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  • Al-Ahleia Switchgear Co. Kuwait

    2019-4-11 · Al-Ahleia executes turnkey-EPC projects for construction of 132 kV/11 kV Primary Substations for MEW, Kuwait. These substations incorporate equipment such as 30MVA Power Transformers, 250KVA Station Transformers, Neutral Grounding Resistors, 132kV Gas Insulated Switchgears, 11kV Double Busbar Vacuum Switchgear, associated Control & Relay Panels ...

    Get Price
  • ASC - Concrete Substations - Al-Ahleia Switchgear Co.

    2017-2-22 · CONCRETE SUBSTATIONS . Al-Ahleia executes turnkey-EPC projects for construction of 400kV/132kV/11kV Primary Substations for PAHW, MEW Kuwait. These substations incorporate equipment such as 300MVA/30MVA Power Transformers, 1000KVA/250KVA Station Transformers, Neutral Grounding Resistors, 400kV/132kV Gas Insulated Switchgears, 11kV Double Busbar …

    Get Price
  • Kuwait - Voltech Group Official Website

    2018-11-17 · Project : 132/11KV GIS Substation. Customer : Kuwait Oil Corporation, Kuwait. Executed Testing & Commissioning of. Testing of 132 /11 KV- 30 MVA Power Transformer. 132/11 KV Transformer Protection Trip Check. 132 /11 KV Trip Signals Check Up to Telemetry Panels. 132KV Bus bar Panel Scheme Check. 132 KV CT & VT Secondary Injection & Scheme Check

    Get Price
  • Kuwait invites bid for Construction of KAZMA B 132/11kV ...

    2020-2-11 · Kuwait invites bid for Construction of KAZMA B 132/11kV Substation. February 11, 2020 SaudiGulf Projects Power. Ministry of Electricity & Water (MEW), Kuwait issued a tender for the Supply and Installation of 132/11KV Substation to feed Shaikh Salem Elali Al …

    Get Price
  • Earthing transformers - Hitachi ABB Power Grids

    2021-9-13 · Earthing transformers. An earthing transformer is usually associated with three-phase supply systems. On a three-phase system, the neutral would be earthed either directly or through some limiting impedance resistance. When the neutral point is not available or does not exist with a delta secondary winding of the transformer, a neutral point ...

    Get Price
  • Rank General Trading & Contracting Company Kuwait

    Rank is the benchmark for other organization in the field of Engineering. It has highly qualified and well experienced Engineers, Supervisors and Technicians in its work force and programming scheduling system, which indicates periodical progress, performance and analysis of each project.

    Get Price
  • Transformer Grounding - CR4 Discussion Thread

    2016-2-3 · we have all 11KV/0.415KV power transformer to feed various residential loads. our transformer is pad mounted. it has a body ground point on 11KV winding side, one body ground point on 415V winding side. we want to earth the transformer neutral for a TN-C system. can we use a single grounding rod for the neutral earth as well as the two body earth points of transformer i.e. connect neutral as ...

    Get Price
  • Training program on Neutral Grounding - Electrical

    2019-2-11 · Rating of Neutral grounding transformer • NGT carries fault current for a short period. Rating based on short time rating. • If an NGT of 1MVA short time rating is required, we need not use 1MVA continuous rated transformer. Overload rating of Oil type transformer: • Overload of 4.7 times can be applied for 1 minutes- 212kVA continuous ...

    Get Price
  • 11/3.3kv Transformer grounding & switchgear rating -

    2007-2-8 · We have 11kv substation and then 11/3.3KV step down transformers and 3.3kv substation for 3.3kv motors and then to 400v system through 3.3kv/415v system. Now My questions.. 1) what is the best way to design the 11/3.3kv transformer grounding systems, i mean, either with solid grounding …

    Get Price
  • 11kv Generator Grounding - Electric power & transmission ...

    2008-8-2 · A 2mva 11kv generator is to be added as stand-by to an existing 11kv substation. The generator will operate in island mode when the utility supply fails. It will operate in parallel with the utility supply for peak shaving. The incoming transformer is grounded via a neutral-grounding resistor.

