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  • Accuracy Class Of Current Transformer - Electrical Volt

    2018-9-16u2002·u2002The standard accuracy classes according IEC are class 0.2, 0.5, 1, 3 and 5. The CT with accuracy class of0.1, 0.2, 0.5, 1.0 accuracy class are used for measurement of electric current.0.1 and 0.2 accuracy class CT are used in a revenue metering application. 0.2 class metering CT means the CT functions within the specified accuracy limit at 100 ...

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  • three phase current transformer for Better Illumination -

    Mini busbar CT 60A 80A 100A single phase micro toroidal epoxy resin current transformer DC immunity 0.05 class WSD-707D-U $1.10-$1.15 Piece 100 Pieces (Min. Order)

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  • CT1 Current Transformers Ratio Polarity Types

    2019-2-4u2002·u2002Current Transformers (CT's) are instrument transformers that are used to supply a reduced value of current to me- ... Relaying Accuracy CT's Class C (C for Calculated) is low leakage reactance type - typical of donut units - Formerly Class L ( L for Low ... 0.1, 0.2, 1.0, 2.0, 4.0, 8.0 ohms. Sheet 5 Transformers Current Transformers ...

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  • CURRENT TRANSFORMERS - GE Grid Solutions

    1997-12-8u2002·u2002for phase-to-phase and two-phase-to-ground faults. CURRENT-TRANSFORMER BURDEN All CT accuracy considerations require knowledge of the CT burden. The externalload applied to the secondary of a current transformer is called the Òburden.Ó The burden is expressed pr eferably in ter ms of the impedance of the load and its r esistance and r eactance

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  • Current transformers Technical Datasheet

    2021-8-14u2002·u2002Application diagram of a CT. VV The Ip/5 A ratio current transformer delivers at the secondary a current (Is) of 0 to 5 A that is proportional to the current measured at the primary (Ip). This allows them to be used in combination with measurement equipment: • Ammeters. • Kilowatt-hour meters. • Measurement units. • Control relays.

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  • Current transformers - Socomec

    2017-8-7u2002·u2002Bar or cable-through three-phase CT trafo_014_b_1_cat Bar or cable-through CT trafo_013_b_1_cat Primary wound moulded case CT Current transformers Measurement devices from 5 to 5000 A References TRB 60 TRB 70 T2RB 115 TRB 135 Primary Secondary(1) Class 0.5 Reference Class 0.5 Reference Class 0.2s Reference Class 0.5 Reference 5 A 2.5 VA 192T ...

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  • Accuracy Class of Current Transformer - Electrical Concepts

    2020-4-29u2002·u2002Please specify the requirements. Should we specify 1. the Primary Pick Up current and the relay setting current. 2. Relay model, 3. CT Secondary lead burden etc.

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  • Current Transformer White Paper - Current Sensors for

    2017-11-14u2002·u2002The Basics of Current Transformers Ratio The CT ratio is the ratio of primary current input to secondary current output at full load. For example, a CT with a ratio of 300:5 is ... 10% Rated Current Class Min Max Min Max 1.2 0.998 1.012 0.976 1.024 ... a transducer with a range of 0–10 amps can be used. Current Transformer Shorting

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  • Current Transformer Types and Applications : The Talema

    2020-6-29u2002·u2002The turns ratio of a current transformer can be altered by using multiple turns. The example below shows how a 300/5 A CT can be used as a 100/5 A CT by using three primary loops to reduce the turns ratio from 60:1 to 20:1. This enables a higher rated …

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  • CURRENT TRANSFORMERS - GE Grid Solutions

    1997-12-8u2002·u2002for phase-to-phase and two-phase-to-ground faults. CURRENT-TRANSFORMER BURDEN All CT accuracy considerations require knowledge of the CT burden. The externalload applied to the secondary of a current transformer is called the Òburden.Ó The burden is expressed pr eferably in ter ms of the impedance of the load and its r esistance and r eactance

    Get Price
  • Current transformers - Current Transformer Manufacturer ...

    We are specialized in offering Summation Current Transformer to our clients. Our offered transformer is manufactured using the finest quality raw material and the most recent technology in compliance with the international quality standards. Specification: Class of Accuracy : Metering 0.5, 1.0,3.0,5.0.

