Marine Industrial Explosion-proof Electrical Motor

YB-H Series Marine Explosion-proof Electric motor

Introduction

TheYB-Hseries YB-H Series Marine Explosion-proof Electric motor is an appropriation electric motor that designs for the well ventilated machine of ships.  Excepted form and install the size outside,  other function index signs and the  The motors also comply with the relevant requirements of the following standards and specifications. IEC60034                                Rotating electrical machines

IEC60068                 Basic environmental testing procedures

IEC60072                 Dimensions and output ratings for rotating electrical machines

IEC60092                 Electrical installation in ships

The  motors  are  also  in  conformity  with  part  of  the  specifications  of  the  following  Ships  Classification

Societies.

LR                            Lloyd’s Register of Shipping

GL                            Germanischer Lloyd

NK                            Nippon Kaiji Kyokai

Construction

* Protection      IP56

* Frame, end shield and bearing cap

All  made  of  Grey  cast  iron  HT200  (GB/T9437)  and  the  outer  surface  of  the  frame  is provided  with longitudinal cooling ribs to increase cooling effects.

* Shaft extension

Standard motors have a cylindrical shaft extension. Motors of B3 and B35 type with two shaft extensions

are afforded on request, but the second shaft extension can only transmit rated output with direct coupling. The shaft is made of high grade steel No 45 (GB/T699).

* Terminal Box

The terminal box is arranged at the “right hand side” when looking at the driving end. If the terminal box

is to be arranged at the left-hand side, this fact must be specifically stated when placing the order.

Six terminal studs are provided in the terminal box and a connecting diagram is shown on the back of the cover.  Terminal  markings  used  are  in  full  conformity  with  IEC  publication  34-8.Clearance  between  two neighboring conducting parts is made not less than 8mm and all creepages not less than 12mm.

An extra terminal is provided inside the box for grounding purpose.

* Bearing

Operating Conditions

Temperature of Ambient air        0°C~45°C

Altitude        0m

Relative humidity     ≤95%

Dew          exists

Salt mist                                     exists

Oil mist                                     exists

Fungus        exists Shock          exists

 Vibration            exists

Inclination and swing                                       ±22.5°

Voltage and Frequency

Rated Voltage                       380V or 440V Rated Frequency  50Hz or 60Hz

Ordering Information

1.  When placing an  order,please  specify  motor’s  type,  output,  number  of  poles,  voltage,  frequency, mounting, arrangements and other requirements.

2. Special orders of motors with following design variations can be accepted upon agreement:

a. Double shaft extension.

b. With terminal box on the left-hand side when looking at the driving end.

c. Thermistor protection.