    Get Price
  • Al-Ahleia Switchgear Co. Kuwait

    2019-4-11 · Al-Ahleia executes turnkey-EPC projects for construction of 132 kV/11 kV Primary Substations for MEW, Kuwait. These substations incorporate equipment such as 30MVA Power Transformers, 250KVA Station Transformers, Neutral Grounding Resistors, 132kV Gas Insulated Switchgears, 11kV Double Busbar Vacuum Switchgear, associated Control & Relay Panels ...

    Get Price
  • ASC - Concrete Substations - Al-Ahleia Switchgear Co.

    2017-2-22 · CONCRETE SUBSTATIONS . Al-Ahleia executes turnkey-EPC projects for construction of 400kV/132kV/11kV Primary Substations for PAHW, MEW Kuwait. These substations incorporate equipment such as 300MVA/30MVA Power Transformers, 1000KVA/250KVA Station Transformers, Neutral Grounding Resistors, 400kV/132kV Gas Insulated Switchgears, 11kV Double Busbar Switchgear, associated Control & Relay …

    Get Price
  • Kuwait - Voltech Group Official Website

    2018-11-17 · Project : 132/11KV GIS Substation. Customer : Kuwait Oil Corporation, Kuwait. Executed Testing & Commissioning of. Testing of 132 /11 KV- 30 MVA Power Transformer. 132/11 KV Transformer Protection Trip Check. 132 /11 KV Trip Signals Check Up to Telemetry Panels. 132KV Bus bar Panel Scheme Check. 132 KV CT & VT Secondary Injection & Scheme Check

    Get Price
  • Kuwait invites bid for Construction of KAZMA B 132/11kV ...

    2020-2-11 · Kuwait invites bid for Construction of KAZMA B 132/11kV Substation. February 11, 2020 SaudiGulf Projects Power. Ministry of Electricity & Water (MEW), Kuwait issued a tender for the Supply and Installation of 132/11KV Substation to feed Shaikh Salem Elali Al Salim Al Sabah (Previously KAZMA B)'.

    Get Price
  • Earthing transformers - Hitachi ABB Power Grids

    2021-9-13 · Earthing transformers. An earthing transformer is usually associated with three-phase supply systems. On a three-phase system, the neutral would be earthed either directly or through some limiting impedance resistance. When the neutral point is not available or does not exist with a delta secondary winding of the transformer, a neutral point ...

    Get Price
  • Rank General Trading & Contracting Company Kuwait

    Rank is the benchmark for other organization in the field of Engineering. It has highly qualified and well experienced Engineers, Supervisors and Technicians in its work force and programming scheduling system, which indicates periodical progress, performance and analysis of each project.

    Get Price
  • Transformer Grounding - CR4 Discussion Thread

    2016-2-3 · we have all 11KV/0.415KV power transformer to feed various residential loads. our transformer is pad mounted. it has a body ground point on 11KV winding side, one body ground point on 415V winding side. we want to earth the transformer neutral for a TN-C system. can we use a single grounding rod for the neutral earth as well as the two body earth points of transformer i.e. connect neutral as ...

    Get Price
  • Training program on Neutral Grounding - Electrical

    2019-2-11 · Rating of Neutral grounding transformer • NGT carries fault current for a short period. Rating based on short time rating. • If an NGT of 1MVA short time rating is required, we need not use 1MVA continuous rated transformer. Overload rating of Oil type transformer: • Overload of 4.7 times can be applied for 1 minutes- 212kVA continuous ...

    Get Price
  • 11/3.3kv Transformer grounding & switchgear rating -

    2007-2-8 · We have 11kv substation and then 11/3.3KV step down transformers and 3.3kv substation for 3.3kv motors and then to 400v system through 3.3kv/415v system. Now My questions.. 1) what is the best way to design the 11/3.3kv transformer grounding systems, i mean, either with solid grounding or resistive gorunding?

    Get Price
  • 11kv Generator Grounding - Electric power & transmission ...

