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Summary of Contents for DRIESCHER ECOS-C
- Page 1 ECOS-C User manual DRIESCHER Medium voltage- Compact switchgear ECOS-C • Indoor • SF6-free • Rated voltage 24 kV STROM • SICHER • SCHALTEN...
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Page 2: Table Of Contents
MV - Compact switchgear ECOS-C B ECOS-C Contents 1 INTRODUCTION Copyright .......... - Page 3 MV - Compact switchgear ECOS-C B ECOS-C Contents 4 TRANSPORT AND STORAGE Handling instructions ........
- Page 4 The activities described in this user manual may be performed only by qualified electricians authorised by the operating company. Scope of this manual This user manual forms the basis for operating and using the ECOS-C medium-voltage switchgear. Translation of the original German User Manual 4 / 52...
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Page 5: Introduction
1.1 Copyright The copyright, and all other protective rights to the contents of this manual, remain in their entirety with DRIESCHER GmbH (Elektrotechnische Werke Fritz Driescher & Söhne GmbH / Driescher GmbH Eisleben). Printing and reproduction are permitted solely for personal use for your own information in performance of the work. -
Page 6: Guarantee And Indemnification
Without approval by DRIESCHER this document may not be changed during the warranty period. Any liability of DRIESCHER for damages, be they of a direct, immediate or remote nature, as direct or indi- rect consequence of changes to this document after expiry of the warranty period and/or of unautho- rised changes to this document during the warranty period, is expressly excluded. -
Page 7: Type Testing
B ECOS-C Type testing The ECOS-C medium-voltage switchgear unit has been type tested according to EN 62271-200 [IEC 62271-200]. The results of the tests are recorded in the test reports. The type tests tested the operational capability and safety of the equipment in normal operation and under fault conditions. -
Page 8: Safety
Safety HIGH VOLTAGE, DANGER OF DEATH The ECOS-C medium-voltage switchgear unit is designed for rated voltages up to 24 kV and is subject to the applicable national and international regulations for high-voltage operations. The switchgear can be operated only when it is in the enclosed condition. Safety devices may not be switched off or disabled. -
Page 9: 2.2.1 The 5 Safety Rules
MV - Compact switchgear ECOS-C Operational safety instructions B ECOS-C Operational safety instructions 2.2.1 The 5 Safety rules The following 5 safety rules must be complied with whenever work is being performed on the equipment: 1. Disconnect the equipment and isolate it in all respects Before starting work, disconnect the electrical equipment by isolating the current-carrying parts at all phases. -
Page 10: 2.2.2 Duties Of The Operating Company
MV - Compact switchgear ECOS-C Duties of the operating company B ECOS-C 2.2.2 Duties of the operating company DANGER: High voltage, danger of death Defects or damage that affect the operational safety of the equipment must be reported to the manufacturer immediately and rectified without delay. -
Page 11: Technical Description
MV - Compact switchgear ECOS-C Technical description B ECOS-C Technical description Technical data switchgear Switchgear ECOS-C 20 kA EN 62271-200 24 kV Rated voltage Rated short-time power frequency withstand voltage U 50 kV Rated lightning impulse withstand voltage 125 kV... -
Page 12: Technical Data Of The Circuit Breaker
MV - Compact switchgear ECOS-C Technical data B ECOS-C Technical data of the circuit breaker Circuit breaker EN 62271-100 ECOS-C 20 kA 24 kV Rated voltage Rated short-circuit duration Rated short-time current 20 kA Rated surge current 50 kA Rated short-circuit breaking current... -
Page 13: Function And Design
B ECOS-C Function and design 3.3.1 Performance profile The ECOS-C medium-voltage switchgear unit has been tested according to EN 62271-200 for its abi- lity to withstand fault arcs. All electrical conductive parts are single-phase insulated, field controlled, fully protected against being touched and metal-clad. -
