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TRANSMISSION TESTING SERVICES INDOOR OR AUXILIARY SWITCHBOARD TEST RESULTS Test report no. Date of test Substation/location Switchgear position/bay Identification number Reason for test Summary of tests Relevant Standard Results 1. Resistance a) Main circuit - panel to panel b) Earth connections - panel to panel c) Earth switches SDI 535 Table 5.4.3 2. Insulation resistance – main circuit SDI 535 Table 5.4.3 3. Power frequency withstand a) Closed - Phase to phase and phase to earth b) Open – across isolating distance of CB’s SDI 535 Table 5.4.3 4. Voltage indicators operating correctly SDI 535 Table 5.4.3 5. Partial discharge (including VT’s when fitted) SDI 535 Table 5.4.3 & 5.4.6.3 6. Voltage transformers a) Ratio b) Polarity (performed by protection staff) SDI 535 Table 5.4.6.3 Note: Contact resistance test performed by substations staff and reported separately. No Comments/notes Tested by FAE 3307 November 2011 Service no. Reported by HVT 0001 Section 17 Service no. Page 1 of 8 NAMEPLATE DETAILS Manufacturer Type Standard/specification/tender Rated voltage Insulation level Year of manufacture Serial no/s Switchboard schematic TRF 1 WH1806 WH1865 AS WH1543 This sample obtained from system alteration 11KV SECT 1 2000A notification BBP A S WH1239 A WH1276 S North Parade Cap 1 A S WH1213 Sunblest Crescent A A S WH1250 Aux No1 S WH1287 Byron Crescent WH1628 11kV section A S T WH1224 Spare Photograph of switchgear (if available) Paste photo if available FAE 3307 November 2011 HVT 0001 Section 17 Page 2 of 8 DETAIL OF TEST RESULTS Atmospheric conditions deg. C Atmospheric temperature % Atmospheric humidity 1. Resistance Limit – Comparable across phases or panels. Test current 1 to 10 Amps a) Main circuit – panel to panel Resistance (Micro Ohms) Connection A Phase B Phase Result C Phase Sample CB 1234 to CB 1235 Instrument asset no. b) Earth connections – panel to panel Connection Resistance (Micro Ohms) Result CB 1234 to CB 1235 Instrument asset no. FAE 3307 November 2011 HVT 0001 Section 17 Page 3 of 8 c) Earth switches Resistance (Micro Ohms) Connection A Phase B Phase Result C Phase Instrument asset no. FAE 3307 November 2011 HVT 0001 Section 17 Page 4 of 8 2. Insulation resistance – main circuit Limit - Minimum 50 G Ohms Bus section 1 Equipment included in this test Configuration Sample C/Bs 1234, 3456, 4556 and bus section 1. (VT 12345 racked out) Test connections Test voltage Insulation resistance Result A–B+C+E All C/Bs installed and closed B–A+C+E C–A+B+E All C/Bs installed and open. Test source connected to busbar side 5kV DC A+B+C – a+b+c+E Instrument asset no. Bus section 2 Equipment included in this test Configuration Sample C/Bs 1234, 3456, 4556 and bus section 1. (VT 12345 racked out) Test connections Test voltage Insulation resistance Result A–B+C+E All C/Bs installed and closed B–A+C+E C–A+B+E All C/Bs installed and open. Test source connected to busbar side 5kV DC A+B+C – a+b+c+E Instrument asset no. FAE 3307 November 2011 HVT 0001 Section 17 Page 5 of 8 3. Power frequency withstand Limit – No disruptive discharge at 80% of factory test voltage (AS 62271.200 clause 7.105) Bus section 1 Equipment included in this test Configuration Sample C/Bs 1234, 3456, 4556 and bus section 1. (VT 12345 racked out) Test connections Test voltage Result A–B+C+E All C/Bs installed and closed B–A+C+E C–A+B+E All C/Bs installed and open. Test source connected to busbar side A+B+C – a+b+c+E Instrument asset no. Bus section 2 Equipment included in this test Configuration Sample C/Bs 1234, 3456, 4556 and bus section 1. (VT 12345 racked out) Test connections Test voltage Result A–B+C+E All C/Bs installed and closed B–A+C+E C–A+B+E All C/Bs installed and open. Test source connected to busbar side A+B+C – a+b+c+E Instrument asset no. 4. Voltage indicators All voltage indicators checked to be operating correctly and allocated to correct phases Result Can be performed during closed position PFW test FAE 3307 November 2011 HVT 0001 Section 17 Page 6 of 8 5. Partial discharge (Including voltage transformers when fitted) Limit - Switchboard - Maximum 50pC at measure level - Voltage Tx’s - Oil filled max 5pC, epoxy max 10pC (or less than switchboard) at measure level # Notes: 1. Ur = 12,24,36,72.5 or 145kV as appropriate. 2. For units with single phase insulation - single phase test arrangement use Ur/√3 measured phase to earth. 3. For units with three phase insulation - three phase test arrangement use Ur/√3 measured phase to earth. (AS 62271.200 Three phase procedure) - single phase test arrangement use Ur measured phase to earth. (AS 62271.200 Single phase procedure A) All recorded voltages phase to earth (Peak/√2) Sample C/B 1234, 3456, 4556 all closed, bus section 1 and VT 12345 racked in Equipment included in this test Partial discharge level (pC) Discharge inception Phase Background noise level (pC) kV pC ….. phase method used Pre-stress level = 1.3 …. See note # ….. kV (10 seconds) Measure level = 1.1 …. See note # ….. kV (1 minute) Discharge extinction Result kV A B C Notes PD detector frequency settings Centre frequency kHz Bandwidth kHz Calibrated at pC Instrument no. Histogram of PD pattern (as required) Phase Test voltage Notes FAE 3307 November 2011 HVT 0001 Section 17 Page 7 of 8 6. In–built voltage transformers Limits Ratio - within 5% of nameplate (by voltage measurement) Polarity – performed by protection staff as required VT number Measured secondary voltage with …….. applied to primary winding A Phase B Phase C Phase Result Polarity confirmed correct Performed by protection staff as required Instrument asset no. FAE 3307 November 2011 HVT 0001 Section 17 Page 8 of 8