    2008-8-2 · A 2mva 11kv generator is to be added as stand-by to an existing 11kv substation. The generator will operate in island mode when the utility supply fails. It will operate in parallel with the utility supply for peak shaving. The incoming transformer is grounded via a neutral-grounding resistor.

    Get Price
  • Al-Ahleia Switchgear Co. Kuwait

    2019-4-11 · Al-Ahleia executes turnkey-EPC projects for construction of 132 kV/11 kV Primary Substations for MEW, Kuwait. These substations incorporate equipment such as 30MVA Power Transformers, 250KVA Station Transformers, Neutral Grounding Resistors, 132kV Gas Insulated Switchgears, 11kV Double Busbar Vacuum Switchgear, associated Control & Relay Panels ...

    Get Price
  • ASC - Concrete Substations - Al-Ahleia Switchgear Co.

    2017-2-22 · CONCRETE SUBSTATIONS . Al-Ahleia executes turnkey-EPC projects for construction of 400kV/132kV/11kV Primary Substations for PAHW, MEW Kuwait. These substations incorporate equipment such as 300MVA/30MVA Power Transformers, 1000KVA/250KVA Station Transformers, Neutral Grounding Resistors, 400kV/132kV Gas Insulated Switchgears, 11kV Double Busbar Switchgear, associated Control & Relay …

    Get Price
  • Kuwait - Voltech Group Official Website

    2018-11-17 · Project : 132/11KV GIS Substation. Customer : Kuwait Oil Corporation, Kuwait. Executed Testing & Commissioning of. Testing of 132 /11 KV- 30 MVA Power Transformer. 132/11 KV Transformer Protection Trip Check. 132 /11 KV Trip Signals Check Up to Telemetry Panels. 132KV Bus bar Panel Scheme Check. 132 KV CT & VT Secondary Injection & Scheme Check

    Get Price
  • Kuwait invites bid for Construction of KAZMA B 132/11kV ...

    2020-2-11 · Kuwait invites bid for Construction of KAZMA B 132/11kV Substation. February 11, 2020 SaudiGulf Projects Power. Ministry of Electricity & Water (MEW), Kuwait issued a tender for the Supply and Installation of 132/11KV Substation to feed Shaikh Salem Elali Al Salim Al Sabah (Previously KAZMA B)'.

    Get Price
  • Earthing transformers - Hitachi ABB Power Grids

    2021-9-13 · Earthing transformers. An earthing transformer is usually associated with three-phase supply systems. On a three-phase system, the neutral would be earthed either directly or through some limiting impedance resistance. When the neutral point is not available or does not exist with a delta secondary winding of the transformer, a neutral point ...

    Get Price
  • Rank General Trading & Contracting Company Kuwait

    Rank is the benchmark for other organization in the field of Engineering. It has highly qualified and well experienced Engineers, Supervisors and Technicians in its work force and programming scheduling system, which indicates periodical progress, performance and analysis of each project.

    Get Price
  • Transformer Grounding - CR4 Discussion Thread

    2016-2-3 · we have all 11KV/0.415KV power transformer to feed various residential loads. our transformer is pad mounted. it has a body ground point on 11KV winding side, one body ground point on 415V winding side. we want to earth the transformer neutral for a TN-C system. can we use a single grounding rod for the neutral earth as well as the two body earth points of transformer i.e. connect neutral as ...

    Get Price
  • Training program on Neutral Grounding - Electrical

    2019-2-11 · Rating of Neutral grounding transformer • NGT carries fault current for a short period. Rating based on short time rating. • If an NGT of 1MVA short time rating is required, we need not use 1MVA continuous rated transformer. Overload rating of Oil type transformer: • Overload of 4.7 times can be applied for 1 minutes- 212kVA continuous ...

    Get Price
  • 11/3.3kv Transformer grounding & switchgear rating -

    2007-2-8 · We have 11kv substation and then 11/3.3KV step down transformers and 3.3kv substation for 3.3kv motors and then to 400v system through 3.3kv/415v system. Now My questions.. 1) what is the best way to design the 11/3.3kv transformer grounding systems, i mean, either with solid grounding or resistive gorunding?