Page 14: 3.3.3 Vacuum Interrupter Technology
MV - Compact switchgear ECOS-C Vacumm interrupter technology B ECOS-C 3.3.3 Vacuum interrupter technology Vacuum interrupter The vacuum interrupter has been proven over decades in service. The excellent and sustainable swit- ching behaviour and the outstanding dielectric characteristics are the advantages of this switching technology. -
Page 15: 3.3.4 Design Of The Switch Unit
MV - Compact switchgear ECOS-C Design of the switch unit B ECOS-C 3.3.4 Design of the switch unit • The single-phase insulated switch unit and busbar system is installed in a corrosion-resistant stainless steel enclosure, which is filled with an environmentally-friendly synthetic ester- based dielectric insulating fluid. -
Page 16: 3.3.5 Design Of The Switch System
MV - Compact switchgear ECOS-C Design of the switch system B ECOS-C 3.3.5 Design of the switch system 1. Cast resin duct with external taper for the cable connection using a plug connector system to DIN47636, current rating: 630 A, M16 screw thread 2. -
Page 17: 3.3.6 Design Of The Switchgear
MV - Compact switchgear ECOS-C Design of the switchgear B ECOS-C 3.3.6 Design of the switchgear High voltage part 1. Three single-phase insulated switch systems are arranged one above the other. 2. Connection of the MS cable is performed at the front using angled cable plug connectors for external tapers to DIN 47636 3. -
Page 18: 3.3.7 Behaviour In The Event Of Internal Faults
B ECOS-C 3.3.7 Behaviour in the event of internal faults The ECOS-C medium-voltage switchgear unit has been type tested according to EN 62271-200 for its behaviour in the event of internal faults. When a fault occurs, pressure relief is downwards. (see the diagram below). - Page 19 • Refer to the manufacturer’s data for the design of a suitable expanded metal plate. • Please contact DRIESCHER to perform the calculation of the pressure in transformer substations with site-mixed concrete. The calculation must take into account amongst other things the other equipment that is installed, such as low-voltage switchgear combinations.
- Page 20 230 V DC 0,65 A One motorised drive per switch panel. Each switch panel of the ECOS-C medium-voltage switchgear unit can be fitted with a motorised drive, to enable remote operation. The motorised drive automatically charges the spring drive as required.
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Page 21: 3.3.9 Option - Digital Protective Relay
Three types of digital protective relay (some in conjunction with manual drives) can be integrated directly into the ECOS-C medium-voltage switchgear unit. Use of these variants can obviate the need for an additional, secondary cabinet. In each case the feasibility must be checked in advance with the manufacturer. -
Page 22: 3.3.12 Option - Measurement Panel
B ECOS-C 3.3.12 Option - Measurement panel A separate measurement panel suitable for the ECOS-C unit is available in a similar tested enclosure (air-insulated). The purpose of the measurement panel is to accommodate current transformers and voltage transformers that are used for measurement and protection. - Page 23 NOTICE Appropriate openings must be provided because pressure is relieved downwards from the ECOS-C when a fault occurs. Different floor openings must be created for the switch- gear unit depending on the number of panels. 2 panels 3 panels 4 panels 5 panels 6 panels 7 panels...
- Page 24 MV - Compact switchgear ECOS-C Floor recesses B ECOS-C A= Floor recess B= Floor attachment C= Wall of the building * See note on the previous page. 2 panel 3 panel 4 panel DANGER Personal injury and damage to property The floor recess (A) must not be sealed.
- Page 25 MV - Compact switchgear ECOS-C Floor recesses B ECOS-C 5 panel 6 panel 7 panel DANGER Personal injury and damage to property The floor recess (A) must not be sealed. The pressure relief of the switchgear is performed via this opening in the floor.
