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3 Phase
three voltage waveforms at 120°,1/3 of a cycle offset in time.
See Also: Phase Rotation, Phase
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Power Capacitor
POLB HD 7%
Lifasa - International Capacitors, SA
They are self-regenerating condensers with low loss polypropylene dielectric, filled with N2 inert gas mainly, or with resin, and with overpressure disconnection system, which offers a high level of safety against defects, when cutting the 3 phases in case of action.
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Signal Generator
8001
4 digit BCD, 1 latch control line, 25 pin female, D type connector. Range: 2 to 8 GHz (1.7 - 9.0 GHz, typical). 3 normal switching mode, SSB phase noise will be degraded in the fast switching mode
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Surge with 3 Phase Transfer Switch Consoles
TC Model
(Surge with 3 Phase Transfer Switch Consoles) Although all PJ Surge Testers are capable of testing 3 Phase Motors, this "TC" Model has the same characteristics as the "C" Model, but includes a Built-in 3 Phase Test Selector Switch that facilitates 3 phase motor testing by mechanically re-positioning the ground terminal.
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Microphone Preamplifier
426E01
Nominal Microphone Diameter: 1/2 Gain -0.05 dBFrequency Response (0.1 dB) (re 1 kHz)6.3 to 125000 HzFrequency Response (-3 dB) (re1 kHz) Phase Linearity (<1 )32 to 20000 Electrical Noise (A-weight)<2.8 V<2.8 V[1] Output Slew Rate 2 V/S[2]
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Phase Sequence Indicator
Cambridge Instruments & Engineering Co.
Phase sequence indicator is a must for checking new electrical connections, installation and maintenance. It is useful in wiring of switchboards, when 3 phase watt meters and power factor meters are connected. In wiring 3 phase AC motors rotation can be checked and corrected if need be, by checking the sequence.
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Single Phase Universal Protection Relay Test Set
S100A
S100A is the Universal Single Phase Protection Relay Test Set with 1*100A and 3*150V output, local control system for basic relay testing with manual operation.
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Phase Indicators
Kyoritsu Electrical Instruments Works, Ltd.
New technology permits safe testing, without the need of direct contact between probes and live wires. The insulated crocodile clips can clip insulated cables from 2.4 to 30mm. Phase rotation is indicated by the rotary illumination of LEDs and logical audible tones. The instrument can be fixed to a metal panel via the magnet on the back side. Wide measuring range for 3 phase installations from 70V to 1000V AC. Super brightness function permits clear LED''''s indication also in sunshine. Complies with IEC 61010-1 CAT IV 600V and CAT III 1000V.
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Analogue ELCB Tester
810 EL
Standard Electric Works Co., Ltd
● Wiring check.● Can be used on 2 wires L-E (ELCB/RCCB/GFCI tester).● Can be used on 3 wires L-E-N (with wiring check).● Sense automatically 50 or 60 Hz.● No battery required.● Simple operation.● Current injected in phase with the voltage.● Fused.● Wide operating voltage (195Vac to 265Vac).● Other voltage optional (110V).● Robust.
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Three Phase Multi-Tariff Meter
Bofa Instrument & Equipment Co., Ltd
DTSF999 three phase multi tariff energy meter with LCD display has RS-485 port and infrared communication port as well as manual programming buttons, it can display 4 tariff and 3 month maximum demand and phase absence records. The manual programming buttons is used for setting tariff periods and adjusting time when RS485 communication device or infrared communication equipment is unavailable.
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Phase Squence Tester
Measurement Range3 phase check for AC 90V ~ AC 600V (Sine Wave) Operation Frequency45Hz ~ 70Hz Test Time LimitationAC 110V(continuous)AC 220V(3 hours)AC 480V(12 minutes)AC 600V(3 minutes) Power Supplyno battery required Color change LED phase direction indication
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3 Phase Relay Test Set
This is a portable Relay Testing Set suitable for testing different types like over current, earth leakage relays, circuit breakers of 1A – 50A rating etc. All the components are assembled and enclosed with a portable air cooled M.S.cabinet.
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Phase Sequence Indicators (Contact Type)
865 PR
Standard Electric Works Co., Ltd
● The 865 PR is a detector with LEDs to show the de- tection better visible than neon. ● Three functions in one unit, including open phase, phase sequence and 3 phase motor rotation.● Designed for checking a wider range of 3 phase power source from 100V to 600V.● Indicates R.S.T LEDs which frequency range from 40Hz to 400Hz.● Wide range detection of motor frequency range from 2Hz to 400Hz.● Fixed magnets for convenient measurement.
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3 Phase Voltage Transducer
Converts a three phase, 600 VAC, 50/60 Hz power system to three proportional 0 to 5 volt DC outputs.
