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CATALOGUE CARD 

K4-15-135 

ISSUE

    

  2 

 

MINING INDUCTION MOTORS 

2SG4 225S-4 i SG4 225M-4 

PAGE

      

1/1 

 

File No: 36, 45 kW 2SG4 225S-4 i SG4 225M-4.doc/2005 
Translated by: PTU -DAMAR- Sosnowiec 
 
 
 

APPLICATION

  

The one-speed motors of  2SG4 225S-4 and SG4 225M-4A  are intended for driving mining machines and 
equipment, and  especially for driving transport conveyors and loader in combined cutter loaders. 
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 opearte 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, 

• 

Explosion-proof construction with flame-proof casing of motor „d” and terminal box of reinforced construction “e” 
- mark 

 I M2 EExde I to 1100V or explosion-proof construction with flame-proof casing of motor and terminal 

box  “d”- mark 

 I M2 EExde I to 1140V, equipment  ranked as  group I of category M2 according to Directive 

94/9/EC, 

• 

The degree of protection IP 55 acc. to PN-EN 60034-5:2002U, 

• 

The motors are cooled by water flowing through the channels in body , 

• 

The form of execution: special flanged execution – IM 3001(B5), 

• 

Basic voltage execution: 1000; 1140 V – 50 Hz 

 

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

• 

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

• 

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

• 

Single-inlet terminal box with one cable inlet with rubber gasket selected to the outer diameter of conductor of type  
54235.2....or 54345.02  produced by Gothe, 

• 

The motor is equipped with the final link of protection conductor  continuity control circuit, mounted in the 
terminal box  –  primary execution: 8SX 9006-0AA00 (diode + resistor) produced by Bartec,   

        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 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/EC (ATEX), european harmonized standards and domestic 
norms: 
- norms for electrical equipment in areas of explosion hazard: 

-  EN 50014:1997+A1:1999+A2:1999 – Polish equivalent PN-EN 50014:2002U, 
-  EN 50018:2000+A1:2002 – Polish equivalent  PN-EN 50018:2002U, 
-  EN 50019:2000 – Polish equivalent PN-EN 50019:2002U, 

- norms for rotational electric machines: 

-  EN 60034-1:1998+A1:1998+A2:1999+AC:2000 – Polish equivalent  PN-EN 60034-1:2001  

- domestic norms for induction motors for mining machines: 

-    PN G-38010:1997 (domestic norm). 

CERTIFICATES 

The motors have the certificates: 

certificate EC ( ATEX ) issued by notified Testing Station FTZÚ, 

valid on the area of European Union. 

 

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CATALOGUE CARD 

K4-15-135 

ISSUE

    

  2 

 

MINING INDUCTION MOTORS 

2SG4 225S-4 i SG4 225M-4 

PAGE

      

2/2 

 

File No: 36, 45 kW 2SG4 225S-4 i SG4 225M-4.doc/2005 
Translated by: PTU -DAMAR- Sosnowiec 
 
 
 

TECHNICAL DATA 

Table 1    

 

Parameters 

2SG4 225S-4 

SG4 225M-4 

Rated power   P

 [kW] 

36 

45 

Current at rated voltage 

I

N

[A] 1000V 

I

N

[A] 1140V

 

28 

24,5 

33 
29 

Power factor  cos

φ 

0,85 0,89 

Efficiency  

η  

[%] 88 

90 

Rotational speed  n 

[1/min] 

1450 

1450 

Rated moment    M

N

 [Nm] 

237 

296 

Multiplicity of start-up current    

I

K

/I

N

 

 6,6 

6,6 

Multiplicity of start-up moment

 M

K

/M

 2,8 

2,8 

Multiplicity of critical moment   

M

max

/M

N

 

 3,0 

2,7 

Min. flow of cooling water  

[dm

3

/min] 8 

10 

Mode of operation 

 

S1;  

S4-60%, 40c/h J

ext

/J

M

=2   

S1;  

S4-60%, 40c/h J

ext

/J

M

=1   

Rotor moment of inertia   J

M

 kgm

0,17 0,19 

Mass of the motor 

kg 

300 

320 

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 shaft of motor 

 

 

Fig.1 Diagram of motor connections 
 

 

Fig.2 Diagram of cooling system 

THERMOBIMETAL 

BEARINGS  

WINDING   

BEARING

S

 

WINDING  

WINDING  

WINDING  

WINDING  

Water inlet 

Water outlet 

Overpressure valve 

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CATALOGUE CARD 

K4-15-135 

ISSUE

    

  2 

 

MINING INDUCTION MOTORS 

2SG4 225S-4 i SG4 225M-4 

PAGE

      

3/3 

 

File No: 36, 45 kW 2SG4 225S-4 i SG4 225M-4.doc/2005 
Translated by: PTU -DAMAR- Sosnowiec 
 
 
 

 

 

Fig.3 Overall and assembly dimensions 

for 

for 

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CATALOGUE CARD 

K4-15-135 

ISSUE

    

  2 

 

MINING INDUCTION MOTORS 

2SG4 225S-4 i SG4 225M-4 

PAGE

      

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File No: 36, 45 kW 2SG4 225S-4 i SG4 225M-4.doc/2005 
Translated by: PTU -DAMAR- Sosnowiec 
 
 
 

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  

 

≤ 45

 o

 

• 

Parameters  of cooling water at inlet of cooling system 

maximum temperature  

 

+40

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 circuits of temperature sensors– auxiliary cores of feeder armour cable  with section area of wires 
up to  4mm

2

• 

Leading the armour conductors to terminal box through cable inlets selected according to the outer diameter of 
conductors acc. to table 2. 

 

 

 

    Table 

Type of inlet 

The range of diameters of conductors for cable inlets 

54235.02… 

or 54345.02… 

18-21 

 

20-24 

 

22-26 25-28 28-32 32-36 

 

In case the Orderer does not state the type of cable inlet with outer diameter of conductor the motor is 
delivered with cable inlet acc. to Table 3, column 2. 

background image

 

 

 

CATALOGUE CARD 

K4-15-135 

ISSUE

    

  2 

 

MINING INDUCTION MOTORS 

2SG4 225S-4 i SG4 225M-4 

PAGE

      

5/5 

 

File No: 36, 45 kW 2SG4 225S-4 i SG4 225M-4.doc/2005 
Translated by: PTU -DAMAR- Sosnowiec 
 
 
 

OFFER FOR DELIVERIES OF MOTORS  

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

  Table 3 

 

 

 

Constructional 

characteristic of  motor 

Primary execution 

3

Execution against order 

rated voltage 

1000; 1140V other 

voltage 

frequency 50Hz 

50/60Hz 

class of insulation  

 H + reinforced wound insulation 

thermal 

protection – type of sensors 

posistor PTC 

bimetal NC 

posistor PTC 

bimetal NC or other  

temperature control 

– thermometric elements  

– 

thermometric resistors Pt100 

cable inlets 

54235.2-24 box „d” 1140V   

or 54345.2-24 box „e” 1000V 

 54235.2-…   

or 54345.2-… 

with selected gasket - see table 2 

final link  

of control circuit 

8SX 9006-0AA00 (diode + resistor) 

produced by Bartec.  

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 motor: 

- running-technical documentation ( RTD - Service Manual of the motor). 
- declaration of conformity EC.

 

 

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 3 column 2 or execution against order, for which required 
equipment and constructional characteristic should be determined acc. to table 3 column 3. 

When ordering  we recommend to fill up the questionary „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, 
-   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/LP/10/2004 

 

Date of translati0on  :     August 24, 2005