QUICK TESTER FOR TRANSFORMERS AND CAPACITORS
Contents
1.2. 15 2 Quick Tester Model 8505 1 INTRODUCTION 1 1 Receiving Your Shipment Upon receiving your shipment make sure that the contents are consistent with the packing list Notify your distributor of any missing items If the equipment appears to be damaged file a claim immediately with the carrier and notify your distributor at once giving a detailed description of any damage Save the damaged packing container to substantiate your claim 1 2 Ordering Information Quick Tester Model 8505 Cat 2136 51 Includes a soft carrying case probe two alligator clips and a user manual 1 2 1 Replacement Parts Sot Calrying CASO cuartas ir Cat 2139 72 PROD G iii Aa Cat 5000 70 One Black Alligator Cat 5000 71 Order Accessories and Replacement Parts Directly Online Check our Storefront at www aemc com for availability Quick Tester Model 8505 3 1 3 Introducing the Quick Tester Model 8505 The AEMC Quick Tester Model 8505 is a hand held instrument for performing quick basic integrity tests on transformers and capacitors used by electrical utilities This instrument is a fast and inexpensive inspection tool for detecting opens or shorts caused by shipping damage or workmanship issues and for verifying the proper operation of switching components The Model 8505 verifies transformers with functional coils without
3. OPEN SHORT LOW BATTERY 5 Connect the alligator clip to the probe tip and press the TEST button again The red SHORT light should blink while you hold down the button 6 Separate the probe from the clip Insert the tip of the probe into the terminal labeled SELF TEST T and then press the TEST button The green Transformer T PASS light should blink and the buzzer should emit a steady sound 7 Insert the probe into the terminal labeled SELF TEST C and press TEST The green Capacitor C PASS light should blink and the buzzer should sound If any of the preceding tests fail to produce the response described above return the instrument to AEMC for repair Quick Tester Model 8505 7 2 2 Testing Transformers and Capacitors WARNING Before performing a test on a capacitor or transformer ensure it is fully de energized Testing an energized transformer or capacitor is a potential shock hazard to the user and may damage the Model 8505 When using the Model 8505 to check the secondary side of transformers note that high voltage may be present on the primary side Be sure to avoid any contact with primary side connections that have not been fully de energized The Model 8505 is designed for testing the integrity of transformers and capacitors used in the power industry With the Model 8505 you can test e Transformers that have newly arrived at your facility During transport vibr
4. QUICK TESTER FOR S 5 0 5 TRANSFORMERS AND CAPACITORS EJAEMC e P User Manual a INSTRUMENTS Table of Contents 1 INTRODUCTION 99 5594 5 699555995599935599339983599885949599988559995 3 1 1 Receiving Your ShipMent icono 3 12 6 9 8 0 54222 ddr 3 1 2 1 Replacement Parts 3 1 3 Introducing the Quick Tester Model 8505 4 2 0 8 0 55 5559555953559933565335998983999859989839988899885998885999 6 2 1 Performing a S l estr r u aasma uyu bba 6 2 2 Testing Transformers and Capacitors 8 2 2 1 Performing a Test L L 9 2 2 2 Testing a Single Phase Transformer 9 2 2 3 Testing a Three Phase Transformer 11 3 5 0 1 0 5 9955594555945559 559993599959998559988598895998859 13 4 MAINTENANCIE 14 AT CIC AMIAG u uy 14 242 RO store 14 4 3 Technical and Sales Assistance 14 4 4 Limited Warranty iio ota 15 4 5 Warranty Repairs
5. requiring a full transformer ratio test A single user can check a shipment of incoming transformers units that have a defective coil or switch can be quickly pinpointed and turned around for repair The instrument provides simple single button operation the user only needs to make the proper connections and push a button Test results are clearly indicated by bright LEDs and when applicable a buzzer The instrument includes captive cables with safety clips test probe and a built in fuse for protection and operates on four AA batteries It also automatically detects whether or not the unit under test is a transformer or a capacitor AB The Model 8505 features internal multi frequency ACV source and loads to accommodate the testing of a wide range of transformers and capacitors Its microprocessor based design provides a high level of control stability and repeatability Other Model 8505 features include built in self test components fuse protection and an indicator providing ample warning for low battery Typical users include electrical utility maintenance and management personnel at electrical utility supply and transformer repair facilities For instance electrical utility staff can use 4 Quick Tester Model 8505 the Model 8505 to test an incoming shipment of transformers from the manufacturer to determine whether or not to accept the shipment or send it back due to damage The Model 8505 can similarly test phase compensation