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Flexible Cable Set, 3.5 Mm (Test Port) To 7 Mm
85132F
The Keysight 85132F is a 62.9 cm (24.75 in) long¹ flexible cable set composed of two 3.5 mm female² to 7 mm connectors. Cable frequency range is dc to 18 GHz with a return loss greater than or equal to 17 dB. Insertion loss is 0.25 * sqrt(f) + 0.2, where f is frequency in GHz, for the test port connector and device connector. Phase stability of semi-rigid/flexible cables is specified with a 90 degree bend using a 4 to 3 inch radius. Stability¹ of the Keysight 85132F is less than 0.12 dB and phase is 0.13 * f + 0.5, where f is frequency in GHz.
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RF and Microwave Circuits Design
1. Design and implementation of RF front end receiver module. 2. Design and implementation of RF front end transmitter module. 3. Design and implementation of voltage controlled oscillator and phase lock loop. 4. Design and implementation of IF demodulator and audio process circuit. 5. Design and implementation of wireless transceiver module.
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Near Field Probes 1GHz - 10 GHz
SX set
The SX1 set consists of 3 passive near field probes for making measurements in the development phase of E-field and magnetic field with a high clock frequency in the range from 1 GHz to 10 GHz. The probe heads of the set SX allow for measurements close to electronic assemblies, e.g. on single IC pins, conducting paths, components and their connectors, to localize interference sources. Field orientation and field distribution on an electronic assembly can be detected through trained use of the near field probe. The near field probes are small and handy. They have a sheath current attenuation and are electrically shielded. They can be connected to a spectrum analyzer or an oscilloscope with a 50 Ω input. They have an internal terminating resistance.
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Circuit Breaker Testing
Weshine Electric Manufacturing Co., Ltd
Time measurement: 12 fracture intrinsic points, closing time, with the same period, phase with the same period.2. Reclosing measurement: each fracture closing - minute, minute - closing, minute - closing - minute process time, one minute time,one closing time, two closing time, gold short time, no current value.3. Bounce measurement: closing bounce time, bounce times, bounce waveform of each fracture, rebound amplitude of each fracture.
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Turns Ratio Testing
The transformer turns ratio test, or TTR test, confirms that the transformer has the correct ratio of primary turns to secondary turns. Using this test correctly can help to identify tap changer performance, shorted turns, open windings, incorrect winding connections and other faults inside transformers. Megger’s range of TTR testers are robust to withstand the harsh conditions that some transformer testing in. The range includes varying features to simplify and speed up testing as well as 3 phase TTR testers and PT and CT TTR testers.
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Environmental Chamber
REXMED REC-200
MOD. REC-200, AC 230/380/415V, 1/3 phase, Environmental chamber, HS CODE: 841989, UNCCS CODE: 484384, UMDNS CODE: 16327, Main construction: SS304, Interior: SS304, Exterior: SS304 powder coated, Insulation: Rigid polyurethane foam and glass wool, Controller: Fix point PID controller, temperature ˚C/PV and ˚C/SV, humidity %/PV and %/SV display and setting, Temperature range: -20˚C~100˚C, Humidity range: 20%RH~98%RH, Constancy: ±0.3˚C ±2.5%RH, Uniformity: ±1˚C ±3%RH, Temperature and humidity sensor: PT 100Ω, Temperature and humidity audio and visual warning and OFFS correction setting, Temperature heater: 1.5KW X 2pcs, Humidity heater: 2.5KW X 1pc, Heat up transition time: -20˚C~100˚C within 35 min, Refrigeration system: Air cooled, single stage, Cooling compressor: Bristol hermetic compressor, Cooling capacity: 1,892 Watts, 6,455 BTU/hr, 1,630 Kcal/hr, Cool down transition time: 20˚C~-20˚C within 45 min, Safety devices: No fuse breaker, refrigerator over load relay, refrigeration high pressure switch, over temperature protector, protection relay, protection fuse, water level control and overheat protector, Chamber: L50 X W60 X H75cm, Capacity: 225L, chamber with key lock, with lamp (DC 12V 50W) X 1pcs and double glass viewing window, testing cable port with cover: Ø25mm, 4 castors, W/S: shelf X 2pcs, standard testing wet cloth X 5pcs, PCV water container X 1pc
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150KW AC/DC Rectifier Battery Charger
SD750250G
Zhejiang Sandi Electric Co., Ltd
AC-DC Power Rectifier Battery Charger Customized for Lead Acid AGM Gel LiFePO4 Lithium Battery is for DC battery system charging station. With single-phase or 3 phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic. 50-750Vdc output voltage range optional, suitable for all types of batteries.
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LV Iron Core Motor Starting Reactors
Motor starting reactors are used to reduce voltage during starting of large 3 phase motors while limiting inrush currents.