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Page 26: Schematic Diagram
MV - Compact switchgear ECOS-C Schematic diagram B ECOS-C Schematic diagram Circuit breaker T4 Busbar connection T0 Legend Circuit breaker / busbar connection -QA1 Circuit breaker -QZ1 Pre-selector switch -PF1 Capacitive voltage display for the input or output cables -BC1... - Page 27 MV - Compact switchgear ECOS-C Schematic diagram B ECOS-C Measurement panel Legend Measurement panel -PF1 Capacitive voltage display for the input or output cables -BC11 Current transformer -BA11 Voltage transformer 27 / 52...
- Page 28 MV - Compact switchgear ECOS-C Schematic diagram B ECOS-C 16566 Circuit breaker without secondary cabinet ● ● ● ● ● ● ● ● ● ● ● ● ●...
- Page 29 MV - Compact switchgear ECOS-C Schematic diagram B ECOS-C 16567 Circuit breaker with secondary cabinet ● ● ● ● ● ● ● ● ● ● ● ● ●...
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Page 30: Handling Instructions
Transportation and storage Handling instructions The following pictograms with their associated meanings apply to transportation and storage: Handle with care High centre of gravity Protect against heat Protect against wet Do not step on the equipment Do not stack Max. permissible tilt Refer to lifting instructions Permissible temperature 30 / 52... -
Page 31: Transport
Transport DANGER Use the lifting points provided - Note the weight, dimensions, and centre of gravity. - Do not tilt the equipment more than 30°. DANGER Protection of personnel - Ensure that no personnel remain in the hazard area. - The equipment may be suspended using transport slings only where the transport slings have a length (L ) equal at least equal to the width of the equipment (Lb) times a factor of 1.1: ≥... -
Page 32: Storage
Storage If the switchgear or parts of it or accessories to it are placed in storage, a suitable storage location must be selected or created. Equipment should be stored dry and protected against the effects of weather, solar radiation and dust. Permissible storage temperature: -25°... -
Page 33: Erection And Installation
- Inform the manufacturer. Erection The ECOS-C medium-voltage switchgear unit is delivered ready for connection. Sufficient access space must be allowed around the location of the medium-voltage switchgear. (For the dimensions of the equipment see chapter 3.4 Dimensions and Floor Recesses) Installation 1. -
Page 34: Installation And Earthing The Cable Connections
Installation and earthing the cable connections NOTICE Only plug-in cable connectors, Cellplux type (Company Cellpack) are to be used. DANGER High voltage, danger of death - Compliance with the 5 safety rules (see chapter 2.2.1 Five Safety Rules) is essential whenever work is being performed on the switchgear. - All open connection cones must be covered as protection against being touched. - Page 35 Schematic diagram: Current transformer Cable screen Conductor - The cable screen must be brought through the current transformer and earthed. Cover open connection cones The switchgear must not be operated using open con- nection cones; instead these must be fitted with screw- on insulating caps of the correct voltage rating as pro- tection against being touched.
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Page 36: Commissioning And Operation
Commissioning and operation Safety instructions DANGER High voltage, danger of death Switching on may be performed only by authorised and competent personnel! When switching on the equipment, make sure that no personnel are working on it and that all the cladding elements on the equipment are closed and properly secured. -
Page 37: Operation
Operation Operation of the switchgear is performed via the spring drive (6) and pre-selector switch (5) by turning the operating key supplied (see chapter 8.2.1 Special Tools) in the direction of rotation shown on the front fascia. 1. Position display LS ON/ OFF 2. -
Page 38: Switching
Switching • Each switch panel is provided with a drive system for manual ope- ration. The operating key supplied (see chapter 8.2.1 Special Tools) allows all 3 phases of each switch panel to be switched. The spring elements fitted ensure correct fast switching, both ON and OFF. •... -
Page 39: Earthing The Input Or Output Cables
Earthing the input or output cables DANGER High voltage, danger of death Compliance with the 5 safety rules (see chapter 2.2.1 Five Safety Rules) is essential whenever work is being performed on the switchgear. 1. Press the OFF button to switch off the circuit breaker. 2. -