6. O and XO are not connected together If HO and XO are connected to each other If HO and XO are not connected together The buzzer sounds when the Transformer T PASS light blinks Note that if the Delta configured transformer is primary with a neutral HO and if the secondary Y has a neutral X0 they may be shorted in some configurations 12 Quick Tester Model 8505 3 SPECIFICATIONS ELECTRICAL Short lt 200 Open gt 200 Transformer gt 1mH Capacitor 0 5uF lt 1mF Power Source 4 x 1 5V AA LR6 Alkaline batteries Battery Life More than 2500 ten second tests on a full charge Low Battery Red LED blinks approximately 100 tests can be Indicator conducted when LED starts to blink MECHANICAL Dimensions 7 2 X 3 65 x 1 26 182 9 x 92 7 x 32mm w o leads en 14 4 02 408 grams Case UL94 Vibration IEC 68 2 6 1 5mm 10 to 55 2 Shock IEC 68 2 6 1 5mm 10 to 55Hz Drop IEC 68 2 32 1m ENVIRONMENTAL 14 to 122 F 10 to 50 C 4 to 140 F 20 to 60 C Relative Humidity 0 to 85 95 F 35 C non condensing Altitude 2000m SAFETY Safety Rating 50V CAT IV Environmental IP30 Reference Conditions 23 C 3 C 30 to 50 RH battery voltage 6V 10 Specifications are subject to change without notice Quick Tester Model 8505 13 4 MAINTENANCE 4 1 Cleaning A Disconnect anything connected to the device e Use a soft cloth lightly moistened with soapy water Wipe with a moist cloth
7. ailable on our website at www aemc com warranty html Please print the online Warranty Coverage Information for your records What AEMC Instruments will do If a malfunction occurs within the one year period you may return the instrument to us for repair provided we have your warranty registration information on file or a proof of purchase AEMC Instruments will at its option repair or replace the faulty material REGISTER ONLINE AT www aemc com 4 5 Warranty Repairs What you must do to return an Instrument for Warranty Repair First request a Customer Service Authorization Number CSA by phone or by fax from our Service Department see address below then return the instrument along with the signed CSA Form Please write the CSA on the outside of the shipping container Return the instrument postage or shipment pre paid to Ship To Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 800 945 2362 or 603 749 6434 Ext 360 Fax 603 742 2346 or 603 749 6309 E mail repair aemc com Caution To protect yourself against in transit loss we recommend you insure your returned material NOTE You must obtain a CSA before returning any instrument Quick Tester Model 8505 15 E AEMC INSTRUMENTS 03 15 99 MAN 100408 v2 Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 603 749 6434 Fax 603 742 2346 www aemc com
8. and then completely dry with a dry cloth e Never use alcohol solvents or hydrocarbons 4 2 Repair Ship To Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 800 945 2362 or 603 749 6434 Ext 360 Fax 603 742 2346 or 603 749 6309 E mail repair aemc com NOTE You must obtain a CSA before returning any instrument Costs for repair standard calibration and calibration traceable to N 1 S T are available 4 3 Technical and Sales Assistance If you are experiencing any technical problems or require any assistance with the proper operation or application of your instrument please call mail fax or e mail our technical support team Chauvin Arnoux Inc d b a AEMC Instruments 200 Foxborough Boulevard Foxborough MA 02035 USA Phone 800 343 1391 or 508 698 2115 Fax 506 698 2118 E mail techsupport aemc com NOTE Do not ship Instruments to our Foxborough MA address 14 Quick Tester Model 8505 4 4 Limited Warranty The Quick Tester Model 8505 is warranted to the owner for a period of one year from the date of original purchase against defects in manufacture This limited warranty is given by AEMC Instruments not by the distributor from whom it was purchased This warranty is void if the unit has been tampered with or abused or if the defect is related to service not performed by AEMC Instruments Full warranty coverage and product registration is av
9. ation and shock can result in the transformer coils to short open or disconnect from the terminals Although it s possible for a transformer turn ratio meter to test for integrity this type of instrument requires more time and labor to set up connect to the transformer and perform the test The Model 8505 can perform a very quick and simple integrity test enabling you to test multiple transformers in a short amount of time e A transformer transported back to the repair facility You can use the Model 8505 to ensure that the basic continuity of all the coils is intact before performing more detailed tests e Capacitor terminals or plates that may be damaged The Model 8505 can quickly determine whether or not a capacitor is still functioning to determine whether more detailed tests and repairs are necessary Note that if a transformer coil is partially damaged for instance some internal turns have shorted but there is continuity as a coil or if a capacitor is partially damaged but is still functioning as a capacitor the Model 8505 will not detect an error A turn ratio meter or a winding resistance meter would be a more effective instrument for detecting this condition 8 Quick Tester Model 8505 2 2 1 Performing a Test Testing a transformer or capacitor is very simple and straightforward e To test a transformer connect the alligator clip to one end terminal of the transformer s coil and touch the probe to the other
