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Product
48V / 250 Amp Load
EL15-48M
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For Telecom Rectifier and Power Supply testing. This particular Load has been designed to operate with Telecom 48V Rectifiers and Power Supplies with output Voltages in the range of 38V to 60V and is extremely cost effective.
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Product
S Series Panel Meter
ST-670R
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Standard Electric Works Co., Ltd
● DC up to 10A● Case and Composition: Acrylic resin front and Bakelite case Two studs mounting● Accuracy : Moving coil type：Class 2.0 Moving lron type：Class 2.5 Rectifier : Class 2.0● Color：Black case. white scale plate.● Pointer：Tube or knife-type, color in black or red.
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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
Turns Ratio Testers
TRT Advanced Series
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TRT Advanced series is the newest DV Power solution for transformer turns ratio measurement. Besides its main application, each turns ratio tester from this series also measures transformer excitation current and phase shift. Furthermore, all models perform automatic vector group detection and magnetic balance on three-phase transformers and three-phase autotransformers. They have a built-in true three-phase power source. For that reason, they can test transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.The instruments can output test voltages from 1 V AC to 500 V AC, depending on the model. With the highest test voltage 500 V AC, TRT500 provides the most accurate turns ratio testing of power transformers used in power generation and transmission. The output test voltage of TRT500 can be boosted to 5 kV AC using the external CVT20 extension transformer. This application is specially designed for testing turns ratio of capacitive voltage transformers. The other three models, TRT400, TRT250, and TRT100 can output up to 400 V, 250 V, and 170 V respectively. The low test voltage of 1 V AC enables turns ratio verification of current transformers.TRT500 is equipped with a large 10.1” graphical touch screen display. Other models, (TRT400, TRT250, TRT100) have 7” graphical touch screen display. Besides making the interface much more user-friendly compared to older turns ratio testers, it also brings certain options that were previously available only with DV-Win software. The most important are test templates and automatic test mode. Users can simply create test templates, store them in the instrument’s memory, and load when in the field with just a few clicks.This turns ratio test set, as well as all other DV Power turns ratio testers, has a built-in tap changer control unit. It enables remote control of an on-load tap changer (OLTC) directly from the instrument. In order to make the most out of this feature, the instrument can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions, and saving results. This option, especially in combination with test templates, significantly facilitates and shortens the turns ratio testing time. Automatic test mode minimizes human errors, which makes the measurement more reliable.
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Product
P Series Panel Meters
ST-70P
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Standard Electric Works Co., Ltd
● DC up to 15A● AC up to 30A● Hz Meter : Measuring Ranges : 45~55 Hz, 45~65 Hz, 55~65 Hz Rated Voltage : 110V, 220V Accuracy : Class 2.0● Case and Composition: Acrylic resin front. Bakelite case. ABS case. Four studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Product
Earth Ground Meters
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The earth tester determines ground resistance for both specific and ohm resistances. The earth tester is powered by batteries and have a clock timer function (3 minutes), Data-Hold function, a 3 ½ positions LCD display and their dimensions are 163 x 100 x 50 mm. Resistance ranges come from 20, 200 to 2000 ohms. They have a resolution of 10 / 100 mΩ / 1 Ω. The earth tester measure resistance by means of a constant reverse current (approx. 800 Hz, 2 mA). To measure ground voltage a rectifier is used (5 kΩ/V aprox. 40...500 Hz). The earth tester PKT-2630 series have a small format as well as multiple functions.
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Product
5000 AMP DC Rectifier - Air Cooled, P/N 6037C1
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Air Cooled SCR Controlled Power Supply, 50 KW, P/N 6037C1Input: 480 VAC, 60 Amps, 3 PH, 60 HzOutput: 6 to 10 VDC, 5000 Amps maxContactor and overload relay are installed for protectionStart / Stop capabilityEPO capabilityManual voltage control and current limitOutput voltage and current are displayed on the voltmeter and ammeterIndoor enclosure, 68″H x 65″W x 36″DAll input/output connections are inside the enclosuresEstimated weight: 1000 lbs.
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Product
Megohmmeter
1864-9700
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The GenRad 1864 Megohmmeter is the choice for more demanding applications. The test voltage can be set to any value from 10VDC to 109VDC in 1-volt steps and to 1090VDC in 10 volt steps. Thus the GenRad 1864 can be set to any common, or uncommon test voltage for ceramic, mica or paper capacitors, or other devices. The reverse resistance of rectifiers can be readily measured; the low test voltages are especially useful in measuring solid state diodes. An additional range on the 1864 Megohmmeter permits measurements up to 200 T (2 x 1014)
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Product
Transformer Turns Ratio Testers
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Transformer turns ratio testers from TRT series are DV Power instruments mainly designed for the measurement of power transformer turns ratio. Also, they measure transformer excitation current and phase shift. Special tests, such as automatic vector group detection and magnetic balance, can be performed on three-phase transformers and three-phase autotransformers.All models, except TRT03 series, have a built-in true three-phase power source, which is necessary for testing turns ratio of transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.DV Power turns ratio testers can output various test voltages for different applications. From the extremely low test voltage of 1 V AC that enables turns ratio verification of the majority of current transformers, up to the highest test voltage of 500 V AC that provides the most accurate turns ratio testing of power transformers used in power generation and transmission. By using the external booster, test voltage increases up to 5 kV AC in order to successfully test capacitive voltage transformers.All DV Power turns ratio testers have a built-in tap changer control unit. Because of that, it is possible to control the on-load tap changer (OLTC) directly from the device. In order to make the most out of this feature, the instrument and included DV-Win software can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions, and saving results. This option significantly facilitates and shortens the turns ratio testing time.TRT turns ratio testers use the same set of cables as three-phase winding ohmmeter & tap changer analyzers from the TWA series. Consequently, it enables one-time cable setup for performing eight tests:turns ratioexcitation currentphase anglemagnetic balancevector group detectionwinding resistanceon-load tap changer DVtestand demagnetization.
