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Using the generator

The  frequency,  and  therefore  the  number  of  motor 

revolutions, is maintained constant by the motor’s speed 

regulation system.

Generally,  this  regulator  is  of  a  mechanical  type  and 

presents a droop from no-load to nominal load  which 

is  less  than  5  %  (static  or  droop),  while  under  static 

conditions precision is maintained within ±1%.Therefore, 

for  generators  at  50Hz  the  no-load  frequency  can  be 

52–52.5 Hz, while for generators at 60Hz the no-load 

frequency can be 62.5-63Hz.

In some motors or for special requirements the speed 

regulator is electronic; in these cases, precision under 

static    operating  conditions  attains  ±0.25%,  and  the 

frequency is maintained constant in operation from no-

load to load (isochronal operation).

POWER FACTOR - COS 

ϕ

The power factor is a value which depends on the load’s 

electrical  specifications;  it  indicates  the  ratio  between 

the Active Power (kW) and Apparent Power (kVA). The 

apparent power is the total power necessary for the load, 

achieved  from  the  sum  of  the  active  power  supplied 

by the motor (after the alternator has transformed the 

mechanical power into electrical power), and the Reactive 

Power (kVAR) supplied by the alternator. The nominal 

value for the power factor is cos

 ϕ

 = 0,8; for different 

values comprised between 0.8 and 1 it is important during 

usage not to exceed the declared active power (kW), so 

as to not overload the electricity-generating group motor; 

the apparent power (kVA) will diminish proportionally to 

the increase of cos 

ϕ

.

For cos 

ϕ

 values of less than 0.8 the alternator must 

be  downgraded,  since  at  equal  apparent  power  the 

alternator should supply a greater reactive power. For 

reduction  coefficients,  contact  the  Technical  Service 

Department.

START-UP OF ASYNCHRONOUS MOTORS

The start-up of asynchronous motors from an electricity-

generating group can prove critical because of high start-

up currents the asynchronous motor requires (I start-up 

= up to 8 times the nominal current In.). The start-up 

current  must  not  exceed  the  alternator’s  admissible 

overload current for brief periods, generally in the order 

of 250–300% for 10–15 seconds.

To avoid a group oversize, we recommend following these 

precautionary measures:

-  in the case of a start-up of several motors, subdivide the 

motors into groups and set up their start-up at intervals 

of 30–60 seconds.

-  when  the  operating  machine  coupled  to  the  motor 

allows it, see to a start-up with reduced voltage, star 

point/triangle start-up or with autotransformer, or use 

a soft-start system.

In all cases, when the user circuit requires the start-up 

of an asynchronous motor, it is necessary to check that 

there are no utilities inserted into the installation, which 

in the case of a voltage droop can cause more or less 

serious disservices (opening of contact points, temporary 

lack of power to control and command systems, etc.).

12/06/03 

 M37GB_1500G_GE

SINGLE-PHASE LOADS 

Power to monophase utilities by means of three-phase 

generators requires some operating limitations.

-  In  single-phase  operation,  the  declared  voltage 

tolerance can no longer be maintained by the regulator 

(compound or electronic regulator), since the system 

becomes highly unbalanced.

 The voltage variation 

on the phases not affected by the power can prove 

dangerous;  we  recommend  sectioning  the  other 

loads eventually connected

.            

-  The  maximum  power  which  can  be  drawn  between 

Neutral and Phase (start connection) is generally 1/3 

of  the  nominal  three-phase  power;  some  types  of 

alternators even allow for 40%. Between two Phases 

(triangle  connection)  the  maximum  power  cannot 

exceed 2/3 of the declared three-phase power.

-  In  electricity-generating  groups  equipped  with 

monophase sockets, use these sockets for connecting 

the loads. In other cases, always use the "R" phase 

and Neutral.

ELECTRIC PROTECTIONS

THERMAL-MAGNETIC SWITCH

The  electricity-generating  group  is  protected  against 

short-circuits  and  against  overloads  by  a  thermal-

magnetic  switch  (Z2)  situated  upstream  from  the 

installation.  Operating  currents,  both  thermic  and 

magnetic, can be fixed or adjustable in relation to the 

switch model.

+

 

In models with adjustable ope-

rating  current 

do  not  modify

  the 

settings, since doing so can com-

promise the installation’s protection 

or the electricity-generating group’s 

output characteristics. For eventual 

variations,  contact  our  Technical 

Service Department.

The  intervention  of  the  protection  feature  against 

overloads  is  not  instantaneous,  but  follows  a  current 

overload/time  outline;  the  greater  the  overload 

the  less  the  intervention. 

Furthermore,  keep  in  mind 

that  the  nominal  operating 

current refers to an operating 

temperature  of  30°C,  so 

that each variation of 10°C 

roughly corresponds to a variation of 5% on the value of 

nominal current.

