Download DAMPING RESISTOR

DOC. NR. :
BC DA 04 05 004
TEST REPORT
HEAT RUN TEST
MICROELETTRICA SCIENTIFICA
M.S. RESISTANCES
MILANO
ITALY
________________
_________________
Rev. 0
Pag. 1 di 10
test report abb-rte1.doc
DAMPING RESISTOR
• Customer
:
ABB Power Technologies AB
• Project
:
RTE
• Purchase order
:
40605-301-302-303-304
• Order acknowledg.
:
O DA 04 05 004
• Equipment under test
0
Rev.
Issue
Description
:Harmonic Filter Damping Resistor
63kV - 214 Ohms (2 paths) 130,1kW - 325kVBIL
Date
G. Coti
Prepared
Ortile
Approved
DOC. NR. :
MICROELETTRICA SCIENTIFICA
M.S. RESISTANCES
MILANO
ITALY
________________
test report abb-rte1.doc
TEST REPORT
HEAT RUN TEST
BC DA 04 05 004
_________________
Rev. 0
Pag. 2 di 10
Index
1
TEST OBJECT ........................................................................................................................................................ 3
2
PROCEDURE FOR ROUTINE & HEAT RUN TYPE TEST FOR HARMONIC FILTER RESISTORS.... 4
ROUTINE TESTS ................................................................................................................................................................ 4
RESISTORS CUBICLES PREPARATION ............................................................................................................................... 4
HEAT RUN TESTS PROCESS .............................................................................................................................................. 4
3
ROUTINE TEST REPORT .................................................................................................................................... 5
4
HEAT RUN TEST ................................................................................................................................................... 5
5
MEASUREMENT AFTER THE “HEAT RUN TEST “...................................................................................... 5
6
GRAPHIC & PICTURES ....................................................................................................................................... 6
DOC. NR. :
TEST REPORT
HEAT RUN TEST
MICROELETTRICA SCIENTIFICA
M.S. RESISTANCES
MILANO
ITALY
________________
test report abb-rte1.doc
BC DA 04 05 004
_________________
Rev. 0
Pag. 3 di 10
The test on a complete unit was carried out on 07-09.2004 at MICROELETTRICA SCIENTIFICA.
Test performed by :
Test witnessed by :
1
Mr. M. Cervelli ( MICROELETTRICA SCIENTIFICA )
Mr T. Ortile ( MICROELETTRICA SCIENTIFICA )
Mr L. MEFTAH ( MICROELETTRICA SCIENTIFICA RESISTANCES )
Mr S. DUMAS ( RTE )
Test object
• One Damping Resistor in module
•
•
•
•
Serial number
Year of construction
Ohmic value at 20 ºC
Nominal Power
:
:dimensions and data as per
dwg. CDA 04 05 004
:O DA 04 05 004 –1 / 027
:2004
:2.59 ±5%
:130.1 Kw
DOC. NR. :
MICROELETTRICA SCIENTIFICA
M.S. RESISTANCES
MILANO
ITALY
________________
test report abb-rte1.doc
2
TEST REPORT
HEAT RUN TEST
BC DA 04 05 004
_________________
Rev. 0
Pag. 4 di 10
PROCEDURE FOR ROUTINE & HEAT RUN TYPE TEST FOR HARMONIC FILTER RESISTORS
Routine tests
Visual Inspection
Dimensional Check
Measurement of Insulation Resistance
Measurement of Resistance (The resistor can be measured under DC and AC together)
Inductance Test @ 50 Hz will be avoided due to poor measurement stability for inductance
High Potential Test (Dielectric test @ 50Hz – 1min)
Resistors Cubicles Preparation
The resistor will be prepared for the heat run test which means
Two resistor cubicles (one phase) will be mounted & stacked on each other
Internal connections will be modified by implementing 16 // paths instead of 2 (Original
Design) in order to Reach Voltage Level available in the Laboratory
The new resistance Value at 20°C will be of 2.59 Ohms for a complete phase.
Thermo-couples will be prepared and positioned at places we estimate to be the hottest
Additional thermo-couples can be used on customer demand
Heat Run Tests Process
Preliminary measurement of Resistance at ambient temperature
Verification of thermo-couples reading
The power will be applied to the resistor (50 Hz) and adjusted to get 130.1 kW dissipation:
The dissipation is calculated from RMS measurements of voltage and current at steady state
(power factor is negligible).
Calculated Values of Voltage & Current to reach 130,1kW shall be at hot Stage:
Voltage:
660 V
Current:
197 A
Temperature Rise will be directly measured though Thermo-couples
Hot Resistance Value will be calculated through R = U / I Formula where:
R is the Hot Stage Resistance Value
U is the stabilized RMS Voltage Value
I is the stabilized RMS Current Value
DOC. NR. :
TEST REPORT
HEAT RUN TEST
MICROELETTRICA SCIENTIFICA
M.S. RESISTANCES
MILANO
ITALY
________________
test report abb-rte1.doc
3
BC DA 04 05 004
_________________
Rev. 0
Pag. 5 di 10
Routine test Report
See data sheet enclosed- N° ORT 04 05 004-27
4
Heat Run Test
U is the stabilized RMS Voltage Value: 669.2 Volt
I is the stabilized RMS Current Value:
195.8 A
Measured temperature:
335°C
t = 306°C
R is the Hot Stage Resistance Value: = 669.2 /195.8 = 3.42 Ohms
R = 3.42 / 2.583= 32.3% ( Variation between cold and hot stage )
•
Measured Value at hot stage for complet Resistor: R = (3.42*16*8 ) / 2= 218.8 Ohms
Theoric Value : Rth = 214.03 Ohms ±5% (limit values are 224.7 Ohms to 203.3Ohms )
Test results
5
•
•
•
•
•
•
: Passed
Measurement after the “Heat Run Test “
Measured total value at ambient temperature
Ambient temperature
Rmax=2.720 ohms
Rmin=2.461 ohms
Test results
R1 : 2.603 Ohms
tamb: 33 °C
: within acceptance limits
DOC. NR. :
MICROELETTRICA SCIENTIFICA
M.S. RESISTANCES
MILANO
ITALY
________________
test report abb-rte1.doc
6
Graphic & Pictures
TEST REPORT
HEAT RUN TEST
BC DA 04 05 004
_________________
Rev. 0
Pag. 6 di 10
DOC. NR. :
MICROELETTRICA SCIENTIFICA
M.S. RESISTANCES
MILANO
ITALY
________________
test report abb-rte1.doc
TEST REPORT
HEAT RUN TEST
BC DA 04 05 004
_________________
Rev. 0
Pag. 7 di 10
DOC. NR. :
MICROELETTRICA SCIENTIFICA
M.S. RESISTANCES
MILANO
ITALY
________________
test report abb-rte1.doc
TEST REPORT
HEAT RUN TEST
BC DA 04 05 004
_________________
Rev. 0
Pag. 8 di 10
DOC. NR. :
MICROELETTRICA SCIENTIFICA
M.S. RESISTANCES
MILANO
ITALY
________________
test report abb-rte1.doc
TEST REPORT
HEAT RUN TEST
BC DA 04 05 004
_________________
Rev. 0
Pag. 9 di 10
DOC. NR. :
MICROELETTRICA SCIENTIFICA
M.S. RESISTANCES
MILANO
ITALY
________________
test report abb-rte1.doc
TEST REPORT
HEAT RUN TEST
BC DA 04 05 004
_________________
Rev. 0
Pag. 10 di 10