s Test Certificate Type: TGEJ6639M /4GJ66269MZ Sheet. 1 of 1 Year of manuf.: 1999 3 - Phase GEAFOL - Transformer Serial No: K 7 52291 Purchaser: Order No: S-KLAGEN/ 114981 OMYA-UNIVERS.T. Work No: 30727113 S.-Pos.No.: Key word: Standard: IEC 60726*) Tap Volts HV LV1 LV2 Values at 120°C Category LT 7-8 V 6300 and ratio 6000 V / 1725 V Service DB 6-8 V 6150 P 0 kW P K kW U z % Type of cooling AN 6-9 U N V 6000 1725 1725 Guarant. 6.000 25.00 8.00 Rated frequence 50 Hz 5-9 V 5850 Tolerance +15.0 % 10.0 % ±10 % Max. sh. Circ.-duration 2 s 5-10 V 5700 Factory test 5.670 21.32 8.09 Insul. Class HV/LV F Amps. I rat. 343 596 596 Acceptance Type of protection IP00 P rat. kVA 3560 1780 1780 Total weight 7.25 t Imped. U z % 8.09 7.08 7.05 Weight of housing t Tapping 6-9 Diagr. of connect. T8DTZ015/014 Vector-group Dy 5* Dd 0* O.-No. J66V18 Insul. Level HV/LV: WA AC20-LI60 /AC10-LI20 Measurement of winding resistance Value in Ohms at 22 °C Tapping Connection 6-9 1U1-1V1 0.0444400 2U-2V 0.0046261 3U-3V 0.0052650 1V1-1W1 0.0444800 2V-2W 0.0046270 3V-3W 0.0052540 1V1-1W1 0.0444700 2W-2U 0.0046511 3W-3U 0.0053131 Voltage ratio measurement Voltage and vector-group checked according to rating plate. Tapping 7-8 6-8 6-9 5-9 5-10 7-8 6-8 6-9 5-9 5-10 Rat. guar. 3.652 3.565 3.478 3.391 3.304 3.652 3.565 3.478 3.391 3.304 Fault ‰ ≤2.0 ≤2.0 ≤ 2.0 ≤ 2.0 ≤ 2.0 ≤ ≤ 2.0 ≤2.0 ≤2.0 ≤2.0 ≤2.0 Measurement of no-load losses and current Connection : 2U-2V-2W at 50 Hz U V I A Instrument transf. range Losses kW I 0U I 0V I 0W I 0 average I 0 /I N % Cu Ci P 0 1725.0 7.404 5.963 7.802 7.056 1.18 3000 10.00 5.670 Connection : 1U-1V-1W Measurement of load losses and imped. voltage Short circ.: 2U-2V-2W / 3U-3V-3W at 50 Hz and 22 °C Syst. I A U V U Z % Instrument transf. range Losses kW at 22 °C Cu Ci P k ’ (I N ) at 22 °C P k ’ (I N ) at 120°C 1 171.3 424.2 7.07 500 250.00 10.43 11.81 2 171.3 422.7 7.04 500 250.00 10.80 12.31 1+2 343.0 485.1 8.08 500 500.00 17.29 21.32 AC withstand voltage tests U kV f Hz t min Losses at 22 °C Losses at 120°C Applied voltage test HV 20 50 1 LV1 LV2 LV1 LV2 Applied voltage test LV1 10 50 1 P k (I N )= 10.43 10.80 kW Σ I N 2 ⋅R= 8.92 9.40 kW Applied voltage test LV2 10 50 1 Σ I N 2 ⋅R= 6.39 6.73 kW P z = 2.90 2.91 kW Induced voltage test LV1 3.450 200 2.5 P z = 4.04 4.07 kW P k (I N )= 11.81 12.31 kW Remarks: It has been proven by tests that the windings are free from partial discharge up to twice the rated voltage. (measuring sensitivity ≤ 5 pC) *) and IEC 60146 * Phaseshift +7.5 Grad * Phaseshift -7.5 Grad checked. Environment class: E2 Climate class: C2 Firecat class: F1 Trafo-Union Date: Checked: Testfield, Kirchheim/ Teck, 16.09.99 Geibel ALT_PN3GEAFOLS0EL0000.dot

