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Summary of Contents for Arteche UG-72 525 Series
- Page 1 USER MANUAL HIGH VOLTAGE INSTRUMENT TRANSFORMERS CONTENTS PRELIMINARY CONSIDERATIONS INTRODUCTION TRANSPORT AND HANDLING INSTALLATION INSPECTION AND MONITORING QUICK TROUBLESHOOTING GUIDE ANNEX I ANNEX II ANNEX III...
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Page 2: Preliminary Considerations
PRELIMINARY CONSIDERATIONS OBSERVATIONS/ Keep the instruction manual in a safe and accessible place ARTECHE is not liable for accidents due to causes unrelated to to ensure that any operation or maintenance task can be our guidelines. performed quickly and easily when necessary. -
Page 3: Scope Of Application
User Manual INTRODUCTION FOREWORD/ This manual describes the construction, installation, commissioning and monitoring for safe use of a high-voltage instrument transformer insulated by SF for Auxiliary Services. SCOPE OF APPLICATION/ The manual applies to the following transformers: › Gas Insulated Voltage Transformers, UG Series, Models UG-72..550. DESIGN/ At the base of the transformer is the densimeter with temperature Gas insulated voltage transformers are manufactured with a... -
Page 4: Transport And Handling
Attach photos of the damaged transformers to the report. etc. Any anomaly must be indicated on the transport › Possible damage to the packaging: Dents on the outside, open company’s receipt sheet and communicated to ARTECHE or packaging, etc. the equipment supplier. ›... -
Page 5: Installation
The handling of the gas, of the containers under pressure in which it is supplied and of the pressure regulation instruments For more details, please refer to the ARTECHE gas filling manual. must be carried out by trained and certified personnel, and using appropriate means, to reduce the risk of emission and of possible damage due to incorrect handling of the containers. -
Page 6: Electrical Connections
User Manual ELECTRICAL CONNECTIONS/ Primary connections A faulty contact or a bad connection can lead to rapid transformer deterioration Do not use the secondary terminal block as a step To make or check the primary connections, a lifting platform or a ladder should be used, CAUTION maintaining the necessary safety conditions for work at height. - Page 7 For the test procedure, see Annex III. unit. 3. Gas tests: We at Arteche, as manufacturers, do not establish any specific measures, since the decision depends on: e. Tests performed on gas samples. The gas tests analyze the state of the insulating liquid and show the properties ›...
- Page 8 User Manual Type Code Test Observations Packaging Look for signs of rough handling. Insulator Check that is not damaged and is clean. Check that it is not loose, bent or broken. Primary Check that they are not loose, bent or broken. Terminals Check that it is not damaged and that it is securely fastened to the tank or transformer holder.
- Page 9 QUICK TROUBLESHOOTING GUIDE Phenomenon Control item Cause Countermeasure Abnormal Internal issue voltage Contact ARTECHE indication Partial discharges › Visual control Short circuit Ferro-resonance › Load control alarm in the ›...
- Page 10 User Manual - Annex I High Voltage Instrument Transformers | UG ANNEX I HANDLING AND CONNECTION › UG-72..525...
- Page 11 User Manual - Annex I › › Fig. 1: Lifting Fig. 2: Lifting › › Fig. 3: Movement Fig. 4: Movement High Voltage Instrument Transformers | UG...
- Page 12 User Manual - Annex I › Fig. 5: Placement of the equipotential ring › Fig. 6: Placement of the equipotential ring › Fig. 7: Densimeter › Fig. 8: Neutral grounding High Voltage Instrument Transformers | UG...
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Page 13: Tightening Torques
User Manual - Annex II High Voltage Instrument Transformers | UG ANNEX II TIGHTENING TORQUES HIGH VOLTAGE STEEL 8.8 (ZN-0) STAINLESS STEEL A2-70 METRICS Insulator GENERAL Insulator GENERAL Bushing Metal-Metal Blushing Metal-Metal Valves (except threads Vales Rupture Disc on copper) Rupture Disc 4.41 4.41... - Page 14 However, it is normal for pre-operative tests to be performed in order to confirm certain important equipment values. The following is a guide to the most common on-site tests and the proper way to perform them on ARTECHE brand transformers.
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Page 15: Insulation Resistance Measurement
User Manual - Annex III INSULATION RESISTANCE MEASUREMENT The measurement of the insulation resistance is done to check In the case of new equipment, the value obtained does not the integrity of the transformer insulation and to ensure that it provide any information, unless a short circuit is detected. - Page 16 User Manual - Annex III TRANSFORMER RATIO TEST The Portable Transformer Ratio Meter (TTR) is commonly used The TTR contains 4 terminals (this configuration may vary to measure the ratio, excitation current and polarity of windings. depending on the manufacturer): ›...
- Page 17 User Manual MU_HV_UG_EN V: A0 12/01/2021 ©ARTECHE For more detailed information, please visit us at arteche.com Subject to change without notice...
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