    Get Price
  • 11kv Generator Grounding - Electric power & transmission ...

    2008-8-2 · A 2mva 11kv generator is to be added as stand-by to an existing 11kv substation. The generator will operate in island mode when the utility supply fails. It will operate in parallel with the utility supply for peak shaving. The incoming transformer is grounded via a neutral-grounding resistor.

    Get Price
  • Al-Ahleia Switchgear Co. Kuwait

    2019-4-11 · Al-Ahleia executes turnkey-EPC projects for construction of 132 kV/11 kV Primary Substations for MEW, Kuwait. These substations incorporate equipment such as 30MVA Power Transformers, 250KVA Station Transformers, Neutral Grounding Resistors, 132kV Gas Insulated Switchgears, 11kV Double Busbar Vacuum Switchgear, associated Control & Relay Panels ...

    Get Price
  • ASC - Concrete Substations - Al-Ahleia Switchgear Co.

    2017-2-22 · CONCRETE SUBSTATIONS . Al-Ahleia executes turnkey-EPC projects for construction of 400kV/132kV/11kV Primary Substations for PAHW, MEW Kuwait. These substations incorporate equipment such as 300MVA/30MVA Power Transformers, 1000KVA/250KVA Station Transformers, Neutral Grounding Resistors, 400kV/132kV Gas Insulated Switchgears, 11kV Double Busbar …

    Get Price
  • Kuwait - Voltech Group Official Website

    2018-11-17 · Project : 132/11KV GIS Substation. Customer : Kuwait Oil Corporation, Kuwait. Executed Testing & Commissioning of. Testing of 132 /11 KV- 30 MVA Power Transformer. 132/11 KV Transformer Protection Trip Check. 132 /11 KV Trip Signals Check Up to Telemetry Panels. 132KV Bus bar Panel Scheme Check. 132 KV CT & VT Secondary Injection & Scheme Check

    Get Price
  • Kuwait invites bid for Construction of KAZMA B 132/11kV ...

    2020-2-11 · Kuwait invites bid for Construction of KAZMA B 132/11kV Substation. February 11, 2020 SaudiGulf Projects Power. Ministry of Electricity & Water (MEW), Kuwait issued a tender for the Supply and Installation of 132/11KV Substation to feed Shaikh Salem Elali Al …

    Get Price
  • Earthing transformers - Hitachi ABB Power Grids

    2021-9-13 · Earthing transformers. An earthing transformer is usually associated with three-phase supply systems. On a three-phase system, the neutral would be earthed either directly or through some limiting impedance resistance. When the neutral point is not available or does not exist with a delta secondary winding of the transformer, a neutral point ...

    Get Price
  • Rank General Trading & Contracting Company Kuwait

    Rank is the benchmark for other organization in the field of Engineering. It has highly qualified and well experienced Engineers, Supervisors and Technicians in its work force and programming scheduling system, which indicates periodical progress, performance and analysis of each project.

    Get Price
  • Transformer Grounding - CR4 Discussion Thread

    2016-2-3 · we have all 11KV/0.415KV power transformer to feed various residential loads. our transformer is pad mounted. it has a body ground point on 11KV winding side, one body ground point on 415V winding side. we want to earth the transformer neutral for a TN-C system. can we use a single grounding rod for the neutral earth as well as the two body earth points of transformer i.e. connect neutral as ...

    Get Price
  • Training program on Neutral Grounding - Electrical

    2019-2-11 · Rating of Neutral grounding transformer • NGT carries fault current for a short period. Rating based on short time rating. • If an NGT of 1MVA short time rating is required, we need not use 1MVA continuous rated transformer. Overload rating of Oil type transformer: • Overload of 4.7 times can be applied for 1 minutes- 212kVA continuous ...