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AC Power Sources
400XAC Series
Our 400XAC Series AC Power Sources provides both 1Ø and 3Ø AC or DC power in a single box solution. If you need an AC Power Source with superior application flexibility, look no further than the EEC 400XAC. Ideal for both production and laboratory use, this 3 phase AC Power Source provides a unique feature set at a competitive price point. Our exclusive SmartCONFIG feature allows the 400XAC Series to switch from 1 phase to 3 phase power with the push of a button. This flexibility maximizes your investment while providing you the AC and DC power that your application needs. The 400XAC Series AC Power Source includes the following models: 430XAC and 460XAC.
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HV Voltage Dividers
*DC up to 10MHz*1kV to 1,200kV DC or PK AC*To 1,875kV Impulse*To ±0.01% DC Accuracy Accredited*To ±0.2% AC Accuracy (50/60Hz) Accredited*To ±3% DC-1MHz Wideband*±3dB 5 to 30 MHz*Compact & Lightweight*For Oscilloscopes*For Recorder*For Digital Multimeters*Very Partial Discharge/Low Corona*Very Low Phase Shift*Resistive*Capacitance*Compensated Wideband*Indoor & Outdoor*Electronic and Power Class*Match Wideband Differential*High Voltage Power Quality Instrumentation
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Near Field Probes 30 MHz up to 3 GHz
RF2 set
The RF2 near field probe set consists of 4 passive near field probes for measurements in the development phase of the magnetic field in the range from 30 MHz to 3 GHz on electronic assemblies. The probe heads of the RF2 set allow the step by step localization of interference sources of the RF magnetic field on assemblies. From greater distances the electromagnetic interference can be detected by RF-R 400-1 and RF-R 50-1 probes. The RF-B 3-2 and RF-U 5-2 probes with their higher resolution can more precisely detect the interference sources. Field orientation and field distribution on an electronic assembly can be detected through a trained special use of the near field probe. The near field probes are small and handy. They have a sheath current attenuation and are electrically shielded. They can be connected to a spectrum analyzer or an oscilloscope with a 50 Ω input. They do not have an internal terminating resistance.
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AC to DC Unregulated Power Supply
CEHCO is a specialist in AC to DC Unregulated Power Supply. We can offer the followings:Input power can be single phase (1 PH) or three phase (3 PH)DC output voltage up to 1000 VDC maxDC output current up to 1500 Amps max
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Computer Control 6-Phase Relay Protection Tester
GDJB-PC6
Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd
1.This tester with standard 6 phase voltage, 6 phase current output,2.Voltage 125V/phase, current 30A/phase, 6 phases in parallel can up to 180A.3.Digital Signal Processor Microcomputer.4.Not only test the traditional relays and protectors, but also test the modern micro computer replays, special for transformer differential protection and transfer equipments.
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Branch Circuit Monitor
Multiple branches of load can be monitored togetherCan group the device as 3 phase load and single phase loadFaster communication through RS485 port (Modbus protocol)Simultaneous sampling of Volts and AmpsAccuracy Class 1.0 as per IEC 62053-21 & Class 0.5 as per IEC 62053-22 StandardsDisplays more than 25 parameters
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3 Phase Power Analyzer
Model LCD780
3 Phase Power Analyzer LCD780 is multi-range power Analyzer with basic 0.07% R+R accuracy. 8 range of voltage, 8 range of current and total 64 range of power and power factor gives more accurate result. Harmonics Measurement Up to 31th order. USB Connectivity + Free Software. Refresh rate : 250ms / 500ms / 1000msThe gap less four-quadrant power measurement technique gives better accuracy at distorted waveforms or AC drive (VFD) operated power supply.
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Waveguide Gunn Oscillators
2 Models with Popular K and Ka Band Center frequencies of 24.125 GHz and 35 GHz. Designs feature mechanical tuning capabilty ranging up to + 3 GHz. Excellent Phase Noise Performance as low as -98 dBc/Hz typical. +10 dBm Output Power with Frequency Stability as low as -0.2 MHz/°C. Models have an Operational Temperature Range of -40°C to +85°C. Compact Aluminum Packages have Precision Machined Cavities that exhibit Optimum Performance. Fully Integrated Mil Grade WR-28 and WR-42 Waveguide Ports.
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Phase Sequence Meters
Phase sequence meter is used for detecting the sequence of the supply in three-phase electric circuits. Since the direction of rotation of three phase electric motors can be changed by changing the phase sequence of supply. And also the correct operation of measuring instruments like 3 phase energy meter and automatic control of devices also depend on the phase sequence. Different types of phase sequence testers are available in today’s market like contact or non contact, static or rotating, etc., in a wide range of voltage or power ratings.