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Translation from Polish 

Form  No. F –K400037/8B

 

CATALOGUE CARD 

K4-15-169

EDITION    

  1 

DFME 

DAMEL S.A.

INDUCTION MINING MOTORS  

2SGS 355L-8/4

 

PAGE      

 1/6 

 

File no: 125 250 kW, 2SGS 355L-8 4.doc/2006 

APPLICATION

  

The two-speed motors of  2SGS type  and mechanical series of 355 are intended for driving mining machines and 
equipment, especially for belt conveyors and scraper belt conveyors. 
The motors can be used in underground parts of mines and surface installations of the mines, where there are 
possible explosion conditions for methane and/or coal dust. 
There is also possible to operate the motors in the surroundings where the explosion-proof equipment is not 
required.  

CHARACTERISTIC FEATURES OF MOTORS 

• 

Induction 3-phase motors with squirrel-cage rotor, with  two independent windings: for synchronous speed of 
750 r.p.m. – so called “slow speed” (2p=8) and for synchronous speed of 1500 r.p.m. – so called “fast speed” 
(2p=4). 

• 

Explosion-proof construction with flame-proof casing of motor “d” - mark 

 I M2 Exd I, equipment  ranked 

as group I of category M2 according to Directive 94/9/CE. 

• 

Degree of protection IP 55 acc. to PN-EN 60034-5:2004. 

• 

The motors are cooled by water flowing through the water channels in body and a channel of bearing’s disk 
P connected in series with the body. 

• 

Form of execution: flanged execution – IM 3001 (B5); flanged FF740. 

• 

 Basic voltage execution: 1000; 1140V – 50Hz . 

After settlement  it is possible to execute the motors for other voltage and frequency of 60Hz. 

• 

Class of insulation: class H – basic execution, class H + reinforced wound insulation – execution against 
order. 

• 

Thermal protection of motors: bimetal sensors (NC) or posistor PTC sensors in winding and bearing nodes – 
two identical circuits: basic and stand-by. 

• 

Temperature control: thermometric resistors Pt 100 in winding and bearing nodes (execution against order). 

• 

Two-inlet terminal box with one or two cable inlets with rubber gaskets selected to the outer diameters of 
conductors, type Wk3u/d... produced by DAMEL (Catalogue Card K4-15-136). 

• 

The motor is equipped with the final link of protection conductor  continuity control circuit, mounted in the 
terminal box  –  primary execution: the final link CK-OA.  

 

After settlement the assembly of final unit CK of other type is possible (e.g. diode+resistor, reverse polarity,    

        etc.) produced by DAMEL (Catalogue card K4-15-121). 
• 

Feeding and start-up: the motors are intended for feeding from the power network – start-up by direct 
switching on the voltage. 

• 

The motors adapted for work in temperate climate.  
After settlement the adaptation for work in tropical climate TA or TH is possible. 

COMPATIBILITY WITH REQUIREMENTS OF STANDARDS 

The motors meet requirements of Directive 94/9/CE (ATEX), European harmonized norms and domestic norms: 

- norms for electrical equipment in areas of explosion hazard: 

EN 60079-0:2004  – Polish equivalent PN-EN 60079-0:2004(U), 

EN 60079-1:2004  – Polish equivalent  PN- EN 60079-1:2004(U), 

EN 60079-7:2003  – Polish equivalent PN-EN 60079-7:2004(U), 

- norms for rotational electric machines: 

EN 60034-1:2004 – Polish equivalent  PN-EN 60034-1:2005(U)  

domestic norms for induction motors for mining machines: 

 PN G-38010:1997 (domestic norm). 

CERTIFICATES 

The motors have the certificates: 
 

certificate CE (ATEX) issued by notified Testing Station GIG KD “BARBARA”, valid on the area of 
European Union. 

  

 

Translated by: PTU -DAMAR- Sosnowiec 

background image

Translation from Polish 

Form  No. F –K400037/8B

 

CATALOGUE CARD 

K4-15-169

EDITION    

  1 

DFME 

DAMEL S.A.

