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
-
Product
MOTORIZED TRANSFORMER/RECTIFIER ASSEMBLY, 0-250 VDC, 200 A OUTPUT
18534PS1
-
Input power is 380 VAC, 3 PH, 50 Hz, P/N 18534PS1Output is 0 to 250 VDC, 200 Amp max.Variable Transformer is used to vary the output. SCR controller is not used, as it generates harmonics.Input control is 0 to 3.6 VDCIndoor enclosure, 50"H x 46"W x 36"DOutput voltage and current feedback as 4/20 mA for PLC interface.All input/output connections are inside the enclosure
-
Product
Rectifier Assemblies for Crane Applications
-
CEHCO manufactures Transformer Rectifier Assemblies for Crane Applications. We offer standard products and customized solutions.
-
Product
IGBT Power Supply, 24 KW, Output 0 to 16 VDC, 1500 AMPS, P/N 6133C
-
IGBT Power Supply, 24 KW, P/N 6133CInput: 480 VAC, 3 PH, 60 HzOutput: 0 to 16 VDC, 1500 AmpsRipple does not degrade when the output voltage is reducedDigital remote with Voltmeter and Ammeter and potentiometers includedDimensions: 20.00”W x 20”H x 24.5”D.Estimated weight: 200 lbs.
-
Product
Switch Mode Power Supplies-Water Cooled
-
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.
-
Product
SCR Controller with Regulator
-
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.
-
Product
AC to AC Programmable Power Sources
AFV-P Series
-
Rating:600 VA to 5 KVASingle Phase OutputOutput frequency: 45 Hz to 500 Hz (Optional for 15 Hz to 1000 Hz)
-
Product
Repair of Six Diode Bridge Assemblies, P/N 5989C
-
CEHCO is specialist in repair of various rectifier assemblies. One such assembly is shown below:Specifications:- Six Diode Bridge Assembly, P/N 5989C- AC input terminals: (3, 4 , 5)- DC output terminals: (1), POSITIVE and (2), NEGATIVE
-
Product
Regulated Power Supplies, Output 0 to 24 VDC, 400 AMPS, 9.6 KW, P/N 5944C2
-
- 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
-
Product
MRI Power Supplies
-
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.
-
Product
SCR Controlled DC power Supplies
-
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.
-
Product
Replacement Selenium Rectifiers
-
Selenium rectifier stacks are made up of selenium cells, which are mounted together and circuited as required for each application. They are available in configurations to suit all of the rectifier circuits.
-
Product
Replacement Selenium Surge Suppressor Specialists
-
Surge suppressors are used to protecting circuits from transients (sudden, brief increases in voltage). Transients of widely varying magnitudes are caused by such circuit components as motors, coils, magnets, relays, and transformers. They are found in all electrical systems and are notorious for damaging diodes, SCRs, transformers, triacs, and relay contacts.
-
Product
IGBT Power Supply, 0 to 16 VDC, 3000 AMPS, P/N 6134C
-
IGBT Power Supply, 48 KW, P/N 6134CInput: 480 VAC, 3 PH, 60 HzOutput: 0 to 16 VDC, 3000 AmpsRipple does not degrade when the output voltage is reducedDigital remote with Voltmeter and Ammeter and potentiometers includedDimensions: 20.00”W x 32”H x 24.5”D.Estimated weight: 300 lbs.
-
Product
SCR CONTROLLER WITH REGULATOR
-
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.
-
Product
Two Diode Assembly, P/N 6030C
-
Two Diode Assembly, P/N 6030CEach diode is rated for 400 Amps, 1200 PIVTwo diodes are installed on one heatsinkDimensions: 8”H x 8”W x 10”DEstimated weight: 20 lbs.When A is greater than B, Battery 2 is reversed BiasWhen B is greater than A, Battery 1 is reversed Bias
