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Supplier: Block USA, Inc.
Description: Input rated voltage 3 x 690 Vac Output rated voltage 3 x 400 Vac Rated power 650 - 1386 VA Ambient temperature +60° C Protection index IP 00 Autotransformer to: VDE 0570 Part 2-13, DIN EN 61558-2-13, EN 61558-2-13, IEC 61558-2-13 Matching transformers to adjust the supply
- Maximum Primary Voltage Rating: 690 volts
- Maximum Secondary Voltage Rating: 400 volts
- Power Rating (VA): 1,386 VA
- Operating Frequency Range: 50 to 60 Hz
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Description: performance in excess of the U.S. DOE Candidate Standard Level 3 performance standard (NEMA Premium) requirements.
- Maximum Primary Voltage Rating: 480 to 600 volts
- Maximum Secondary Voltage Rating: 380 to 480 volts
- Power Rating (VA): 15,000 to 500,000 VA
- Features: 50 / 60 Hz, 60 Hz, AC, NEMA Enclosure, Other
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Supplier: Powertronix Inc.
Description: 3-Phase Auto Transformers offer a significant size and weight reduction as well as lower cost. Auto Transformers are for voltage step up or step down when there is no requirement for electrical isolation. APPLICATIONS Automation Marine
- Power Rating (VA): 2,000 to 120,000 VA
- Other Transformer Types / Applications: Autotransformer, Three Phase / Polyphase Transformer
- Features: Other
- Category: Power / Power System / Distribution Transformer
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Description: Acme's single phase transformers are design for use in industrial and commercial application. Transformers rated up to 25 kVA are enclosed within an encapsulated, NEMA 3R enclosures. Standard transformers rated from 37.5 to 250 kVA are enclosed in ventilated, NEMA 2 enclosures (optional
- Maximum Primary Voltage Rating: 240 volts
- Maximum Secondary Voltage Rating: 120 to 240 volts
- Power Rating (VA): 1,000 to 15,000 VA
- Features: 60 Hz, AC, NEMA Enclosure, Other
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Supplier: Selectric, Inc.
Description: NEMA 3R enclosure, splitter block, 3 magnetic contactors, transition timer
- Motor Voltage: 460 volts
- Three Phase Power: 60 HP
- NEMA Size: 3
- Features: AC Motor Starter
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Supplier: Shenzhen Xingkerong Technology Co., Ltd
Description: Home // All Collections // Transformer // 98% Efficiency 400KVA 500KVA Power Transformer Outdoor Indoor 400 500 KVA 3 Phase Transformer Customizable
- Maximum Primary Voltage Rating: 1,000 volts
- Maximum Secondary Voltage Rating: 1,000 volts
- Power Rating (VA): 500,000 VA
- Operating Frequency Range: 50 to 60 Hz
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Supplier: Shenzhen Xingkerong Technology Co., Ltd
Description: Home // All Collections // Transformer // 3KVA 5KVA 7KVA 10KVA Isolation Three Phase Power Transformer 15KVA 20KVA 30KVA 40KVA 50KVA 60KVA
- Maximum Primary Voltage Rating: 1,000 volts
- Maximum Secondary Voltage Rating: 1,000 volts
- Power Rating (VA): 60,000 VA
- Operating Frequency Range: 50 to 60 Hz
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Description: base rated as follows: 833 kVA and above single-phase, 750 kVA and above three-phase. This standard applies to all liquid-immersed power transformers and autotransformers that do not belong to the following types of apparatus: instrument transformers, step voltage and induction
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Description: purposes and base rated as follows: 833 kVA and above single-phase, 750 kVA and above three-phase. This standard applies to all liquid-immersed power transformers and autotransformers that do not belong to the following types of apparatus: instrument transformers, step voltage
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Description: purposes and base rated as follows: 833 kVA and above single-phase, 750 kVA and above three-phase. This standard applies to all liquid-immersed power transformers and autotransformers that do not belong to the following types of apparatus: instrument transformers, step voltage
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Supplier: CSA Group
Description: rated supply voltage not exceeding 1 000 V a.c., a rated frequency not exceeding 500 Hz. The core power does not exceed: - 1 kVA for single-phase auto-transformers; - 5 kVA for polyphase auto-transformers. The rated output does not exceed: - 20 kVA for single-phase auto-transformers; -
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Supplier: Hubbell Incorporated
Description: DISTRIBUTION, DRY TYPE 5.13 INCH 5.5 INCH 11.62 INCH 60 HZ FREQUENCY RATING 1 PHASE(S) UL, CSA APPROVAL INDUSTRIAL, COMMERCIAL APPLICATION NEMA 3R ENCLOSURE 3 KVA POWER RATING 240 VAC PRIMARY VOLTAGE 120/240 VAC SECONDARY VOLTAGE APPLICABLE STANDARD ANSI, OSHA MOUNTING TYPE WALL DESIGN
- Operating Frequency Range: 60 Hz
- Maximum Primary Voltage Rating: 240 volts
- Maximum Secondary Voltage Rating: 120 to 240 volts
- Power Rating (VA): 3,000 VA
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Supplier: Mirus International, Inc.