10. capacitors for basic operation The Model 8505 comes with a probe two alligator clips and a carrying pouch see the illustration on the previous page The probe and the alligator clip are threaded and must be screwed on to the cable The Quick Tester Model 8505 is a companion product to AEMC s DTR Model 8510 transformer tester The Model 8505 differs from the Model 8510 in that the Model 8510 provides more detailed information about the unit under test but requires more time to set up and obtain results For example the Model 8505 can determine whether or not to accept or reject the incoming transformer the Model 8510 is then used when the transformer is subsequently set up and installed for operation Quick Tester Model 8505 5 2 OPERATION 2 1 Performing a Self Test Before using the Model 8505 perform a short series of self tests to ensure the instrument is functioning properly 1 Locate the Model 8505 SELF TEST LEAD labeled at the top of the instrument s front panel Transformer 1 Capacitor 2 Attach the probe to the SELF TEST LEAD by inserting the lead into the probe Screw the probe into the cable 3 Attach one of the alligator clips to the other unlabeled lead 6 Quick Tester Model 8505 4 With the probe and clip separated press the TEST button the center of the Model 8505 front panel The red OPEN light should blink while the button is depressed Release the button
11. each phase to neutral and from each phase to other phases A typical Delta configuration for a three phase transformer is shown below H2 x2 Primary Delta A Secondary Delta A For Delta configurations you must measure from each phase to other phases Note that in this configuration if one coil is open the Model 8505 can still perform tests because the other two coils may be intact and there is a complete pathway Quick Tester Model 8505 11 The following table lists the expected results reported by the Model 8505 testing across pairs of terminals in Y and Delta transformer configurations Measurement terminals X1 to X0 X2 to X0 X3 to X0 X1 to X2 X2 to X3 X3 to X1 H1 to H2 H2 to H3 H3 to H1 H1 to HO H2 to HO H3 to HO H1 to X1 H2 to X2 H3 to X3 HO to X0 Result if coil is good indicator light blinks Transformer T PASS Transformer T PASS Transformer T PASS Transformer T PASS Transformer T PASS Transformer T PASS Transformer T PASS Transformer T PASS Transformer T PASS Transformer T PASS Transformer T PASS Transformer T PASS Transformer T PASS OPEN Transformer T PASS OPEN Transformer T PASS OPEN SHORT OPEN SS SSS Ss I I I I Comments If HO and XO are connected to each other If HO and XO are not connected together If HO and XO are connected to each other If HO and XO are not connected together If HO and XO are connected to each other If H
12. en Transformer T PASS light blinks and the buzzer sounds Quick Tester Model 8505 9 2 Connect the alligator clip to one terminal of the secondary and touch the other terminal with the probe The secondary coil terminals are labeled X1 X2 and for transformers with center tapped terminals 23 If the secondary is not center tapped test across X1 and X2 If it is center tapped also test across X1 and X3 and X2 and X3 In each test if the coil is functioning the green Transformer T PASS light blinks and the buzzer sounds Note that this center tap is sometimes switched in and out 3 If one end of the primary and the center tapped terminal of the secondary are connected to the tank which is solidly earth grounded in normal operation check across H2 to tank and X3 to tank In both tests the red SHORT light should blink If any of the preceding tests encounter a problem the red OPEN light blinks to indicate the test failed 10 Quick Tester Model 8505 2 2 3 Testing a Three Phase Transformer Three phase transformers can have many different configurations The two most common configurations are Y wye with each phase connected to neutral and Delta A with each phase connected to the other two phases The following diagram shows the typical three phase transformer access points for primary Y left and secondary Y right configurations H2 X2 HO f I H1 H3 X1 X3 For Y configurations you must measure from
13. end terminal of the coil If there is continuity the green Transformer T PASS light will blink and the buzzer will sound If the coil is open the red OPEN light will blink and no buzzer sounds Note that you can test both single phase and three phase transformers as explained in detail later in this section e To test a capacitor connect the alligator clip to one terminal and touch the probe to the other terminal If the capacitor is functional the green Capacitor C PASS light blinks and the buzzer sounds If the capacitor is shorted the red SHORT light blinks and no buzzer sounds 2 2 2 Testing a Single Phase Transformer In single phase power transformers the primary coil s are accessible over the insulators bushings the secondary coil s are more easily accessible over the tank When a coil is checked the green Transformer T PASS blinks and the buzzer sounds if the coil is functioning Note that you should disconnect the fuse on the primary side while checking the integrity of the secondary coils To test a single phase transformer connect the Model 8505 probe to the SELF TEST LEAD and the alligator clip to the other unlabeled lead Then proceed as follows 1 Attach the alligator clip to one end terminal of the primary and touch the other end terminal with the probe In the diagram below the terminals of the primary coil are labeled H1 and H2 H1 241 eu X3 H2 2 If the coil is functioning the gre
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