INDUCTION MINING MOTORS  

2SGS 355L-8/4

 

PAGE      

 2/6 

 

File no: 125 250 kW, 2SGS 355L-8 4.doc/2006 
Translated by: PTU -DAMAR- Sosnowiec 

TECHNICAL DATA 

Table 1    

Parameters  

2SGS 

355L-8/4 

 

Rated power   P

[kW]   125/250   

Current at rated voltage 

I

N

[A] 

1000V 

I

N

[A] 

1140V

 105/172 

92/151 

 

Power factor cos

ϕ 

 0,74/0,88   

Efficiency 

η 

[%]   93/95,5   

Rotational speed n 

[min

-1

]   739/1485   

Rated moment M

N

[Nm]  1615/1608   

Multiplicity of start-up current    I

K

/I

N

 5,1/6,8   

Multiplicity of start-up moment   M

K

/M

N

 2,7/2,5   

Multiplicity of critical moment   M

Max

/M

N

 2,7/2,6   

Minimal flow of cooling water  

[dm

3

/min]  

12 

 

Mode of operation 

S1; 

 S4-60%,  75c/h, J

ext

/J

M

=0,6   

Rotor moment of inertia   J

M

  

[kgm

2

]

 

 13   

Mass of motor   

[kg] 

 

2400 

 

1.  The parameters of motor: rated current, efficiency, power factor, rotational speed and rated moment 

relate to rated load at rated feeding conditions – 50Hz. 

2.  Multiplicities of start-up current , start-up moment and critical moment refer to direct connection of the 

motor to the supply network (mains). 

3. J

ext

 – inertia moment of motor load referred to the axis of shaft . 

background image

Translation from Polish 

Form  No. F –K400037/8B

 

CATALOGUE CARD 

K4-15-169

EDITION    

  1 

DFME 

DAMEL S.A.

INDUCTION MINING MOTORS  

2SGS 355L-8/4

 

PAGE      

 3/6 

 

File no: 125 250 kW, 2SGS 355L-8 4.doc/2006 

 

bearing 

winding 

NC bimetals 

or PTC 

posistors 

version without thermometric resistors Pt 100 

NC bimetals 

or PTC 

posistors 

thermometric resistors 

Pt 100

 

version with thermometric resistors Pt 100 

Fig. 1  Diagram of motor connections  

winding, protective terminals, thermal protection. 

 

High pressure hose 

Water outlet 

Water inlet 

Body 

Disk P 

Fig. 2  Diagram of cooling system 

Translated by: PTU -DAMAR- Sosnowiec 

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Translation from Polish 

Form  No. F –K400037/8B

 

CATALOGUE CARD 

K4-15-169

EDITION    

  1 

DFME 

DAMEL S.A.

INDUCTION MINING MOTORS  

2SGS 355L-8/4

 

PAGE      

 4/6 

 

File no: 125 250 kW, 2SGS 355L-8 4.doc/2006 

Water inlet 

Water outlet

Centre hole 
M20 

View W

View P 

Cable inlet 

or stopper 

Cable inlet 

Water inlet 

Water outlet

Table 2 

Flange 

The shaft of 

Diagram 

of cooling 

system 

Cable inlets 

(basic 

execution) 

Form of 

executio

Type of 

motor

acc. to

acc. to 

Fig. 2 

Fig. 3 Assembly and overall dimensions of motors. 

Translated by: PTU -DAMAR- Sosnowiec 

background image

Translation from Polish 

Form  No. F –K400037/8B

 

CATALOGUE CARD 

K4-15-169

EDITION    

  1 

DFME 

DAMEL S.A.

INDUCTION MINING MOTORS  

2SGS 355L-8/4

 

PAGE      

 5/6 

 

File no: 125 250 kW, 2SGS 355L-8 4.doc/2006 

 

CONDITIONS OF OPERATION AND APPLICATION 

• Ambient 

temperature 

0÷40

o

• 

Relative humidity at temperature of  35

o

C 97÷100% 

• 

Height above the sea level 

≤ 1000m 

• 

Degree of corrosive aggressiveness C acc. to  PN-71/H-04651 

• 

Admissible inclination of the shaft axis to level  

< 30

 o

 

• 

Parameters  of cooling water at inlet of cooling system 

maximum temperature  

+30

o

maximum static pressure  

3MPa 

• Supply 

voltage 

(0,95÷1,05)U

N

 

• 

Electrical terminal  

Power supply connection – mining armour conductor with rubber armour and insulation, multicore, screened 
for voltage of 0,6/1kV, with section area of cores selected to operating conditions. 
Connection of auxiliary circuits of temperature sensors and temperature control thermometric elements  – 
auxiliary cores of feeder armour conductor or multicore armoured (control) conductor  with section area of 
wires up to  4mm

2

When connecting the motor with one conductor the other inlet hole of the terminal box is stopped FLP by 
stopper Zk3u. 