Description: A 3-phase, low zero sequence impedance autotransformer, which when connected near to and in parallel with the harmonic generating non-linear loads (usually connected at the distribution panel), provides an alternate path for 3rd, 9th, & 15th current harmonics (triplens) which
- Maximum Primary Voltage Rating: 600 volts
- Power Rating (VA): 750,000 VA
- Features: 60 Hz, Other
- Other Transformer Types / Applications: Autotransformer
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Supplier: Radwell International
Description: AUTOTRANSFORMER, 18-PULSE MITIGATOR, 125HP 3PHASE, 600VAC 60HZ, 1-9 RECTIFIED OUTPUT. FREE 2 YEAR RADWELL WARRANTY
- Category: Power / Power System / Distribution Transformer
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Supplier: Radwell International
Description: DISCONTINUED BY MANUFACTURER, AUTOTRANSFORMER, 1 PHASE, PRI: 0.78AMP 400-440-460-480-500V, SEC: 1.3AMP 230V. FREE 2 YEAR RADWELL WARRANTY
- Category: Power / Power System / Distribution Transformer
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Supplier: Shenzhen Xingkerong Technology Co., Ltd
Description: Home // All Collections // Transformer // 1KVA 2KVA 3KVA 4KVA 5KVA Transformer Without box
- Maximum Primary Voltage Rating: 1,000 volts
- Maximum Secondary Voltage Rating: 1,000 volts
- Power Rating (VA): 60,000 VA
- Operating Frequency Range: 50 to 60 Hz
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Supplier: RS Components, Ltd.
Description: RS PRO WCV3E-1 Variac
- Features: Other
- Standards: RoHS Compliant
- Other Transformer Types / Applications: Single Phase Transformer, Variac / Variable Autotransformer
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Supplier: Solcon Solutions LLC
Description: The RVS-AX provides an optimal solution for small to medium size motors and is an ideal cost effective replacement for Star-Delta and Auto-Transformer type starters. It is easy to install and operate with built-in Current Limit and Motor Protection, integral bypass and 3-phase control.
