Biddle TTR320_UG 电路图.pdf

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1、AVTMTTR320-EN Rev A October 2008 Instruction Manual for Three-Phase TTR Transformer Turn Ratio Test Set TTR320 series Catalog Numbers. TTR320, TTR320-47 HIGH-VOLTAGE EQUIPMENT Read this entire manual before operating. M Valley Forge Corporate Center 2621 Van Buren Avenue Norristown, PA 19403-2329 U.

2、S.A. 610-676-8500 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 Three-Phase TTR Transformer Turn Ratio Test Set TTR320 series RadioFans.CN 收音机爱 好者资料库 Copyright 2008 by Megger. All rights reserved. The information presented in this manual is believed to be adequate for the intended use of the produ

3、ct. If the product or its individual instruments are used for purposes other than those specified herein, confirmation of their validity and suitability must be obtained from Megger. Refer to the warranty information below. Specifications are subject to change without notice. WARRANTY Products suppl

4、ied by Megger are warranted against defects in material and workmanship for a period of one year following shipment. Our liability is specifically limited to replacing or repairing, at our option, defective equipment. Equipment returned to the factory for repair must be shipped prepaid and insured.

5、Contact your MEGGER representative for instructions and a return authorization (RA) number. Please indicate all pertinent information, including problem symptoms. Also specify the serial number and the catalog number of the unit. This warranty does not include batteries, lamps or other expendable it

6、ems, where the original manufacturers warranty shall apply. We make no other warranty. The warranty is void in the event of abuse (failure to follow recommended operating procedures) or failure by the customer to perform specific maintenance as indicated in this manual. M Valley Forge Corporate Cent

7、er 2621 Van Buren Ave Norristown, PA 19403-2329 610-676-8500 (Telephone) 610-676-8610 (Fax) AVTMTTR320-EN Rev A Oct 2008 i Table of Contents 1. Getting to know the TTR320.1 Product Overview.1 User Interface Panel.4 Communications ports.5 HOME Action Icons.5 Utility Icons.6 2. Safety.7 Safety is the

8、responsibility of the user.7 Input Power precautions.8 3. PREPARING FOR TEST.9 Site Preparation.9 Making Circuit Connections.9 4. Connecting to the Transformer. 11 Single-Phase, Two-Winding Transformers. 11 Three-Phase, Two-Winding Transformers. 14 Three-Phase, Three-Winding Transformers. 15 Current

9、 Transformers (CTs). 16 BCTs Mounted on Three-Phase Transformers. 19 T-Type Transformers . 22 5. Operation. 23 Power up. 23 Navigating the screen. 23 HOME Screen Action Icons. 23 Remote Control Operation for LTC Testing. 28 Error Messages. 28 Upon completion of TEST Powering down. 29 6. Service. 31

10、Maintenance. 31 Fuse Replacement . 31 Calibration. 32 TTR320 Self check . 32 Troubleshooting. 34 Repairs. 35 7. Replacement Parts List and Optional Accessories. 37 8. Specifications. 39 Electrical. 39 Environmental Conditions. 41 Physical Data. 41 Addendum A TTR 300 Series PowerDB Lite User Manual.

11、43 AVTMTTR320-EN Rev A Oct 2008 ii List of Figures TTR320 Transformer Turn Ratio test set.iii Figure 1-1. Top Panel Controls.3 Figure 1-2. User Interface Panel.4 Figure 1-3. Communications ports.5 Figure 1-4. HOME Action Icons.5 Figure 1-5. Utility Icons.6 Figure 4-1. Setup for Testing Single-Phase

12、Transformer.12 Figure 4-2. Setup for Testing Single-Phase Autotransformer.12 Figure 4-3. Setup for Testing Single-Phase, Type A (Straight Design) Step Voltage Regulator.13 Figure 4-4. Setup for Testing Single-Phase, Type B (Inverted Design) Step Voltage Regulator.14 Figure 4-5. Setup for Testing Unm