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  • Selecting a Current Transformer (CT) - SVRI

    2021-9-13u2002·u2002Selecting a Current Transformer (CT) If the current ratio, burden and class are selected, the current transformer (CT) has been specified basically. Of course additional requirements like type, frequency, isolation level, maximal short circuit current and environmental conditions should also …

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  • CT Accuracy Standards - Continental Control Systems, LLC

    2021-6-8u2002·u2002The Accu-CT® series of current transformers (CTs) meet the accuracy requirements of two commonly used standards: ANSI/IEEE C57.13-2008 IEC 60044-1 Edition 1.2 Both of these CT accuracy standards describe the typical secondary output of a current transformer as 5 amps or 1 amp with an external burden. The Accu-CT ACT-0750 and ACT-1250 families have built-in […]

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  • Current Transformers - CT Transformer Latest Price ...

    8 Kv Copper Tape Wound Current Transformer. ₹ 2,500. Delta Electricals. Wound CT Copper 11 Kv Oil Immersed Current & Potential Transformers. ₹ 8,000. Sai Transformers & Switchgears. 5VA 11 KV Outdoor Current Transformer, Accuracy Class: 0.5, Upto …

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  • Current transformers Technical Datasheet

    2021-8-14u2002·u2002Application diagram of a CT. VV The Ip/5 A ratio current transformer delivers at the secondary a current (Is) of 0 to 5 A that is proportional to the current measured at the primary (Ip). This allows them to be used in combination with measurement equipment: • Ammeters. • Kilowatt-hour meters. • Measurement units. • Control relays.

    Get Price
  • Current Transformer (CT) - Construction and Working

    2018-12-18u2002·u2002Wound Type CT Toroidal (Window) Type CT Bar Type CT. Bar-type Current Transformer – This type of current transformer uses the actual cable or bus-bar of the main circuit as the primary winding, which is equivalent to a single turn. They are fully insulated from the high operating voltage of the system and are usually bolted to the current-carrying device.

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  • Current transformers,Voltage transformers and Instrument ...

    2011-4-15u2002·u2002Instrument transformers are used for measurement and protective application, together with equipment such as meters and relays. Their role in electrical systems is of primary importance as they are a means of 'stepping down' the current or voltage of a system to measurable values, such as 5A or 1A in the case of a current transformers or 110V or 100V in the case of a voltage transformer.

    Get Price
  • Instrument Transformers Application Guide

    2021-2-16u2002·u20029.7 Current transformer requirements for CTs according to other standards 127 9.7.1 Current transformers according to IEC 61869-2, class P, PR 127 9.7.2 Current transformers according to IEC 61869-2 class PX, TPS 127 9.7.3 Current transformers according to ANSI/IEEE 128 10. Non Coventional Instrument Transformers 129

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  • Current transformers Technical Datasheet

    2021-8-14u2002·u2002Application diagram of a CT. VV The Ip/5 A ratio current transformer delivers at the secondary a current (Is) of 0 to 5 A that is proportional to the current measured at the primary (Ip). This allows them to be used in combination with measurement equipment: • Ammeters. • Kilowatt-hour meters. • Measurement units. • Control relays.

    Get Price
  • CROMPTON INSTRUMENTS CURRENT TRANSFORMERS

    2015-9-10u2002·u2002highest primary current (peak value) that the CT can support for 1 second without damage, owing to ... MR-42-250/5A 250/5 10 5 2.5 42 80 30 86 0.5 MR-42-80/1A 80/1 1.5 - - 40 72 26 70 0.5 MR-42-100/1A 100/1 5 1.5 - 40 72 45 70 0.5 ... situations a Class PX current transformer will usually be specified. Class PX as

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  • Metering Current Transformers - Instrument Transformers ...

    2021-9-22u2002·u2002Metering Current Transformers (CTs) are used with the measuring instruments, such as ammeters, voltmeters, kilowatt-hour meters, etc to: Isolate the instruments from the power circuits, Standardise the instruments, usually at 5 amps or 1 amp. The scale of the instrument (according to the CT ratio), then becomes the only non-standard feature of ...

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  • Current Transformers - SmartPowerShop

    Current Transformers. A current transformer is a type of transformer that is used to measure alternating current. It produces a current in its secondary which is proportional to the current in its primary. Current transformers, along with voltage or potential transformers, are instrument transformers.