    Get Price
  • 11/3.3kv Transformer grounding & switchgear rating -

    2007-2-8 · We have 11kv substation and then 11/3.3KV step down transformers and 3.3kv substation for 3.3kv motors and then to 400v system through 3.3kv/415v system. Now My questions.. 1) what is the best way to design the 11/3.3kv transformer grounding systems, i mean, either with solid grounding …

    Get Price
  • 11kv Generator Grounding - Electric power & transmission ...

    2008-8-2 · A 2mva 11kv generator is to be added as stand-by to an existing 11kv substation. The generator will operate in island mode when the utility supply fails. It will operate in parallel with the utility supply for peak shaving. The incoming transformer is grounded via a neutral-grounding resistor.

    Get Price
  • Rank General Trading & Contracting Company Kuwait

    Rank's electrical division conducts Installation, Testing, Commisioning & maintenance of electrical activities in Power, Oil & Gas sector. #. Activities. 1. Substation electrical installation works - 400KV 132kv 11kv 440volt. This covers installation of GIS switchgear, Transformer, 11kv Switchgear panels, Local & Remote-control panels ...

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  • Welcome to Veen Traders

    2019-8-1 · Product Name: 11KV, NGTR PANEL NGTR. Neutral grounding transformer and resistors is typically provided for generator neutral grounding or for MV system grounding. The transformer used is a dry type transformer with single phase at the primary(MV) rated voltage to the system phase to neutral voltage and the secondary(LV) rated voltage either ...

    Get Price
  • Substation Grounding Tutorial - University of Minnesota

    2017-11-9 · Substation Grounding Tutorial. Joe Gravelle, P.E. Eduardo Ramirez-Bettoni, P.E. Minnesota Power Systems Conference. Thursday, Nov. 9, 2017

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  • Transformer Grounding And Bonding Diagram

    Grounding of Electrical Zigzag Grounding Transformer BONDING Ground Rod Ground Rod Current Source Lightning Average current 30, amps. Feb 26, · A grounding electrode conductor for a single separately derived system shall be sized in accordance with for the derived phase conductors and shall be used to connect the grounded conductor of the ...

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  • TECHNICAL SPECIFICATION OF 33/11KV SUB-STATION

    Technical specification of 33/11kV Sub-Station (10 &16 MVA) (3-36) 3-4-1 Characteristics of the transformers a- Rated output -ONAN 16MVA or 10MVA b- Duty step-down outdoor service c- Type core, double wound 3-Phase. d- Rated voltage at no load for transformers H.V L.V 33kV 11.5 kV e- System Frequency 50 Hz f- Interphase connection H.V DELTA

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  • Impact of the transformer's grounding method on its ...

    2017-10-31 · Grounding a transformer directly or with a resistor results in lower internal overvoltages, than those appearing when a neutral grounding reactor is used: e.g. based of this study one may state that while the LV voltage to ground does not change significantly with grounding method, the voltage from a TV winding to ground and to the

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  • Zig Zag Transformers - Grounding Transformers - Niagara ...

    Zig-Zag Grounding Transformers. Grounding transformers are used to provide a ground path to a Delta or Wye connection system. Grounding is one of the most important aspects of electrical design and as such, Niagara Power Transformer manufactures grounding transformers with exceedingly high safety, durability and performance standards.

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  • Transformers - Emerson Electric

    2019-2-25 · A transformer has all the same component parts as a motor, and like a motor, exhibits an inrush when energized. This inrush current is dependent upon where in the sine wave the transformer was last turned off in relation to the point of the sinewave you are when you energize the transformer. Although transformer inrush could run up to 30 to 35 ...

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  • Mueller

    Mueller offers certified and tested (ASTM-F2249) light weight utility grounding assemblies with 'C' type clamps smooth jaws and eye screws. These grounding clamps and cables offer a light weight solution while providing the grounding required for safe work on de-energized lines. These light weight ground clamping assemblies come in 6, 10 or ...

    Get Price
  • Surge Arrester Sizing for Sub-Transmission Systems Using ...

