Regulations of the Society, which provide that: “The Committees of the Society use their best endeavours to ensure that the functions of the Society are properly executed, but it is to be understood that neither the Society nor any Member of any of its Committees nor any of its Officers, Servants or Surveyors is under any circumstances whatever to be held responsible or liable for any inaccuracy in any report or certificate issued by the Society or its Surveyors, or in any entry in the Register Book or other publication of the Society, or for any act or omission, default or negligence of any of its Committees or any Member thereof, or of the Surveyors, or oilier Officers, Servants or Agents of the Society”. 38 7 Dwell with your fellow-student on technical documentation of electrical equipment. Use the text below and ex. 34, 35, 37. Be prepared to record your talk on a tape. auxiliary propulsion AC generator/stator, particulars of which are given below, has been inspected by me at the Makers’ works. The construction, workmanship and materials are good, and the machine complies with the relevant of the Society’s Rules.

On completion the 3 3 Strike out word not applicable. This certificate is issued upon the terms of the Rules and Regulations of the Society, which provide that: “The Committees of the Society use their best endeavours to ensure that the functions of the Society are properly executed, but it is to be understood that neither the Society nor any Member of any of its Committees nor any of its Officers, Servants or Surveyors is under any circumstances whatever to be held responsible or liable for any inaccuracy in any report or certificate issued by the Society or its Surveyors, or in any entry in the Register Book or other publication of the Society, or for any act or omission, default or negligence of any of its Committees or any Member thereof, or of the Surveyors, or oilier Officers, Servants or Agents of the Society”. 38 7 Dwell with your fellow-student on technical documentation of electrical equipment. Use the text below and ex. 34, 35, 37. Be prepared to record your talk on a tape. generator/motor was tested with satisfactory results.

Rating

kVA 560 Volts 380/220 Phase 3

kW 448 Amps 850 Cycles 50

HP — Power factor 0.8 R.P.M. 1,500

Type of enclosure S.P. and D.P. Class of insulation Stator В

Machine No. 51433/1 Date of Rotor F

Temperature test Machine

13.12.84 acting as Generator

Overload test

1 min. 2kV 50% for 15 sc

Shaft. BIR 761055

(signature) Surveyor to Lloyd’s Register of Shipping.