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  • Transformer Design & Design Parameters

    2014-12-8u2002·u2002– three-phase Type 1 Type 2 Type 3 . Transformer Consulting Services Inc. ... •Voltage class of the unit, levels of LI and SI, are determining selection of bushings, surge ... •Force is proportional to square of current Transformer Consulting Services Inc. Transformer Design: Short-circuit Design

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  • Current Transformers Range

    Current Transformers Range. U nsure which of our HOBUT current transformer range you need? Download our free Easy CT selection guide. Toroidal Ring Type Current Transformers. Moulded Case Current Transformers. Resin Cast Current Transformers. Moulded Case Rectangular Current Transformers. Split-Core Current Transformers.

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  • Current Transformer Basics and the Current Transformer

    The Current Transformer ( C.T. ), is a type of 'instrument transformer' that is designed to produce an alternating current in its secondary winding which is proportional to the current being measured in its primary.Current transformers reduce high voltage currents to a much lower value and provide a convenient way of safely monitoring the actual electrical current flowing in an AC ...

    Get Price
  • Instrument Transformers Application Guide

    2021-2-16u2002·u20029.7 Current transformer requirements for CTs according to other standards 127 9.7.1 Current transformers according to IEC 61869-2, class P, PR 127 9.7.2 Current transformers according to IEC 61869-2 class PX, TPS 127 9.7.3 Current transformers according to ANSI/IEEE 128 10. Non Coventional Instrument Transformers 129

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  • 6 electrical tests for Current Transformers explained

    2017-5-12u2002·u2002Current transformers play an important role in the monitoring and protection of electrical power systems. CT's are instrument transformers used for converting primary current into a reduced secondary current for use with meters, relays, control equipment and other instruments.. The importance of instrument transformer tests is often underestimated.

    Get Price
  • Instrument Transformers - GE Grid Solutions

    2009-10-14u2002·u2002Instrument Transformers. Low Voltage Current Transformers . 600 Volt Class - Indoor Type. Low Voltage Potential Transformers . 600 Volt Class - Indoor Type. Bushing Current Transformers . 600 Volt Class. Medium Voltage Current & Voltage Transformers . 5kV to 38kV - Indoor type. Instrument . Transformers. 731. 736 737. 735. g. Multilin. 729 ...

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  • 3 Phase Current Transformer – Ziegler

    3 Phase Current Transformer. The 3 in 1 type CTs enable easy installation with reference to MCB and MCCBs used in the panel. These CTs are categorized in 3 variants as specified below. Some variants of ZIS provides RJ12 Connections reducing the wiring efforts while connecting it with meters and on CT terminals. Category 3 in 1 CT.

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  • CT Accuracy Standards - Continental Control Systems, LLC

    2021-6-8u2002·u2002The Accu-CT® series of current transformers (CTs) meet the accuracy requirements of two commonly used standards: ANSI/IEEE C57.13-2008 IEC 60044-1 Edition 1.2 Both of these CT accuracy standards describe the typical secondary output of a current transformer as 5 amps or 1 amp with an external burden. The Accu-CT ACT-0750 and ACT-1250 families have built-in […]

    Get Price
  • Instrument Transformers - GE Grid Solutions

    2009-10-14u2002·u2002Instrument Transformers. Low Voltage Current Transformers . 600 Volt Class - Indoor Type. Low Voltage Potential Transformers . 600 Volt Class - Indoor Type. Bushing Current Transformers . 600 Volt Class. Medium Voltage Current & Voltage Transformers . 5kV to 38kV - Indoor type. Instrument . Transformers. 731. 736 737. 735. g. Multilin. 729 ...

    Get Price
  • Three Phase Current Transformers - Smart Process

    Product Features:Three Phase CTMade in the UK3 x 30 x 15.5mm Aperture60-160A Primary Current0.1A Secondary CurrentAccuracy Class 0.5,RJ12 ConnectionBusbar or DIN Rail MountedThe 3-in-1 current transformer range is for use with the Smart Process RJ12 meters which combines three traditional current tr.. …

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  • Current Transformers - SmartPowerShop

    Current Transformers. A current transformer is a type of transformer that is used to measure alternating current. It produces a current in its secondary which is proportional to the current in its primary. Current transformers, along with voltage or potential transformers, are instrument transformers.

    Get Price
  • Current transformers,Voltage transformers and Instrument ...

