ANSI DESIGN TEST REPORT Report No. EU1295-H-00 Type …

1 ANSI DESIGN TEST REPORTR eport No. EU1295-H-00 Type PVN station ClassSurge ArresterThis REPORT records the results of the DESIGN tests made on Type PVN station class surgearresters in accordance with IEEE Standard IEEE Standard for MetalOxide surge Arresters for AC Power Circuits (> 1kV) .To the best of our knowledge and within the usual limits of testing practices, testsperformed on the Type PVN arresters demonstrate full compliance with the relevantclauses of the referenced Comber Dennis W. Lenk , Engineering Principal EngineerDate: July, 2001 Separate reports provide details of the tests, according to the following table: REPORT DateEU1295-H-01 Insulation Accelerated Accelerated Ionization and Current, Short Line DESIGN Cantilever Equivalency TEST REPORT No.

2 EU1295-H-01 Insulation Withstand Tests on PVN arrester HousingCERTIFICATIONThis is to certify that insulation withstand DESIGN tests have been successfully performedon Ohio Brass Type PVN station class surge arresters. Michael G. ComberDennis W. Lenk EngineeringPrincipal EngineerOhio Brass & Chardon ProductsJuly, 2001 Attachments2 DESIGN TEST REPORTType PVN station class surge ArresterTITLE: arrester Insulation Withstand Tests:INTRODUCTION: The following table lists the Type PVN arresters minimum strikedistance, required and actual impulse withstand levels, and 60 HZ required andactual dry and wet withstand levels as defined in Section of IEEE.

3 All housings meet or exceed these levels of HZ60 HZ60 HZ60 HZStrikeImp w/sImp w/sDry w/sDry w/sWet w/sWet w/sArresterDistanceReq dActualReq dActualReq dActualMCOV(in)(KVc)(KVc)(kVrms)(kVrms)( kVrms)(kVrms) TEST REPORT No. EU1295-H-02 Discharge Voltage CharacteristicCERTIFICATIONThis is to certify that the discharge voltage characteristic DESIGN tests have beensuccessfully performed on Ohio Brass Type PVN station class surge G. ComberDennis W. Lenk EngineeringPrincipal EngineerOhio Brass & Chardon ProductsJuly, 2001 Attachments2 DESIGN TEST REPORTType PVN station class surge ArresterTITLE: Discharge-voltage characteristicTEST OBJECTIVE: These measurements are used to obtain the maximum dischargevoltages at various current magnitudes and PROCEDURE: Discharge voltage tests were performed on three prorated testsamples consisting of two MOV disks, an aluminum end terminal, solid steel spacer, andcontact spring plate.

4 The material selection and configuration facilitated an accurateproratio of inductive and resistive effects of all components in the impulse path of a were conducted in accordance with clause of ANSI/IEEE Standard IEEE Standard for Metal-Oxide surge Arresters for AC Power Circuits (>1kV) .Prorated test sections were subjected to 8/20 current waves with magnitudes ranging kA through 20 kA. In addition, Front-of-wave and switching surge discharge voltagetests were SAMPLES: Arresters are assembled from discs accumulated within 10 kA IRranges as specified for each arrester rating.

5 To verify catalog maximum IR levels werenot exceeded, a discharge voltage ratio was established at each current level based on thetest sections 10 kA IR (Table 2). That ratio was multiplied by the maximum 10 kA IRaccumulation specified for each rating. As summarized on Table 3, the IR calculatedbased on the prorated test sections were under the maximum declared catalog RESULTS: The following oscillograms show the results of the individualdischarge voltage tests. At the end of this section, a summary table compares the catalogprotective characteristics versus the measured values extrapolated from the test data.

6 Thetest specimen with a 10 Ka 8/20 IR of Kv represents the maximum dischargevoltage for a Kv rms Type PVN 8/20 Discharge Voltage Oscillograms: Tests were performed per Section fornominal 8/20 discharge current Ka, Kv, Ka, Kv, Ka, Kv, Ka, Kv, Ka, Kv, Ka, Kv, FOW Oscillograms: Tests were performed per Section for nominal 10 Kacurrent surges with times to voltage crest approaching .5 Ka max @ Kv max @ Ka max @ Kv max @ Ka max @ .85 Kv max @ .5 waveshapeC. Switching surge Oscillograms: Tests were performed per Section for switchingsurge current magnitudes of 500 and 1000 Amps, Kv, Amps, Kv, CHARACTERISTICS COMPARISON TABLEA rresterMCOV10 kAFOW IRCatalogMax.

7 (kV)10 kAFOW IRProratedMeasured(kV)(1) AmpSS IRCatalogMax.(kV)(1) AmpSS IRProratedMeasured(kV)10 kA8/20 IRCatalogMax.(kV)10 kA8/20 IRProratedMeasured(kV)40 kA8/20 IRCatalogMax.(kV)40 kA8/20 IRProratedMeasured(kV) (*) Measured prorated discharge voltage at specified waveshapes equals ( ) times disc measured IR at the specified waveshape.(1) 500 amp IR for kV MCOV; 1kA IR for 98-180 kV TEST REPORT No. EU1295-H-03 Disc Accelerated AgingCERTIFICATIONThis is to certify that the disc accelerated aging DESIGN tests have been successfullyperformed on Ohio Brass Type PVN station class surge G.

8 ComberDennis W. Lenk EngineeringPrincipal EngineerOhio Brass & Chardon ProductsJuly, 2001 Attachments2 DESIGN TEST REPORTPVN station class surge ArresterTITLE: Accelerated aging procedureINTRIODUCTION: This test is performed to measure the mov disc aging measured watts values are used to develop elevated voltage ratios kc and kr whichare used in the duty cycle and discharge current withstand tests to simulate theperformance of arresters that have a service life equivalent to 1000 hours at PREPARATION: Three 60 mm diameter x 23 mm long discs and three 60mm diameter x 41 mm long discs were selected for testing.

9 The three 23 mm long discsare designated as samples #1, 2, & 3 while the 41 mm long discs are designated assamples #4, 5, & RESULTS: The test was performed per Section of ANSI/IEEE The three test samples were placed inside a 115 plus/minus 2oC. oven andenergized at MCOV for 1000 hours. The watts loss of each sample was measured atMCOV and duty cycle rated voltage three hours after energization and at the completionof the 1000 test duration. The following table summarizes the results of the 1000 houraccelerated aging tests. All watts values were measured with the samples at 115oC. INITIAL FINALINITIAL FINALSAMPLE WATTS WATTS WATTS WATTS NO.

10 @MCOV @MCOV@RATING @RATING 1 2 3 4 5 6 : For each test sample, the final watts loss at MCOV and rating is lessthan the initial watts measured. Therefore, the kc and kr factors equals in the designtests requiring demonstration of thermal TEST REPORT No. EU1295-H-04 Polymer Accelerated AgingCERTIFICATIONThis is to certify that the polymer accelerated aging DESIGN tests have been successfullyperformed on Ohio Brass Type PVN station class surge G. ComberDennis W.