Phase Locked Loops
See Also: PLL
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Product
Single Phase Din Rail Multi-Tariff Energy Meter Type DDS999D
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Bofa Instrument & Equipment Co., Ltd
Single phase Din rail multi-tariff energy meter type DDSF999D is a new type of single phase electronic multi-rate energy meter, which accords international standard IEC61036. It features: good reliability, small volume, light weight, convenient installation, etc.
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Product
Single Phase Portable Energy Meter Test Bench Type KP-P1003-C
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Bofa Instrument & Equipment Co., Ltd
Single-phase portable test bench, Type KP-P1003-C, is an ideal device to test all kind single-phase energy meters accuracy below 1.0. The equipment can generate single-phase voltage, current and all power factor. The equipment is box structure, light, and easy to carry, it is a very ideal device for energy meter factory to adjust meter at production line, it also can be used as testing equipment in R&D institute.
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Product
Knopp Phase Sequence Indicator
K-3, K-6, and K-7
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Use of the Knopp K-3 Phase Sequence Indicator saves man-hours and protects valuable equipment against damage. It pays for itself in a short time. Specially designed induction motor unmistakably indicates the phase sequence by direction of rotation or rotor disc.
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Product
Phase Monitoring / Potential Selector Relay
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This is a phase failure relay suitable for 3 phase supplies. The relay is designed to automatically change over from the primary supply to the secondary supply if any phase of the primary supply has faulted.
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Product
Active Dual Loop Antenna
KH30936
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Beijing KeHuan Century EMC Technology Co,.LTD
KH30936 active dual loop antenna is used for adjusting, testing, measuring and other receivers. It has many advantages:1. The antenna coverage frequency is wide: 150KHz ~ 30MHz .2. The field strength value is measured according to the correction coefficient within the effective frequency range, which is convenient to use.3. The antenna power is supplied by the host, which is convenient for outdoor measurement.4. Compared with the single loop antenna, the advantage is to read the maximum value directly, which eliminates the tedious steps of rotating the antenna to find the maximum value and the interference of the human body to the signal.
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Product
Loop Resistance Measuring Device According to DIN EN 61557-3 (VDE 0413-3)
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PeakTech Prüf- und Messtechnik GmbH
A loop tester which is used to test the safety of electrical systems. These device measures the impedance of the short-circuit loop between the outer conductors of a circuit, whereby the probable short-circuit current is calculated. The protection of the circuit (miniature circuit breaker) must therefore trigger at a lower current than the expected short-circuit current, in order to avoid excessive heating of the lines and thus a fire risk. The PeakTech 2715 is due to its function and its robust design almost indispensable when performing new installations, but also for general checking of electrical systems, this device is the ideal companion.
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Product
Three Phase Portable Energy Meter Calibration Equipment
GF302D1
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Beijing GFUVE Electronics Co.,Ltd.
The GF302D1 three phase portable energy meter test system consists of an integrated three phase current and voltage source(up to 500V/120A or 500V/20A) and built-in three-phase electronic reference standard of accuracy class 0.05%. Characteristic features of the GF302D1 are its wide measuring range, high accuracy and high tolerance to unwanted external influences. The equipment offers high functionality combined with an excellent menu guided operation via built-in keyboards and colored 7" touch LCD-display.
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Product
Three Phase Transformer Ratio Meter
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*Three phase lead switching network. *Excitation current meter Accessories: Range Extender 1:5
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Product
Three Phase Secondary Current Injection Test Set
TEST-330B
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Beijing GFUVE Electronics Co.,Ltd.
Three phase secondary current injection test set is testing relay set, protective device, instruments, output ac dc current and voltage source, embedded Window XP system.
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Product
Regenerative AC Emulator, 600 VAC, 125 A, 90 KVA, 3‑Phase
SL1203A
AC Emulator
The SL1200A series was designed to handle all your 3-phase AC test needs up to 1200 VAC, from 30 kVA to 630 kVA without the need for a transformer. Two voltage ranges are available: 600 VAC and 1200 VAC. The 600 VAC models are ideal for low voltage inverter test as well as EV and EVSE charging test applications. The 1200 VAC models allow for (HVRT) testing at the IEC LV-AC limit without the need for a large, complex test setup.