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Product
Thyristors (SCR)
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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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Product
F Series Panel Meter
ST-123U
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Standard Electric Works Co., Ltd
● Hz Meter : Measuring Ranges : 45~56 Hz, 45~55 Hz, 55~65 Hz Rated Voltage : 110V, 220V Accuracy : Class 2.0 Consumption : Max. 15mA Test Voltage : 2kV. 50-60 Hz● Case and Composition: Polycarbonate front and Polybutylene Terephthalate(PBT). Three studs mounting.● Accuracy : AC class 2.5 DC class 2.0 Rectifier class 2.0● Color：Black case and white scale plate.● Pointer：Sword type color in black.
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Product
Electronic Ballast Automatic Test Equipment
ATE-1
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Test series connection, parallel connection and series/parallel connections of the electronic ballast (about 15 kinds of connections), available for various electronic ballast. • With a precise resistance box, tube is substituted for the resistance, can act as many as 6 tubes. Resistance value: 1-4095Ω adjustable. • Measure input parameters (vrms, irms, w, pf, harmonics, etc), output parameters (on-circuit voltage, lamp voltage, filament voltage, lamp current, lamp power, oscillatory frequency), can also test the ballast efficiency, abnormity protection, and power symmetry of partial rectifier effect and etc. • Program controlled AC power source to guarantee the smart choice of input voltage and the frequency. • Equipped with 17 inch LCD controlled machine, specially designed A/D combined with special CPU, has the two left and right testing interfaces to achieve stability of data and high- speed testing. • We can make the special-designed product for you and promise to upgrade the software for free.
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Product
AC Ammeters And Voltmeters With A MuP Type Rectifier
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*AC Ammeters and voltmeters with rectifier type MuP 40,80,210,220,230*Handle deflection 85 ° type MuP40, MP 80*Handle deflection of 100 ° type MuP210, MuP 220 / 220T, MuP 230 / 230T*The technical data catalog can be found on the download tab below the product.
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Product
Voltage Rectifier
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A voltage rectifier, designed and manufactured by Monex GeoScope Pty. Ltd., has been added to the terraTEM suite of products. The voltage rectifier has been designed to provide 6 kW, 120 V, 50 A output and is the ideal rectifier to guarantee the necessary stable, ripple free current for the full range of Monex GeoScope’s transmitters. This includes the internal transmitters for the terraTEM24 (50 A, 120V), terraTEM (15 A, 24 V) and the terraTX-50 external transmitter (50 A, 250 V). In addition, the voltage rectifier outputs a clean, filtered 24 V suitable for powering either the terraTEM24 console or terraTX-50 console electronics. And the output stability of the voltage rectifier is not disturbed by the fast turn-off times available on the Monex GeoScope transmitters.
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Product
Industrial Standby Battery Monitoring Systems
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Batteries are the power storage medium for all Power Rectifier and UPS Systems. Modern Rectifiers and UPS control systems generally supply the user with only a summary of the condition of the associated power systems, however Battery Monitoring systems specifically measure, record and analyse the individual cell and battery module parameters in detail.
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Product
Roughness Tester
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Compatible with four standards of site to measure surface roughness ofvarious machinery-processed parts, calculate corresponding and clearly display allmeasurement parameters. When measuring the roughness of a surface, the sensor is placed on the surface and then uniformly slides along the surface by driving the mechanism by the sharp built-in probe. This roughness causes displacement of the probe which results in change of inductive amount of induction coils so as to generate analogue signal, which is in proportion to the surface roughness at output end of phase-sensitive rectifier.
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Product
Signal Acquisition and Filtering Technology
SNAPTrack®
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Built on a proven design, and with Pathfinder SAF Technology™ at its core, the SnapTRACK® offers RYCOM’s most advanced signal acquisition and filtering technology. The SnapTRACK® cable & pipe locator offers utility locators FrequencyFlex™ allowing users to adapt the system to their specific needs. Multiple active frequencies allow the user to accurately locate with a minimum of interference while maintaining the ability continue locating past faults and around conduit bends. Passive frequencies identify "live" and charged lines by their naturally occurring electromagnetic fields. The SnapTRACK® offers multiple passive frequencies -- 50Hz, 60Hz, Radio Frequency, Cathodic Protection Rectifier & CATV -- allowing line locating without the use of a transmitter.