In  case  of  an  intervention  on  the  part  of  the  thermal 

magnetic  protection  device,  check  that  the  total 

absorption  does  not  exceed  the  electricity-generating 

group’s nominal current.

M

37.

1

REV.1-09/05

Summary of Contents for GE 20 YSX

Page 1: ...USE AND MAINTENANCE MANUAL MOSA 25 09 12 84920M00 preparato da UPT approvato da DITE GE 20 YSX 849209003 GB 0 3 1 3...

Page 2: ...des a tank an engine alternator unit fixed on the base by elastic dampers a roll bar with hook for an easy and sure lifting a chest hinged to the roll bar for a quick access to the engine and to the a...

Page 3: ...continue to satisfy the needs of its clients aswell as to improve the transparency and thecom munications regarding all the company s activesin accordance with the official procedures and inhar mony w...

Page 4: ...INSTALLATION M 2 7 INSTALLATION AND DIMENSIONS M 3 UNPACKING M 4 2 TRANSPORT AND HANDLING M 6 20 CTL 20 ASSEMBLY M 20 SET UP FOR OPERATION M 21 START AND STOP M 31 CONTROLS M 32 CONTROLS M 39 12 EP6...

Page 5: ...matter In no case MOSA division of B C S S p A will be held responsible for any damaga direct or indirect in relation with the use of the given information MOSA division of B C S S p A does not take...

Page 6: ...mpness and heat You must take into account that some figures contained in it want only to identify the described parts and therefore might not correspond to the machine in your possession INFORMATION...

Page 7: ...elf the list of these directives is part of the declaration of conformity included in any machine standard equipment Here below the adopted symbol CE marking is clearly readable and unerasable and it...

Page 8: ...mber ______________________________ conforme con quanto previsto dalle Direttive Comunitarie e relative modifiche est en conformit avec ce qui est pr vu par les Directives Communautaires et relatives...

Page 9: ...wer PRP maximum available power for use at variable loads for a yearly illimited number of hours The average power to be taken during a period of 24 h must not be over 80 of the PRP It s admitted over...

Page 10: ...persons or things Do not use without protective devices provided Removing or disabling protective devices on the machine is prohibited Do not use the machine if it is not in good technical condition...

Page 11: ...ersons Use only with safety clothing It is compulsory to use the personal protection means given in equip ment Use only with safety clothing It is compulsory to use the personal protection means given...

Page 12: ...tely Wipe up spilled fuel before starting engine An electric shock can kill Shut off fuel of tank when moving machine where it is assembled Avoid spilling fuel on hot engine Sparks may cause the explo...

Page 13: ...s are equipped with a control system that is NOT influenced by standard environmental fac tors and is able to stop the unit in case of anomalous values in the fundamental parameters In order to avoid...

Page 14: ...nce no specific mea sures are needed in this regard In case of doubts concerning your genset do not hesitate to contact our technical sales office Installation instructions M 2 6 1 REV 0 06 10 ATTENTI...

Page 15: ...fix the genset to it by using screw anchors or rag bolts Base dimensions should exceed genset dimensions of at least 200 mm on each side Base should weigh three times static genset weight indicated on...

Page 16: ...duct should be evaluated If the duct is not appropriately insulated room temperature may in crease considerably for this reason it may be necessary to install an electro ventilator for correct air ex...

Page 17: ...Installazione Installation Installation Luftzirkulation Instalaci n GE 20 YSX M 2 7 REV 0 09 12 27 09 12 84920 I...

Page 18: ...Dimensioni Dimensions Dimensions Abmessungen Dimensiones GE 20 YSX M 2 7 1 REV 0 09 12 27 09 12 84920 I...

Page 19: ...rough handling or taking away of parts contained inside the packing or in the set In case you find damages rough handling or absence of parts envelopes manuals etc we advise you to inform immediately...

Page 20: ...ide the panel and to the instruments on the front To access the hook points on the top of the unit use approved ladders only or support from another opera tor climb the ladder using non skid shoes ATT...

Page 21: ...nnected to the generating set baseframe it can not be towed on public roads Therefore it can only be used on private roads and no through traffic zones The maximum speed allowed is 40 km h on smooth s...

Page 22: ...the machine to the ground and place the parking foot definitively regulating at the suitable height ATTENTION Do not substitute the original tires with other types 7 8 9 Nota Lift the machine and asse...

Page 23: ...he state of the battery from the colour of the warning light which is in the upper part Green colour battery OK Black colour battery to be recharged White colour battery to be replaced DO NOT OPEN THE...

Page 24: ...t an easy job A lack in tacking these precautions would result in the mix of different additives used in different coolants which would originate gelatinous substances capable of obstructing the cooli...

Page 25: ...ng and on the display the word fail appears Turning the key on OFF the EP6 is reset and a new starting cycle can be fixed Stop it is COMPULSORY to disconnect the load first then to stop the engine tur...