13、ounted Current Transformer .17 Figure 4-6. Setup for Testing Taps on Multiple Tap CT.18 Figure 4-7. Setup for Testing BCT Mounted on Single-Phase Two-Winding Transformer.19 Figure 4-8. Setup for Testing BCT Mounted on Delta Winding -Three-Phase Power Transformer.20 Figure 4-9. Setup for Testing BCT

14、Mounted on Wye Winding of a Three-Phase Transformer.21 Figure 5-1 Cleared Test screen.24 Figure 5-2 File Manager -Recall Test.25 Figure 5-3. File Manager SAVE Test screen.26 Figure 5-4 Tap Structure - Define.26 Figure 5-5 Global Settings Preferences screen.27 List of Tables Table 4-1. Test Lead Mark

15、ings for Single-Phase Transformers.13 Table 4-2. Test Lead Markings for Three-Phase Transformers.15 Table 4-3. T-type Transformer Winding Phase Relationship.22 Table 6-1. Troubleshooting Guide.34 Table 7-1. Replacement Parts List.37 AVTMTTR320-EN Rev A Oct 2008 iii Upon Receipt of Product Prior to o

16、peration, check for loosened hardware or damage incurred during transit. If these conditions are found, a safety hazard is likely, DO NOT attempt to operate equipment. Please contact Megger as soon as possible. TTR320 Transformer Turn Ratio test set AVTMTTR320-EN Rev A Oct 2008 iv M M AVTMTTR320-EN

17、Rev A Oct 2008 1 1 Getting to know the TTR320 Product Overview The Three-Phase TTR Test Set is fully automatic, self-checking, menu-driven unit. The test set measures the turn ratio, phase shift, and excitation current of power, distribution, and instrument transformers. A “-47” suffix added to the

18、catalog number denotes a 230-V input power supply, rather than the standard 120-V supply. The test set is a portable instrument housed in a sturdy plastic case with removable lid and carrying strap. The inside lining of case is metal shielded. A canvas carrying bag is supplied to hold all accessorie

19、s. The test set can be used to test single-phase and three-phase transformers, both with and without taps in accordance with the requirements of the IEEE C57.12.90 1997 standards. For three-phase measurements, the test set is connected to all three phases of the transformer to be tested. The TTR lea

20、d selection circuitry permits automatic measurement of all phases without changing connections. This feature eliminates the need to refer to hook-up charts when testing three-phase transformers. Turn ratio, phase shift and excitation current readings are displayed on a large LCD. Transformer excitat

21、ion current as well as phase shift angle helps to detect transformer shorted turns or an unequal number of turns connected in parallel. Operating condition (error) messages identify incorrect test connections, abnormal operating condition, or winding problems. Test results can be saved either to int

22、ernal memory, to an external USB storage device, or can be uploaded to a personal computer (PC) via an ethernet port. Features include: ? Fully automatic operation. ? Self-checking at power-up. ? User-friendly, menu-driven operation. ? Test turn ratio, phase shift (in both degree and centiradian), a

23、nd excitation current. ? Easy measuring of regular windings, tertiary windings, and CTs. ? Storage capacity to handle over 1000 test files (depending on size). M AVTMTTR320-EN Rev A Oct 2008 2 ? Checking reverse polarity at start of each test. ? Via ethernet port, an external PC or laptop can be con

24、nected to operate the TTR (in remote control mode) or to transfer test results and to provide full transformer test report. ? Quick test mode provides the fastest testing of a transformer. ? Three excitation test voltages: 80 V, 40 V, and 8 V. ? Testing to ANSI, IEC, and Australian standards. ? Lead

25、s marked to ANSI, IEC, and Australian standards. ? Multi-lingual support. ? Large, easy-to-read, full VGA color display ? Meets the requirements of both the European EMC and Low Voltage Directives. It is recommended that the user becomes familiar with the TTR320 before ever connecting to a transformer. Getting to Know the TTR320 AVTMTTR320-EN Rev A Oct 2008 3 Top Panel Controls Figure 1-1. Top Panel Controls 1. Power input receptacle, ON/OFF switch, and f