    2011-4-15u2002·u2002Instrument transformers are used for measurement and protective application, together with equipment such as meters and relays. Their role in electrical systems is of primary importance as they are a means of 'stepping down' the current or voltage of a system to measurable values, such as 5A or 1A in the case of a current transformers or 110V or 100V in the case of a voltage transformer.

    Get Price
  • Quality Split Core CT & Current Transformer Manufacturer

    Beijing GFUVE Electronics Co.,Ltd. is best Split Core CT, Current Transformer and Current Probe supplier, we has good quality products & service from China. ... Three Phase Reference Meter. Power Calibrator. Power Quality Analyzer. IEC61850 Test. ... CLASS: 0.2S,0.2,0.5, 5P10, 10P10, 10P20 RATIO: 5-3150A/5A OR 1A Contact Now ...

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  • Current Transformer Basics and the Current Transformer

    The Current Transformer ( C.T. ), is a type of 'instrument transformer' that is designed to produce an alternating current in its secondary winding which is proportional to the current being measured in its primary.Current transformers reduce high voltage currents to a much lower value and provide a convenient way of safely monitoring the actual electrical current flowing in an AC ...

    Get Price
  • CURRENT TRANSFORMER (CT) – Electrical Wave

    Definition– A current transformer is a device that is used to produce low ac current in the secondary winding which is proportional to the high ac current in the primary winding.; It is used for both metering & protection system. So, with the help of CT, high value of current can be …

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  • Three Phase Transformer Connections and Basics

    2021-4-13u2002·u2002In a delta connected ( Dd ) group of transformers, the line voltage, V L is equal to the supply voltage, V L = V S.But the current in each phase winding is given as: 1/√ 3 × I L of the line current, where I L is the line current. One disadvantage of delta connected three phase transformers is that each transformer must be wound for the full-line voltage, (in our example above 100V) and for ...

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  • Current transformers - Socomec

    2017-8-7u2002·u2002Bar or cable-through three-phase CT trafo_014_b_1_cat Bar or cable-through CT trafo_013_b_1_cat Primary wound moulded case CT Current transformers Measurement devices from 5 to 5000 A References TRB 60 TRB 70 T2RB 115 TRB 135 Primary Secondary(1) Class 0.5 Reference Class 0.5 Reference Class 0.2s Reference Class 0.5 Reference 5 A 2.5 VA 192T ...

    Get Price
  • Current Transformer Accuracy Ratings

    2020-8-6u2002·u2002Current Transformer Accuracy Ratings S.E. Zocholl, Schweitzer Engineering Laboratories, Inc. Current transformer accuracy is specified by the standards IEEE Std C57.13, IEEE Standard Requirements for Instrument Transformers and IEC-60044-1, Instrument Transformers— Part 1: Current Transformers.

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  • Transformer Design & Design Parameters

    2014-12-8u2002·u2002– three-phase Type 1 Type 2 Type 3 . Transformer Consulting Services Inc. ... •Voltage class of the unit, levels of LI and SI, are determining selection of bushings, surge ... •Force is proportional to square of current Transformer Consulting Services …

    Get Price
  • Current Transformers - Grainger Industrial Supply

    Current Transformers. 39 products. Use a current transformer from Grainger to monitor and measure electrical currents in panels and electrical equipment. Find a donut current transformer for digital or analog panels, or a 3 phase transformer for AC devices. Rely on Grainger for all your current transformers and other electrical needs.

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  • Instrument Transformers Application Guide

    2021-2-16u2002·u20029.7 Current transformer requirements for CTs according to other standards 127 9.7.1 Current transformers according to IEC 61869-2, class P, PR 127 9.7.2 Current transformers according to IEC 61869-2 class PX, TPS 127 9.7.3 Current transformers according to ANSI/IEEE 128 10. Non Coventional Instrument Transformers 129

    Get Price
  • AC Current Transformers - CR Magnetics

    CR Magnetics supplies an extensive line of toroid current transformers for any need. Our offerings include measuring from 10,000 amps to a few milliamps. This includes ANSI, Commercial, Ground Fault, High Frequency, Wound Primary, DC Immune and Nano Alloy current transformers.

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  • Current Transformer Concepts

    2020-8-6u2002·u2002burden values of 0.1, 0.2 and 0.5, with a 25.80 impedance angle, are used for rating metering cts which are of insufficient accuracy for relaying. A multi-ratio ct is voltage rated using the maximum turns ratio. The voltage read from the upper curve at 10 amps excitation current is 486 volts. This is less than the standard rating of C800 but

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  • IEC and NEMA/IEEE ratings of current transformers (CTs) in ...