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Product
Rectifier Assemblies for Crane Applications
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CEHCO manufactures Transformer Rectifier Assemblies for Crane Applications. We offer standard products and customized solutions.
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Product
HIGH VOLTAGE SCR CONTROLLED POWER SUPPLY
xPS Series
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High Voltage SCR Controlled Power Supply, P/N 18278PSPower Rating: 350 KW.Input: 480 VAC, 3 PH, 60 HzOutput: 0 to 5000 VDC, 70 Amps maxRipple: 2 % approximately at maximum rated voltageConfiguration: 12 pulse externally SCR controlled rectifier systemProtection Devices:Input contactorsOverload relay shutoffInput surge suppressorThermal switchesOutput current limiting resistor (made with 5 Ohm Kanthal heating element)Emergency power shutoffCooling: Each 6 pulse rectifier assembly is cooled by three 10” fansInterface: 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 configurationRectifiers: 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)
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Product
P Series Panel Meters
ST-80
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Standard Electric Works Co., Ltd
● DC up to 50A● AC up to 50A● Hz Meter : Measuring Ranges : 45~55 Hz, 45~65 Hz, 55~65 Hz Rated Voltage : 110V, 220V Accuracy : Class 2.0● Case and Composition: Acrylic resin front. Bakelite case. Four studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Product
High Voltage EMC Surge Generator
TM510
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TM510 Surge Generator is mainly used for testing power cable high-resistance and arc-over fault whose grade range is 0-10kV, co-operating with cable fault tester and locating devices to test and locate faults. If the user choose the professional digital milli-ampere-meter, as for cable with grade range about 0- 6kV, the instrument can also be used to do DC&voltage resistance test and current leakage test after the fault is repaired. The instrument is internally equipped with voltage-rise rectifying and discharging device, has complete functions, and is also convenient and safe to be wired and operated.
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Product
Schottky Mixer and Detector Diodes
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Macom Technology Solutions Holdings Inc.
Schottky diodes are majority carrier diodes formed by plating a layer of metal on a layer of doped semiconductor, which forms a rectifying junction. The type of metal and the type of dopant in the semiconductor determines the diode’s barrier height, which is a measure of the amount of energy required to force the diode into forward conduction. MACOM produces Si Schottky diodes as well as GaAs Schottky diodes for use as signal detectors or in frequency mixers.
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Product
P Series Panel Meters
ST-38
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Standard Electric Works Co., Ltd
● DC up to 15A● Case and Composition: Acrylic resin front. ABS case. Four studs mounting. Two studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Product
IGBT Power Supplies - Air Cooled
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CEHCO The MSA1000 Rectifiers are based on IGBT 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
Independent Operation AC Generator Excitation Regulator
SVRi
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Kinetics Control Systems SVRI Exciter/Regulator rectifier is designed and rated in capacity for the application of exciting the DC fields of an AC generator operating independently with other generators and/or NOT tied into a utility power grid.
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Product
S Series Panel Meter
ST-645
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Standard Electric Works Co., Ltd
● DC up to 10A● Case and Composition: Acrylic resin front and Bakelite case. Four studs mounting.● Accuracy : Moving coil type：Class 2.0 Moving lron type：Class 2.5 Rectifier : Class 2.0● Color：Black case. yellow scale plate.● Pointer：Tube or knife-type, color in black or red.
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Product
SCR Rectifiers
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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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Product
Selenium Rectifiers
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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.CEHCO is a leader in supplying selenium rectifier stacks. We are selenium rectifier replacement specialist. In fact, the company can assemble and deliver any selenium rectifier in 48 hours or less. And the stacks contain extremely high-quality, high-density, vacuum-processed cells to ensure uniformity, stability, and long life.
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Product
S Series Panel Meter
ST-670
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Standard Electric Works Co., Ltd
● DC up to 50A● AC up to 30A● Hz Meter : Measuring Ranges : 45~55 Hz, 45~65 Hz, 55~65 Hz Rated Voltage : 110V, 220V Accuracy : Class 2.0● Case and Composition: Acrylic resin front and Bakelite case. Four studs mounting.● Accuracy : Moving coil type：Class 2.0 Moving lron type：Class 2.5 Rectifier : Class 2.0● Color：Black case. white scale plate..● Pointer：Tube or knife-type, color in black or red.
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Product
Quasi Square Wave Constant Voltage Transformers
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Osborne Quasi Square Wave Constant Voltage Transformers are used to regulate output voltages for applications that have varying input voltages. When used with a rectifier conversion circuit, these units provide an elegant design approach to voltage regulation. Osborne achieves this innovative approach by partnering the constant voltage transformer with an auxiliary resonant capacitor winding. The result is a unique (though time honored) technology that offers reliability, performance, and cost advantages over other styles of voltage regulation.
