Generator Test Report

Customer :

Project name : Reparatie Weier DVSGF400/4L

Project :

EMRI reference :

Date :

32141935

06-03-2015

Certion B.V.

P1033

-Main rotor windings 1500 V 60 sec Passed

Hig voltage testComponent: Voltage level Duration Result

Main stator windings n/a V n/a sec

Testdata

No

lo

ad

da

ta

No

loa

d d

ata N

o l

oa

d d

ata

No

loa

d d

ata

PassedMain rotor windings 1000 V >4000 MΩ Passed

Insulation Resistance testsComponent: Megger voltage Value after 60 sec. Result

Main stator windings 1000 V >4000 MΩ

Enclosure: IP54 Rotation speed: 1620 Rpm

Serial no: 594947 Current: 666 AInsulation class: H Frequency: 50 Hz

Make: Weier Power: 860 kWType: DVSGF 400/4L SP Voltage: 690 V

Project name: Reparatie Weier EMRI order number: 32141935

Generator details

Generator Test Report

General informationCustomer: Certion B.V. Customer reference: P1033

42141935 - Test Report Versie: 1.0 Testrun generator

Acceptance test approvalRepair Engineer(s): Test Engineer(s): Certificate number: Fill in date:

NYI / MAH SLU / EME 32141935 06-03-15

- Testrun performed after general overhaul, including renewal of bearings.- Rotor rewound (round wire / random wound / insulation class H)- DE and NDE bearing seating (bore) repaired.- All tests passed succesfully.

Overall rating of vibration level (ISO2372): PassedGauge SPM, type T30, serial number: 9750013

Remarks

mm/secAxial 5: 0,70 mm/sec 6: 0,70 mm/secVertical 3: 0,70 mm/sec 4: 0,80

Vibration measurement (ISO 2372) - idle / unloadedHorizontal 1: 0,80 mm/sec 2: 1,00 mm/sec

Bearing type (DE): 6324 - C4 Remarks (DE): DE bearing renewed on 04-03-2015Bearing type (NDE): 6230 - C4 Remarks (NDE): NDE bearing renewed on 04-03-2015

Driven End (DE): 22,0 9,0 4,0 PassedNon Driven End (NDE): 23,0 6,0 2,0 Passed

Bearing conditions (Shock pulse measurement) Value: Bearing:

Initial value (dBi)

Max. value (dBm)

Carpet value (dBc) Result

150,010 mmBore (after repair) 260,021 mm Bore (after repair) 270,028 mm

Shaft: m5 Bore: H7Shaft (original) 120,025 mm Shaft (original)

Condition bearing seatingDriven End (DE) Non Driven End (NDE)

Applicable tolerance class Shaft: m5 Bore: H6 Applicable tolerance class

5 6

3 4

1 2

42141935 - Test Report Versie: 1.0 Testrun generator

1500 rpm1800 rpm

2,6 x mx m

750 rpm1000 rpm

x m3,0 x m5,0x m

20,018,0 x m

8,0 x m7,0 x m

x m

DVSGF400/4LSP Diameter driven end: 139,5Diameter non driven end:

33,0 x m16,0 x m12,0

mm

50,1

nci

ng

Type:

Balancing data

Admissible tolerance (DE): 6,500 g6,50046,5 g.mm Admissible tolerance (NDE):

3600 rpm

Balancing details

x m9,0 x m6,0 x m

x m12,0

127,5

1300 kg2300

32141935

mm

mmObject length:

Reparatie Weier

Rotor

Dynamic Balancing Report

General information

Object detailsObject:

Project name:Customer: P1033

RpmBalancing speed:

Certion B.V.EMRI order number:Customer reference:

Manufacturer:

Serial number: 594947

Object mass:Weier

3000 rpm

Balancing criteria according to ISO1940 (VDI 2060)

Rotating speed (rpm)Acceptable inbalance [U]

G = 1,0 [g.mm]G = 2,5 [g.mm]G = 6,3 [g.mm]

40,0

g.mm

35,0 x m25,0

Rpm

Admissible tolerance (NDE):

637Key way situation in shaft: Half keyBalancing standard: G = 2,5 [g.mm] Operational speed: 2000

gAdmissible tolerance (DE):

85,0 x m63,0 x m

42141935 - Test Report Versie: 1.0 Balancing report

MAH EME 32141935 27-02-15

Balancing results approvalBalancing Engineer(s): Approved by: Certificate number: Fill in date:

Remarks

- Dynamic balancing of rotor performed after rewinding.

Calib

ration

data

Res

ult

s b

efo

re b

alan

Res

ult

s af

ter

bal

anci

ng

42141935 - Test Report Versie: 1.0 Balancing report

Determined a defect in rotor windings during surge-test Determined a defect in rotor windings during surge-test

Picture 3 Picture 4

Picture 1 Picture 2

P1033Project name: Reparatie Weier EMRI order number: 32141935

Pictures

General informationCustomer: Certion B.V. Customer reference:

Rewinding of rotor Last coils inserted inside rotor slots. Rotor prepared for connecting and insulating

Rotor after pyrolising and removal of windings.Slots and rotor core prepared for new coils

New copper coils prepared

Picture 5 Picture 6

42141935 - Test Report 1-4-2015 Pictures (1)

Pictures

General informationCustomer: Certion B.V. Customer reference: P1033Project name: Reparatie Weier EMRI order number: 32141935

Picture 7 Picture 8

Applying rotor bandage Connecting insulated rings to rotor windings

Picture 9 Picture 10

Picture 12

Rotor prepared for dynamic balancing Dynamic balancing of rotor(check balancing report for results)

Final stage of rotor rewindingPreparing rotor for Vacuum Pressure Impregnation

(VPI process)

Rotor after VPI process

Picture 11

42141935 - Test Report 1-4-2015 Pictures (2)

Stator and parts prepared for assembly Stator windings after cleaning, drying and impregnation

Picture 15 Picture 16

Project name: Reparatie Weier EMRI order number: 32141935

Picture 13 Picture 14

Pictures

General informationCustomer: Certion B.V. Customer reference: P1033

Assembly of generator Generator after final test and spray painting

Repaired DE and NDE bearing shields NDE bearing shield - Ceremic material applied for current insulation

Picture 17 Picture 18

42141935 - Test Report 1-4-2015 Pictures (3)