Page 26: ...ing light PTO HI B5 Auxiliary current push button C2 Fuel level light C3 E A S PCB C6 Control unit for generating sets QEA D Ground fault interrupter 30 mA D1 Engine control unit and economiser EP1 D2...

Page 27: ...Comandi Controls Commandes Mandos GE 20 YSX M 31...

Page 28: ...ol tage operation messages 15 A C socket AUX sockets for load connection I6 Start Local Remote selector Selection of engine control in use Local start control on board EP6 operated Remote start extern...

Page 29: ...0 In case of an Automatic Periodic Test A P T the display will show the message tESt 2 2 MANUAL operating mode To start the engine follow the instructions A Turn ON the KEY SWITCH the EP6 illuminates...

Page 30: ...matically anytime the key switch is turned ON The LEDs and DISPLAY light up for about 1 second 6 0 Parameters and settings The unit is programmed by the supplier of the Gen erating Set Contact the Gen...

Page 31: ...ing for at least 2 seconds the EP6 will energize the over voltage protection Hi U see section 4 0 to stop the engine The inh code inhibits the over voltage P 8 Generator Under Frequency Inh inh 1 to 9...

Page 32: ...P 24 P 24 Crank OFF Inh Crank Termination setting 100 800 rpm If the speed rises above the setting the EP6 terminates the crank cycle One sec onddelay avoids false termination The code Inh inhibits t...

Page 33: ...rror accumulation and in case your unit is programmed to allowAutomatic Periodic Test we recommend the following procedures disconnect the power supply of the EP6 consult your genset supplier wait for...

Page 34: ...ions and nominal values for voltage frequency power factors cos There are various types of power PRIME POWER PRP STAND BY POWER established by ISO 8528 1 and 3046 1 Norms and their definitions are lis...

Page 35: ...e motor allows it see to a start up with reduced voltage star point triangle start up or with autotransformer or use a soft start system In all cases when the user circuit requires the start up of an...

Page 36: ...tection forcefully pressed to prevent its intervention ATTENTION USAGE WITH EAS AUTOMATIC START UP PANEL The electricity generating group in combination with the EAS automatic start up panel forms a u...

Page 37: ...ng NOTE LEGEND A3 1 Adjustment potentiometer insulation resi stance A3 2 Manual reset push button A3 3 Test push button A3 4 Auxiliary fedding presence LED A3 5 TRIP LED A3 2 A3 3 A3 1 A3 5 A3 4 RESET...

Page 38: ...e front plate X1 and or rear plate with a multiple connector N B The remote control TCM 35 can be used only with machines equipped with control and protection device EP6 U7 For use of TCM 35 see page...

Page 39: ...ernal tank at the same level of the generator the minimum diameter of the connecting hoses must be 15 mm the maximum length of the connecting hoses must be 5m A pressure sensor on the return pipe of t...

Page 40: ...s and connections daily Clean periodically using a vacuum cleaner DO NOT USE COMPRESSED AIR DECALS AND LABELS All warning and decals should be checked once a year and replaced if missing or unreadable...

Page 41: ...year even if the requested number of hours has not been attained EVERY WEEK EVERY MONTH AND OR AFTER INTERVENTION ON LOAD EVERY YEAR 1 TEST orAUTOMATIC TEST cycle to keep the generating set constantl...

Page 42: ...e Department Black smoke 1 Air filter clogged 2 Overload 3 Injectors defective Injection pump requires calibration 1 Clean or replace 2 Check the load connected and diminish 3 Ask for intervention of...

Page 43: ...motor running speed 2 Voltage regulating device where it is assembled defective or requires calibration 3 Alternator defective 1 Regulate speed to its nominal no load value 2 Adjust regulator device...

Page 44: ...he covers and all the other parts of the machine carefully Protect the machine with a plastic hood and store it in o dry place DIESEL ENGINE For short periods of time it is advisable about every 10 da...

Page 45: ...f the various components of the machine must be made accordingly to rules in force of law a o local rules Particular attention must be paid when getting rid of lubricating oils battery electrolyte and...

Page 46: ...filter clogging T4 Warning light air filter clogging U4 Polarity inverter remote control V4 Polarity inverter switch Z4 Transformer 230 48V W4 Diode bridge polarity change X4 Base current diode bridge...

Page 47: ...GE 15 YSX GE 20 YSX M 61 REV 0 09 12 Schema elettrico Electric diagram Schemas electriques Stromlaufplan Esquema el ctrico 27 09 12 84910 I...

Page 48: ...o di n Pag n 4 Date Appr Approved Project Denomination Machine Modification Date Da Pag Alla Pag To Page From Page Designer of n Desi Dis n Exp Page n Dwg n Disegnatore 5 5 4 3 27 26 3 4 26 27 3 27 4...

Page 49: ...GE 20 YSX M 61 3 REV 0 09 12 Schema elettrico Electric diagram Schemas electriques I GB F D E NL Stromlaufplan Esquema el ctrico 27 09 12 84920 I...

Page 50: ......

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