GEAFOL 6kV_K752291

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ssss Test Certificate

Type: TGEJ6639M /4GJ66269MZ Sheet. 1 of 1 Year of manuf.: 1999

3 - Phase GEAFOL - Transformer Serial No: K 7 52291

Purchaser: Order No: S-KLAGEN/ 114981 OMYA-UNIVERS.T. Work No: 30727113 S.-Pos.No.: Key word: Standard: IEC 60726*) Tap Volts HV LV1 LV2 Values at 120°C Category LT 7-8 V 6300 and ratio 6000 V / 1725 V

Service DB 6-8 V 6150 P0 kW PK kW Uz %

Type of cooling AN 6-9 UN V 6000 1725 1725 Guarant. 6.000 25.00 8.00

Rated frequence 50 Hz 5-9 V 5850 Tolerance +15.0 % 10.0 % ±10 % Max. sh. Circ.-duration 2 s 5-10 V 5700 Factory test 5.670 21.32 8.09

Insul. Class HV/LV F Amps. Irat. 343 596 596 Acceptance

Type of protection IP00 Prat. kVA 3560 1780 1780 Total weight 7.25 t Imped. Uz % 8.09 7.08 7.05 Weight of housing t

Tapping 6-9 Diagr. of connect. T8DTZ015/014

Vector-group Dy 5* Dd 0* O.-No. J66V18

Insul. Level HV/LV: WA

AC20-LI60 /AC10-LI20

Measurement of winding resistance Value in Ohms at 22 °C Tapping Connection 6-9

1U1-1V1 0.0444400 2U-2V 0.0046261 3U-3V 0.0052650

1V1-1W1 0.0444800 2V-2W 0.0046270 3V-3W 0.0052540

1V1-1W1 0.0444700 2W-2U 0.0046511 3W-3U 0.0053131

Voltage ratio measurement Voltage and vector-group checked according to rating plate.

Tapping 7-8 6-8 6-9 5-9 5-10 7-8 6-8 6-9 5-9 5-10

Rat. guar. 3.652 3.565 3.478 3.391 3.304 3.652 3.565 3.478 3.391 3.304

Fault ‰ ≤2.0 ≤2.0 ≤ 2.0 ≤ 2.0 ≤ 2.0 ≤ ≤ 2.0 ≤2.0 ≤2.0 ≤2.0 ≤2.0

Measurement of no-load losses and current Connection : 2U-2V-2W at 50 Hz

U V I A Instrument transf. range Losses kW

I0U I0V I0W I0 average I0/IN % Cu Ci P0

1725.0 7.404 5.963 7.802 7.056 1.18 3000 10.00 5.670

Connection : 1U-1V-1W Measurement of load losses and imped. voltage Short circ.: 2U-2V-2W / 3U-3V-3W at 50 Hz and 22 °C

Syst. I A U V UZ % Instrument transf. range Losses kW

at 22 °C Cu Ci Pk’ (IN) at 22 °C P k’ (IN) at 120°C

1 171.3 424.2 7.07 500 250.00 10.43 11.81

2 171.3 422.7 7.04 500 250.00 10.80 12.31

1+2 343.0 485.1 8.08 500 500.00 17.29 21.32

AC withstand voltage tests U kV f Hz t min Losses at 22 °C Losses at 120°C

Applied voltage test HV 20 50 1 LV1 LV2 LV1 LV2

Applied voltage test LV1 10 50 1 Pk (IN)= 10.43 10.80 kW Σ IN2⋅R= 8.92 9.40 kW

Applied voltage test LV2 10 50 1 Σ IN2⋅R= 6.39 6.73 kW Pz= 2.90 2.91 kW

Induced voltage test LV1 3.450 200 2.5 Pz= 4.04 4.07 kW Pk (IN)= 11.81 12.31 kW

Remarks: It has been proven by tests that the windings are free from partial discharge up to twice the rated voltage. (measuring sensitivity ≤ 5 pC) *) and IEC 60146 * Phaseshift +7.5 Grad * Phaseshift -7.5 Grad checked.

Environment class: E2 Climate class: C2 Firecat class: F1

Trafo-Union Date: Checked: Testfield, Kirchheim/ Teck, 16.09.99 Geibel

ALT_PN3GEAFOLS0EL0000.dot