Carl E. Holmes Company
CEHCO provides SCR and Diode Rectifiers for a variety of applications that includes anodizing, water treatment, general metal finishing, crane duty, electrochemical applications, and the latest development in power conversion technology.
- (714) 666-0787
(714) 624-4740 - quote@cehco.com
- 1139 N. Kraemer Place
Anaheim, CA 92806
United States of America
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Product
IGBT Power Supply, 120 KW, 0 to 16 VDC, 7500 AMPS, P/N 6132C
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IGBT Power Supply, 120 KW, P/N 6132CInput: 480 VAC, 3 PH, 60 HzOutput: 0 to 16 VDC, 7500 AmpsRipple does not degrade when the output voltage is reducedDigital remote with Voltmeter and Ammeter and potentiometers includedDimensions: 20.00”W x 67”H x 24.5”D.Estimated weight: 600 lbs.
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Product
Switch Mode Power Rack Rectifiers
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The Switch Mode Power Rack Rectifier is a complete modular rectifier designed as a ready-to-go system to generate high-quality DC, available in air or water cooling.
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Product
Switch Mode Power Supplies-Water Cooled
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The MSW Rectifiers are based on Switch Mode Technology. This reliable technology assures excellent quality DC currents with a ripple of < 3% and a control accuracy of less than 1%.The MS-Series features constant voltage and current control with easy, quick installation and maintenance. Modular versions easily increase the output by means of series or parallel connection. All models have DC short circuit protection. With forced air-cooled models, the cooling air quantity is controlled in relation to the load reducing contamination and noise levels.
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Product
12 Pulse SCR Controlled High Voltage Power Supply
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- 12 Pulse SCR Controlled Power Supply, P/N 19435PS- Input: 480 VAC, 300 Amps, 3 PH, 60 Hz- Output: 0 to 3000 VDC ± 10%, 80 Amps max adjustable with potentiometers, and 4/20 mA input signals from the PLC- Output voltage and current are provided as 4/20 mA signals to PLC- Contactor and overload relay are installed for protection- Power ON Light- Start / Stop capability- EPO capability- Manual voltage control and current limit- PLC interface- Output voltage and current are displayed on the voltmeter and ammeter.- A selector switch is used to select between manual Control or PLC Control- The customer is responsible for the PLC controller and PLC programming- Power enclosure, 68″H x 65″W x 44″D- Control enclosure: 20″H x 16″W x 9″D- Weight: 5000 lbs. approximately- All input/output connections are inside the enclosure
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Product
MRI POWER SUPPLIES
MRI Series
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Input: 208 VAC ± 5 %, 3 PH, 60 HzOutput: 120 VDC fixed, 20 AmpsPower: 2.4 KWRipple: 5 %Enclosure: NEMA 1(20″ H x 16″ W x 9″ D)Weight: 125 lbs
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Product
Bridge Rectifier Assemblies
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Bridge Rectifier Assemblies are constructed by packaging diodes and/or SCR components with heat sink extrusions in a bridge circuit.CEHCO uses M, T, N and W heat sink extrusions to build rectifier assemblies.
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Product
Transformer Rectifier Assemblies
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Transformer rectifier assemblies are very useful in OEM applications when unregulated DC output is required. Input power can be single-phase or three phases. With single-phase input power, the output ripple is 50%. With three-phase input power, the output ripple is 5%. A 5% output ripple is a clear advantage. Hence, transformer rectifier assemblies with three-phase input power are more popular. Circuit breakers, fuses, voltmeters, and ammeters can be added per customer requirements. The assemblies can be an open frame or inside an indoor enclosure.
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Product
High Voltage Power Supplies
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High voltage SCR controlled power supplies require the following:Output voltage is high. Output current is generally Low.Voltmeter and ammeter display the output voltage and current under load.Potentiometers are used to adjust output voltage and limit output current from minimum to maximum.
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Product
Custom DC to DC Converters
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CEHCO is manufacturer, re-seller, and distributor of Power Rectification products such as DC Rectifiers, Transformer Rectifier Assemblies, and Custom Power Supplies since 1945.
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Product
MRI Power Supplies
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MRI Power Supplies are used in MRI Imaging rooms in hospital environments. The lights in the MRI rooms require DC power. If AC power is used, the quality of the MRI imaging process is compromised. These units are ideal for the MRI room, where a 60 Hz flicker-free light environment is desired. CEHCO offers four models which are shown below.
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Product
Active Switching Power Supply Using Mosfet, 125 KW, P/N 5940C2
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- Active Switching Power Supply Using MOSFET, 125 KW, P/N 5940C2- Input: 480 VAC, 150 Amps, 3 PH, 60 Hz- Output: 0 to 50 VDC, 2500 Amps max- Ten modules in parallel, each module is rated for 0 to 50 VDC, 300 Amps- PLC Control provides Positive Polarity, Negative Polarity and Shuts OFF- Start / Stop capability and EPO- Output voltage and current are displayed on the voltmeter and ammeter- PLC supplied by the customer. We provide a PLC interface only- Indoor enclosure dimensions: 65″W x 50″H x 36″D or (TBD)- Estimated weight: 2000 lbs. or (TBD)
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Product
Bipolar Power Supply, 0 to ±50 VDC, 100 AMPS, 10 KW, P/N 19215PS
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Specifications:Bipolar Power Supply, 10 KW, P/N 19215PSInput: 220 / 230 / 240 VAC, 46 Amps, 1 PH, 50 HzOutput 1: 0 to ± 50 VDC, 100 Amps max, Upper SectionOutput 2: 0 to ± 50 VDC, 100 Amps max, Lower SectionEnclosure: 42″H x 32″W x 22″DAll connections are inside the enclosureThis unit is a dual output power supply
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Product
SCR CONTROLLER WITH REGULATOR
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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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Product
AC to DC Programmable Power Sources
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CEHCO can supply AC to DC Programmable Power Sources. We offer standard or customized solutions. The ADG-L Series is up to 1000 VDC maximum output. ADG-P Series is up to 2000 VDC maximum output.
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Product
Regulated Power Supplies, Output 0 to 24 VDC, 400 AMPS, 9.6 KW, P/N 5944C2
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- Regulated Power Supply, 9.6 KW P/N 5944C2- Input: 220 VAC, 3 PH, 50/60 Hz- Output: 0 to 24 VDC, 400 Amps max- Duty factor: 100%- Ripple voltage: <3% across full output range- Setting: 0 – 100% current and voltage- Control: Constant current and voltage control- Ambient temperature: up to 95 degrees F- cooling: Forced air-cooled- Dimension: 17.6″H x 19.9″W x 21.6″D- Weight: 175 lbs.- Degree of protection: NEMA 2