Page 40: Insulating Fluid Level Sight Glass
Insulating fluid level sight glass A level sight glass is incorporated in the panel of the front fascia. This allows the current level of the insulating fluid to be read reliably at any time. The level is indicated by the green float sphere in the sight glass. -
Page 41: Repair
• EN 62271-100 • EN 62271-200 • DIN 31051 Concept The repair concept of the ECOS-C medium-voltage switchgear consists of the following operations five sub-groups: • Visual check • Inspection (functional check / identification of condition) • Maintenance (certificate of good operating condition) •... -
Page 42: Visual Check
Visual check Regular visual checking (at least once a year) by the operating company allows detection of evident defects and assessment of the overall condition of the equipment. Visual checking of the ECOS-C medium-voltage switchgear consists essentially of: a) Checking the insulation system for leaks When doing this, a check should be made that the level of insulating fluid in the sight glass is suffi- ciently high, and the floor of the switch bays should be visually checked for spots of insulating fluid. -
Page 43: Inspection
This maintenance work may be performed only when the equipment is voltage-free. NOTICE Maintenance • Maintenance work may only be performed by DRIESCHER or by specialist personnel authorised by us. • Only original DRIESCHER parts and accessories may be fitted. -
Page 44: Corrective Maintenance / Upgrade
ECOS-C medium-voltage switchgear is subject to continuous development in the light of experience and technical developments. Therefore upgrades may also be performed in the course of an corrective maintenance. - Page 45 End of the working life As far as we are aware, the ECOS-C medium-voltage switchgear unit contains no raw materials or materials that are harmful to the environment. Therefore no additional charges for disposal of special waste are incurred when at the end of the product’s working life the equipment is reprocessed into waste products.
- Page 46 Appendix Nameplate The nameplate can be found on the front of the equipment. A second nameplate is fitted inside the equipment on the right-hand side. Configuration of the equipment Rated values data Applicable standards Circuit breaker (T4) Equipment Equipment Busbar connection (T0) Rated values data Applicable standards Circuit breaker...
- Page 47 Accessories and spare parts NOTICE Use only original spare parts For correct operation of the equipment we recommend that only original accessories and spare parts from the manufacturer are used. 8.2.1 Special tools This chapter lists tools that may not be standard equipment in a workshop or are supplied with the switchgear or can be ordered at a later date as required.
- Page 48 Desiccation cartridge 2.0 for the equalising tank VDS system: WEGA 1.2C capacitive voltage display according to EN 61243-5 • for voltage display • for voltage testing Horstmann Orion Compare phase comparison device according to EN 61243-5 (optional) • for phase comparison testing •...
- Page 49 Cellplux Cellpack plug-in cable connectors Cellplux CTS 630 A 24 kV / EGA Screw-on cable plug connectors for infeed cables Cellplux CTKS 630 A 24 kV Screw-on coupling plug connectors for infeed cables (in conjunction with CTS 630 A) Cellplux CTKSA 630 A 12 bis 24 kV Screw-on coupling plug surge arrestors for the incoming cables (in conjunction with CTS 630 A) Cellplux CIK 630 A 24 kV...
- Page 50 2-90101087 Desiccation cartridge 2.0 for the equalising tank Accessories and spare parts can be ordered from DRIESCHER. Necessary data for ordering component spare parts are as follows: • The type, job number and schematic number of the switchgear (see nameplates)
- Page 51 Troubleshooting / fault rectification If the suggested actions fail to rectify the fault, inform the manufacturer without fail. No actions may be undertaken apart from those described in this manual. Nature of the fault Cause of the fault Remedial action ...
- Page 52 STROM • SICHER • SCHALTEN Dimensions, weights, diagrams and descriptions in this brochure are non-binding. Subject to change without notice. Printed on chlorine free bleached paper. For nature´s sake. Elektrotechnische Werke Fritz Driescher & Söhne GmbH Driescherstr. 3 D-85368 Moosburg Phone: +49 8761 681-0 Fax: +49 8761 681-137 E-Mail: infoservice@driescher.de...
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