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230V / 36 Amp Load
EL08-230M
For High Voltage UPS Battery Testing and Power Supply testing. This particular Load has been designed to operate with UPS Battery Systems and Telecom Rectifiers and Power Supplies with output Voltages in the range of 153V to 230V and is extremely cost effective.
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F Series Panel Meter
ST-120
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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Bridge Rectifier Assemblies
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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F Series Panel Meter
ST-70U (Four studs mounting)
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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Quasi Square Wave Constant Voltage Transformers
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.
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Turns Ratio Testers
TRT Advanced Series
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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Roughness Tester
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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48V / 300 Amp Load
EL18-48M
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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IGBT Power Supplies - Air Cooled
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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Thyristors (SCR)
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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High Voltage EMC Surge Generator
TM510
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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48V / 200 Amp Load
EL12-48M
For Battery Discharge testing 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 costeffective.
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P Series Panel Meters
ST-38N
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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Rectifier Assemblies for Crane Applications
CEHCO manufactures Transformer Rectifier Assemblies for Crane Applications. We offer standard products and customized solutions.
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Battery Charger Meters
A range of ammeters and voltmeters with tough moving magnet or polarised moving iron movements designed for low cost indication of d.c. or rectified a.c.
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M Series Panel Meters
ST-118
Standard Electric Works Co., Ltd
● M Series all up to 15A● Case and Composition：Acrylic resin front and ABS resin case. Four studs mounting.● Accuracy：Moving coil type : Class 2.0 Rectifier type : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Portable System for High-Voltage Solid Dielectrics Testing
HVT-70/50
Portable system HVT-70/50 is designed for carrying out high-voltage withstand testing of cable insulation and other solid dielectrics with DC (rectified) voltage up to 70 kV and AC voltage up to 50 kV RMS at industrial frequency (f = 50 Hz).
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Transformer Turns Ratio Testers
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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48V / 250 Amp Load
EL15-48M
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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AC Hipot Test Set
Weshine Electric Manufacturing Co., Ltd
AC Hipot Test Equipment for Dielectric Withstand Test are suitable for 50 / 60 Hz AC testing of low capacity test objects. Optionally, these units can also be upgraded to function as DC test sets by mounting the rectifier attachment on top of the transformer.Weshine® AC Hipot Test Set for AC hipot test can be equipped with a rectifier attachment for DC voltage testing.Typical application areas:Testing of cables Testing of switchgearTesting of transformersTesting of CP & PTTesting of MV systems
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P Series Panel Meters
ST-45
Standard Electric Works Co., Ltd
● DC up to 30A● AC up to 30A● 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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Cable Test Van
ETL-10M
ETL-10M is a cable test van with three-phase connection designed for testing cable insulation with DC (rectified) voltage up to 60 kV and testing other electrical objects with up to 50 kV AC voltage of industrial frequency.
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4kW Electronic Load
PT04-48
For Telecom Rectifier and Power Supply testing. This model has been developed to accommodate testing of both 48V and 24V telecommunications power systems or Power Supplies. It is also useful as a general-purpose variable Load. Its founding principle is simplicity – ease of use, enhanced reliability, greater value for money and wider applicability.
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Mobil Cable Test and Fault Location System
SWG-12 (SWG-32)
• testing cable insulation with DC (rectified) voltage up to 32 kV;• conditioning faults by burning faulty cable insulation with current up to 100 mA;• pre-locating cable faults with the reflectometer RIF-9 based on the pulse reflection method (TDR), voltage wave oscillation method (DECAY), impulse current envelope (ICE) method and arc reflection method (ARC / ARC multi-shot);• pinpointing cable faults with the acoustic method with up to 2000 J surge wave generator and a suitable signal receiver.
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ARINC 818 Analyser
iWave’s ARINC 818 Video Protocol Analyzer (VPA) instantly verifies the ADVB Packets against ARINC818 Standards. ARINC818 VPA software efficiently captures, decodes the ADVB data, and displays the ADVB data, raw video data, and error status. It is an excellent troubleshooting tool that helps to quickly detect and rectify errors in the ARINC 818-2 applications, simultaneously ensuring compliance of the system with the ARINC 818-2 standards.
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Rectifier/Modular PSUs
The rectifier families are housed in either 19" racks or provided as compact modules. The rack mounting rectifiers are aimed at telecoms applications. This range of robust rectifiers start at 250W and have a life time of more than 8 years and an MTBF of over 50 years. For even greater security these hot swap modules can be configured to provide a redundant DC output. Up to 2 additional AC inputs with automatic switchover are provided on a number of these telecoms rectifiers.
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Selenium Voltage Doubler Rectifier P/N 6063C
Selenium Voltage Doubler Rectifier, P/N 6063CPlate size: 1.6” x 1.6”Each plate is rated for 33 Volts, 9 AmpsNumber of plates: 24
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Load Banks
EL08 Series
*Rectifier Test 8kW*All of our Load Banks are continuously rated for Power and Current.
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Bridge Decking Testing Equipment
The testing process can detect blow holes, inclusions or thin areas in 'sprayed-type' membranes. Because the concrete contains a small amount of water, it is electrically conductive and a DC Pinhole Detector can be used to create a high voltage which is passed over the surface by the use of a brush electrode. An alarm will sound to identify any small defects which can be rectified so that the integrity of the coating can be verified.
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460V / 18 Amp Load
EL08-460M
For High Voltage UPS Battery Testing and Power Supply testing. This particular Load has been designed to operate with UPS Battery Systems and Telecom Rectifiers and Power Supplies with output Voltages in the range of 307V to 460V and is extremely cost effective.