    2020-10-31 · CLICK TO ENLARGE Fig.1: (top) 46 kV ungrounded sub-transmission station; (bottom) 46 kV grounding transformer CLICK TO ENLARGE Fig. 2: Line-to-ground fault current circulation in delta system with grounding transformer. CLICK TO ENLARGE System Considerations. A sub-transmission system is considered 'effectively grounded' at a particular location if the ratio between its zero …

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  • Kuwait invites bid for Construction of four 132/11kV ...

    2020-1-14 · Kuwait invites bid for Construction of four 132/11kV Substations. January 14, 2020 SaudiGulf Projects Power. Ministry of Electricity & Water (MEW), Kuwait issued following new Substations tenders: Construction of SHPT'C' 132/11 kV Substation. Construction of SHPT'D' 132/11 kV Substation. Construction of SHPT'E' 132/11 kV Substation.

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  • ENERGY SOLUTIONS

    2019-11-5 · KUSC-SC-E-0800-4600055338. Hyundai Engineering & Construction. Supply Contract for 11kV Substation – Sheikh Jaber Al-Ahmad Al-Sabah Causeway Project – Main Link (INCLUDING VARIATIONS) Ongoing. 2. KUSC-SC-S-0530. Hyundai Engineering & Construction. Service Contract for 11kV Substation Installation – Sheikh Jaber Al-Ahmad Al-Sabah Causeway ...

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  • China 11kv Transformer Manufacturers and Factory ...

    2021-8-25 · Getting started; 11kv Transformer; 11kv Transformer - Manufacturers, Factory, Suppliers from China. Fast and superior quotations, informed advisers to help you choose the correct merchandise that suits all your requirements, a short generation time, responsible quality control and different services for paying and shipping affairs for 11kv Transformer, Current Transformer Price, 20kv ...

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  • Transformer Failures, Causes & Impact

    2016-1-15 · Study of transformers, the faults that most commonly occur, the causes of these faults and their impact is conducted and discussed in this paper. The transformers that were studied were step-down transformers (11kv-220v) used by WAPDA in distribution sectors. Data about the transformer failure for the last 5 …

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  • Transformers - Hitachi ABB Power Grids

    2 days ago · Transformers. Hitachi ABB Power Grids is global leader in transformers, offering liquid-filled and dry-type transformers as well as services for complete life-cycle support, including replacement parts and components. Our portfolio allows utilities, industries and infrastructure sectors to maximize return on transformer assets by ensuring high ...

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  • Example of 33/11 kV substation on-site assessment report

    2019-7-17 · Work Completed. Work completed at the time included the construction of the 33/11 kVsubstation switchgear facility, guardhouse, fencing, exterior lighting, and installation of two 33kV to 11kV transformers (31500 kVA), two auxiliary transformers, neutral grounding system, 11 kV switchgear, and 33 kV switchgear.. The installation of substation electrical equipment was completed prior to site ...

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  • Isolation Transformers and Surge Protection

    Isolation Transformers: Isolation Transformers are generally composed of two separate windings with a magnetic shield between these windings to offer noise control. The transformer carries the full load current, and thus must be suitably sized. Rather than employing non-linear clamping devices, the transformer …

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  • Neutral Grounding Resistors – Aktif Group

    Phase-ground short-circuit current of the transformer and the generator is calculated to determine the limit current of the neutral grounding resistor. The resistor is designed to limit the failure current to 10% of this short-circuit current. This value shall be optimal to allow detection …

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  • Mueller

    Mueller offers certified and tested (ASTM-F2249) light weight utility grounding assemblies with 'C' type clamps smooth jaws and eye screws. These grounding clamps and cables offer a light weight solution while providing the grounding required for safe work on de-energized lines. These light weight ground clamping assemblies come in 6, 10 or ...

    Get Price
  • New Methods for Monitoring Neutral Grounding Resistors

    2018-3-27 · using a single phase Neutral Grounding Transformer (NGT) and a very low-resistance resistor that is installed at the secondary of the NGT. As a result, the neutral is high-resistance-grounded. The inherent and unintentional phase-to-ground capacitances of the generator and delta side are shown by c

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