• 

Leading the flexible conductors to terminal box through cable inlets selected according to the outer 
diameter of conductors acc. to table 3. 

  Table 3 

Type of inlet 

Conductor 

The range of diameters of conductors for cable inlets 

Wk3u/d80 

40÷44 41÷46 44÷49 48÷53 52÷57  

 

 

 

Wk3u/d100 

Feeding 

     

55÷61 

59÷65 

62÷68 

68÷74 

Wk3u/d47 

Control 

19÷21 

20÷24 

22÷26 

       

In case the Orderer does not state the type of cable inlet (outer diameter of conductor ) the motor is delivered 
with cable inlet and stopper determined acc. to Table 2. 

OFFER FOR DELIVERIES OF MOTORS  

The producer offers motors in primary execution and in options executed against the order from offeree 
(additional, diversified equipment). 

Table 4 

 

 

 

Constructional 

characteristic of motor 

 Primary execution 

Execution against order 

rated voltage 

1000; 1140V other 

voltage 

frequency 50Hz 

60Hz 

form of execution 

Flanged IM 3001(B5) 

– 

class of insulation 

H + reinforced wound insulation 

thermal protection 

– type of sensors 

bimetal  NC 

posistor PTC 

 Temperature control 

- thermometric elements 

– 

 thermometric resistors Pt100 

cable inlets 

two cable inlets Wk3u/d80… 

-see  table 2 

one or two cable inlets Wk3u 

- see table 3, or conductor connection 

final link of control circuit 

 
                  CK-0A 

CK … appointed by Orderer  

(acc. to catalogue card K4-15-121) 

climatic execution 

for temperate climate 

for  tropical climate TH or TA 

constructional characteristic 

other than above mentioned 

– 

acc. to settlements, it can require 

acceptance of  the unit certifying  the 

product 

 

The following items are included to the delivered motors by producer: 
-  service manual, 
- declaration of conformity CE. 

Translated by: PTU -DAMAR- Sosnowiec 

background image

Translation from Polish 

Form  No. F –K400037/8B

 

CATALOGUE CARD 

K4-15-169

EDITION    

  1 

DFME 

DAMEL S.A.

INDUCTION MINING MOTORS  

2SGS 355L-8/4

 

PAGE      

 6/6 

 

File no: 125 250 kW, 2SGS 355L-8 4.doc/2006 
Translated by: PTU -DAMAR- Sosnowiec 

ORDERING PROCEDURE 

The following data should be stated in the order directed to the address of 
manufacturer given below: 

type of motor, power 

rated voltage and frequency   

motor execution: preliminary – see table 4 column 2 or execution against order, for which required 
equipment and constructional characteristic should be determined acc. to table 4 column 3. 

When ordering  we recommend to fill up the questionnaire „Statement of  technical data of the motor...” – 
accessible at internet (web) sites and in Marketing Department of DFME DAMEL. 

 

The producer offers additionally: 

-   guarantee and after guarantee service of motors, 
-   delivery of spare parts, 
-  training of employees in the range of correct maintenance and operating the motor. 

 
 
 
Producer reserves the right to implement to the motor changes resulting from technical progress. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dąbrowska Fabryka Maszyn Elektrycznych DAMEL S. A. 

Aleja Józefa Piłsudskiego 2, 41-300 Dąbrowa Górnicza, POLSKA, tel: (32) 262-32-30 do 39  

Faks (32) 264-34-26, 264-10-12, http: www.damel.com.pl, email: office@damel.com.pl  

 

Elaboration: “DAMEL” – TK/PG/01/2006 


Document Outline