- Continuous Current: 8 to 170 amps
- Motor Voltage: 230 to 600 volts
- Features: AC Motor Starter
- Other Protective Feature: Low Voltage Protection
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Supplier: Siemens Energy Sector
Description: In the power range above 200 MVA, generator and network intertie transformers with off-load or on-load tap changers, or a combination of both, are recommended. Depending on the onsite requirements, they can be designed as multiwinding Power Transformers or autotransformers, in
- Mounting: Pad-Mounted
- Category: Power / Power System / Distribution Transformer
- Other Transformer Types / Applications: Power Transformer, Single Phase Transformer
- Winding Turns: Step-Down Transformer, Step-Up Transformer
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Description: IEC 60076-15:2015 applies to three-phase and single-phase gas-filled power transformers (including auto-transformers) with the exception of certain categories of small and special transformers such as: - single-phase transformers with rated power less than 1 kVA and
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Supplier: CSA Group
Description: IEC 60076-15:2015 applies to three-phase and single-phase gas-filled power transformers (including auto-transformers) with the exception of certain categories of small and special transformers such as: - single-phase transformers with rated power less than 1 kVA and
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Supplier: SMC International
Description: section in a substation. The regulation system is based on a continuously variable autotransformer (Variac) that supplies to a power transformer that delivers the high current outputs and isolate the main supply from the load. A built-in ammeter and a timer gives the information about the
- Testing Voltage Range: 3.2 to 10.5 volts
- Testing Current Range: 250 to 1,000 amps
- Test Variable: AC
- Standards / Compliance: CE Marking
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Description: devices for use in three-phase systems, and single-pole devices for use in single-phase systems. Two-pole contactors and starters for use in single-phase systems are subject to agreement between manufacturer and user. This standard cancels and replaces the second edition of IEC
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Supplier: CSA Group
Description: devices for use in three-phase systems, and single-pole devices for use in single-phase systems. Two-pole contactors and starters for use in single-phase systems are subject to agreement between manufacturer and user. This standard cancels and replaces the second edition of IEC
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Supplier: CSA Group
Description: kVA for single-phase transformers; 2 kVAR for single-phase reactors; 5 kVA for poly-phase transformers; 10 kVAR for poly-phase reactors. NOTE 2 Separating transformers are used where double or reinforced insulation between circuits is not required by the installation
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and test equipment announces a New 4X4 BUTLER Matrix with broadband frequency coverage from 2.4 to 7.25 GHz. A Butler matrix is a beamforming network used to feed a phased array of antenna elements. Its purpose is to control the direction of a beam, or beams, of radio transmission. KRYTAR’s (read more)
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custom power transformers to meet the requirements of virtually every power application. We offer customers a wide array of transformer products, including: 3-phase transformers Audio transformers Autotransformers Buck-boost transformers (read more)
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Finally fiber optic sensing of power transformer “Hotspots” is paying off
… the early 1980s a successful project was completed by General Electric Co. (GE), Public Service Electric & Gas Co.(PSE&G), and Luxtron Corporation by installing direct winding temperature sensors using Flouroptic® thermometers, in an operational 3 phase autotransformer rated 230kV to 69kV …
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Hybrid UPS Based on Supercapacitor Energy Storage and Adjustable Speed Generator
3 Phase Autotransformer Pn=5kVA CONVI .
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Design, installation, and field experience with a real-time portable transformer monitoring system
An example of this can be seen in Fig. 8 which was generated by exporting monitored data to the same spread sheet file as data from a loading algorithm for a 3001336 MVA, 230kV, 3 phase autotransformer .
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Testing Contaminated Insulators at Project UHV for Voltage Levels of the Future
If lower voltages are required they are available by use of a 40 MVA, 3 phase auto- transformer with a maximum 400 kV output (700 kV 1-1) which also can be used in combination with the regu- lating transformer to provide …
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EHV Application of Autotransformers
If the 3 - phase autotransformer or the bank of three single-phase units does not have a tertiary winding, the zero-sequence im- pedance, ZT;O, will vary in magnitude as shown in Fig. 3.
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Interconnection of Power Sources having Small Frequency Difference
Fig.3 shows a 3 - phase autotransformer connected in delta.
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Standard Handbook for Electrical Engineers, Sixteenth Edition > TRANSFORMERS
It may be a two-winding unit with a delta-connected secondary winding and a Y-connected primary winding which provides the neutral for grounding purposes, or it may be a single-winding 3 - phase autotransformer with windings in interconnected Y or …
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http://vbn.aau.dk/ws/files/14765739/sigrid_bolik.pdf
THE 2-WINDINGS 3 - PHASE AUTOTRANSFORMER .............................................................................................61 4.4 .
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http://www.thescipub.com/pdf/10.3844/ajassp.2005.1305.1308
Figure 3 shows a 3 - phase autotransformer connected .
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Comparison of Voltage Sag Generators for Wind Power System
According to the work principle of transformer and bidirectional switches based VSG mentioned above, an experimental prototype is built with 3 - phase autotransformer , the bidirectional switches are composed of relay, thyristor and IGBT respectively, and experimental comparison is carried out for three …