Showing results: 1 - 15 of 75 items found.
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STMicroelectronics
Featuring immunity to surges and transients in static states and commutations, our silicon-controlled rectifiers (SCR), also known as thyristors, are ideal for single- and three-phase power line networks, even in harsh environments up to 150°C. Thyristors (SCR) belong to our STPOWER family.
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Carl E. Holmes Company
SCR-controlled rectifiers are electronically controlled via analog signals for constant voltage and current control. The compact and service-friendly design complies with high industrial requirements and guarantees excellent operational reliability.The input voltage can be from 208 VAC to 600 VAC, 3 PH, 50/60 Hz. Maximum output voltage can be from 6 VDC to 600 VDC. Maximum output can be from 1000 Amps to 100000 Amps. These units can be air cooled, water cooled or oil cooled.
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Carl E. Holmes Company
The SCR Controller and the Regulator Board are used in SCR controlled power supplies.CEHCO offers single phase and three phase SCR Controllers with Regulator Boards.
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Carl E. Holmes Company
The SCR Controller and the Regulator Board are used in SCR controlled power supplies.CEHCO offers single phase and three phase SCR Controllers with Regulator Boards.Click the links below for additional details.
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Carl E. Holmes Company
SCR and Diodes are available as assemblies or discrete parts. Most assemblies are encapsulated. CEHCO stocks a variety of rectification products such as Diodes, SCR’s (silicon-controlled rectifiers), and Encapsulated Assemblies. We SCR and diodes replacement specialist. We specialize in obsolete and hard-to-find SCR and diode assemblies. We can offer an equivalent replacement for most obsolete rectification devices.
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Carl E. Holmes Company
SCRs and Diodes are used in the power sections of various power systems. A SCR Diode Tester is an important piece of equipment to determine if a SCR or a diode is defective in a power circuit. It is difficult and time-consuming to troubleshoot SCRs and Diodes with a digital meter.
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CH80 -
CABO Electronics
over-voltage protection.Protecting SCR and rectifier ,such as in Electric Locomotive
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Thyro-PX Series -
Advanced Energy
50 years of experience are infused in the Thyro-PX® series’ design and functionality. The SCR power controller is available in single-, dual-, and three-phase units, supports voltages from 690 V and 2900 A, and offers superior interface options. Integrate operating modes and parameters seamlessly with the 2.8-inch, LED Thyro-Touch display. And enable efficient system parameters, loading, and storage via an on-board SD-card. Thyro-PX power controller is ideally suited for your transformer and resistive loads for glass, metal, and ceramic manufacturing. It is optimal for heating elements in electric furnaces.
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Thyro-PX DC -
Advanced Energy
The Thyro-PX DC series shapes the future of the growing hydrogen and DC heating markets. The SCR power controller series takes advantage of the existing Thyro-PX controller card architecture and is available as three-phase units, supports up to 1800 amps DC Current, and offers superior interface options. Integrate operating modes and parameters seamlessly with the 2.8-inch, LED Thyro-Touch display and enable efficient system parameters, loading, and storage via an onboard SD-card. The Thyro-PX power controller is ideally suited for your transformer and resistive loads for glass, metal, and ceramic manufacturing. It is optimal for heating elements in electric furnaces.
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Carl E. Holmes Company
Variable DC power supplies are AC to DC power supplies with a variable DC output. The output can be varied with an SCR controller. The AC input power can be single-phase or three phases. With single-phase AC input, the DC output ripple is very high (50%). With three-phase AC input, the DC output ripple is low (5%). This would be a key benefit for selecting three-phase AC input instead of a single phase.
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PS Series -
Carl E. Holmes Company
Variable DC power supplies are AC to DC power supplies with a variable DC output. The output can be varied with an SCR controller. The AC input power can be single phase or three phases. With single phase AC input, the DC output ripple is very high (50%). With three phase AC input, the DC output ripple is low (5%). This would be a key benefit for selecting three phase AC input instead of single phase.
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SCR100 -
Peak Electronic Design Ltd.
Thyristors and Triacs need special test conditions to analyse effectively - that's where the new Atlas SCR comes in. The SCR100 can apply gate test currents from 100µA up to 90mA (with test load currents of up to 100mA) so it's not limited to sensitive parts.It will automatically identify the type of part (Thyristor or Triac), identify all three leads and also categorise the gate sensitivity. This new version takes a standard Alkaline AAA battery.
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74239 -
Carl E. Holmes Company
CEHCO P/N 74239Power Rating: 60 KWInput: 480 VAC, 3 PH, 60 HZOutput: 0 to 240 VDC, 250 Amp MaxSCR Controlled Power SupplyContactor, Start/Stop Control, Thermal Protection includedVoltage and current adjust availableFull operation and maintenance provided
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xPS Series -
Carl E. Holmes Company
High Voltage SCR Controlled Power Supply, P/N 18278PS Power Rating: 350 KW. Input: 480 VAC, 3 PH, 60 Hz Output: 0 to 5000 VDC, 70 Amps max Ripple: 2 % approximately at maximum rated voltage Configuration: 12 pulse externally SCR controlled rectifier system Protection Devices: Input contactors Overload relay shutoff Input surge suppressor Thermal switches Output current limiting resistor (made with 5 Ohm Kanthal heating element) Emergency power shutoff Cooling: Each 6 pulse rectifier assembly is cooled by three 10” fans Interface: 4/20 ma converter interface for output voltage and output current to SCR controller. Enclosure: The overall dimension of the unit is (78”H x 38”W x 53”D). It is comprised of two separate enclosures each with dimensions of (78” H x 38” W x 26” D) which are integrated together to form a single enclosure. Each half enclosure has one 6 pulse transformer and one 6 pulse high voltage rectifier. Weight: Approx. 5000 lbs. SCR Controller: The 12 pulse SCR controller is supplied by the customer. We were responsible for the 12 pulses Transformer and 12 pulses Rectifier section. Portability: Unit can be lifted up with a fork lift. It can also be moved around with a 5000 lb pallet jack. Transformer: Two 200 KVA transformers are used to step 480 VAC to 3750 VAC each in a 12 pulse configuration Rectifiers: Two 6 pulse rectifier assemblies capable for 5000 VDC and 60 Amps output were used. The high voltage rectifier assemblies are isolated and protected in a fiberglass plenum within the enclosure. Blocking Diode: Each diode of the 6 pulse rectifier consists of 10 diodes in series to offer a blocking voltage of 12000 V (PIV)