    2020-1-20u2002·u2002Figure 1 – Current transformer nameplate. Go back to Content Table ↑ 1.4 Rated thermal short-time withstand current: I th (kA). This is the highest level of rms primary fault current which the CT can endure, both thermally and dynamically, for 1 second without damage.When used in a medium voltage enclosure, the I th rating should match the short-time withstand rating of the …

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  • 6 electrical tests for Current Transformers explained

    2017-5-12u2002·u2002Current transformers play an important role in the monitoring and protection of electrical power systems. CT's are instrument transformers used for converting primary current into a reduced secondary current for use with meters, relays, control equipment and other instruments.. The importance of instrument transformer tests is often underestimated.

    Get Price
  • Three-Phase AC Current Measurement Using Current ...

    2016-8-1u2002·u2002Three-Phase AC Current Measurement Using Current Transformer Reference Design 4 System Design Theory The TIDA-00753 TI Design has been designed to meet high accuracy demands when measuring wide AC current ranges for motors. The design uses current transformers (CT), which have a very high turns ratio and are used when

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  • Current transformers - Socomec

    2017-8-7u2002·u2002Bar or cable-through three-phase CT trafo_014_b_1_cat Bar or cable-through CT trafo_013_b_1_cat Primary wound moulded case CT Current transformers Measurement devices from 5 to 5000 A References TRB 60 TRB 70 T2RB 115 TRB 135 Primary Secondary(1) Class 0.5 Reference Class 0.5 Reference Class 0.2s Reference Class 0.5 Reference 5 A 2.5 VA 192T ...

    Get Price
  • High Accuracy Class 0.1 Three-Phase Current Transformer

    China High Accuracy Class 0.1 Three-Phase Current Transformer, Find details about China Three-Phase CT, Current Transformer from High Accuracy Class 0.1 Three-Phase Current Transformer - Wuxi Liou …

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  • IEC and NEMA/IEEE ratings of current transformers (CTs) in ...

    2020-1-20u2002·u2002Figure 1 – Current transformer nameplate. Go back to Content Table ↑ 1.4 Rated thermal short-time withstand current: I th (kA). This is the highest level of rms primary fault current which the CT can endure, both thermally and dynamically, for 1 second without damage.When used in a medium voltage enclosure, the I th rating should match the short-time withstand rating of the entire switchgear.

    Get Price
  • Current Transformer, 300/5A, 600/5A, 1000/5A to 1500/5A ...

    AC current transformer accuracy classes can choose 1, 0.5, 0.5S, 0.2, or 0.2S, current ratio 300:5A, 600:5A, 800:5A and 1500:5A are optional, low cost and free shipping. Note: The installation method of current transformer can be fixed by busbar and fixed by the bottom plate, suitable for installation in any direction. The primary conductor can ...

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  • Small Single Three Phase 20A CT Current Transformer

    High quality Small Single Three Phase 20A CT Current Transformer Class 0.1 from China, China's leading 20A CT Current Transformer product, with strict quality control 20A single phase current transformer factories, producing high quality class 0.1 CT Current Transformer products.

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  • Current transformers, meters and associated products

    Howard Butler LTD is a UK manufacturer of instrumentation & control products such as current transformers, digital and analogue meters, transducers and protection relays. Howard Butler Ltd exports worldwide. We have been manufacturing in the UK since 1915 and employ over 100 people. View our manufacturing plant below. YouTube. HobutMedia.

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  • Current Transformer - Class CT Manufacturer from Rohtak

    With our leading technology and expertise, we are providing one of the best quality Core Balance Current Transformer (CBCT) available in the market. Made from high quality raw materials and latest of technology, these are used for earth leakage and earth fault protection and correction of phase displacement for differential protection of transformers.

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  • 10kv 20kv 33kv Mv Indoor and Outdoor Voltage Transformer

    150 5 AMP Magne Lab Sct Split Core Current Transformer CT 0.333 V US $88-100 Piece Fu120 0.2 0.5 Class Busbar Split Core Current Transformer CT

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  • Current Transformer: Definition, Principle, Equivalent ...

    A current transformer is an instrument transformer, used along with measuring or protective devices, in which the secondary current is proportional to the primary current (under normal conditions of operation) and differs from it by an angle which is approximately zero.

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