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Product
Single Phase Converter
Series Sirio AC / ACS
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The SIRIO single-phase equaliser is an electronic device that offers the ability to regulate the rms value of a sinusoidal voltage through the control of two diodes connected in antiparallel.
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Product
Loop Tack Tester
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Loop Tack Tester is applicable to measure the tack property of adhesive tapes, pressure-sensitive adhesives (PSA), and adhesive materials according to ASTM D6195.
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Product
Phase Sequence and Motor Rotation Tester
PRM-6
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The PRM-6 Motor and Phase Rotation Tester can test the motor rotation of 3-phase systems, and verify 3-phase receptacle wiring and phase sequencing with test leads.
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Product
Phase Noise Measurement Up To 70 GHz
S930317B
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S930317B enables phase noise measurements using a PNA or PNA-X vector network analyzer. Simplify your measurement workflow by measuring phase noise on the same connection as your network analysis measurement of 2-port active devices up to 70 GHz, without needing to connect a spectrum analyzer or harmonic mixer.
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Product
Multi-Standard Local Loop Simulatorw/Optional AWGN Generator
458-LM-A1-30
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FEATURES: Simulates 26 AWG PIC as specified in ANSI T1.417; Bandwidth DC to 30 MHz; Solution for ADSL, ADSL2, ADSL2+, & VDSL2 chip/modem/DSLAM testing;
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Product
Single Phase Din-rail kWh Meter
SY 1018
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Hong Kong Songyang Industrial Ltd.
Type SY1018 single phase DIN watt-hour meter is a kind of new style single phase electronic watt-hour meter, the meter completely accord with relevant technical requirements of class 1 and class 2 single phase energy meter stipulated in National standard GB/T17215-2002 and international standard IEC61036
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Product
Single Phase Energy Meter Type DDS999
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Bofa Instrument & Equipment Co., Ltd
DDS999 series Single Phase energy Meter are new and high-tech products adopting special large-scale IC, latest micro-electronic technology and SMT production crafts. It is designed for rough working condition and components selection as foundation, so it can ensure the long-term stable operation.
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Product
PXI Analog Output / Current Loop Simulators
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These modules are aimed at simulating industrial control transceivers, utilizing 4–20mA current loops. The modules include built-in relays for shorts and opens functionality enabling fault insertion testing on every channel and also enable slew rates to be programmed so that different sensors can be effectively mimicked.
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Product
Phase Sequence Indicators (Contact Type)
865 PR
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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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Product
4 Phase Flexible AC Current Probe
DRM 504/18
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The new DRP 504/18 is a 4 Phase Flexible AC current Probe utilising the Rogowski principle, with 4 channel integrator housed in DIN Rail Mounted Enclosure. The flexible and lightweight measuring head allows quick and easy installation in hard to reach areas and with large conductors.
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Product
Phase Detectors
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High DC output versus phaseLow DC offsetRugged metal coaxial packageTiny surface mount packages, 0.38 x 0.50 x .023 in.
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Product
Phase Rotation Meter
PCE-PI 1
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The digital phase rotation meter PCE-PI 10 is used to determine the direction of rotation of 3-phase voltage networks. Furthermore, the phase rotation meter is able to measure voltages up to 600V AC / DC. The rotating field direction is important for machines and plants.
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Product
Three Phase Meter Test Bench
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Supreme Instrument Laboratories
Three phase meter test bench suitable for calibration & testing of AC Ammeters, Voltmeters, Single phase Energy Meters, Watt Meters, Power Factor Meters, Three Phase Two Wire & Three Phase Four Wire Energy Meters Trivector Meters, Maximum demand indicators, of active & reactive systems, Three phase 3 wire & 4 wire watt meters, Var Meters, Power Factor Meters etc.
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Product
Three Phase Power Sources
PS3
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The PS3 three phase power source was designed to provide a stable alternating current and voltage source for three phase electricity meter test equipment.
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Product
Phase Sequence Indicator
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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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Product
Digital Controlled Phase Shifters To 4 GHz
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Pulsar's Digital Controlled Phase shifters utilize PIN diodes and delay lines to produce the necessary phase requirements. These digital phase shifters use switched lines to obtain temperature stable phase shift. The phase is specified at the center frequency ± 3.0% and is proportional to frequency over the entire band.
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Product
Three Phase Protector
KPB1
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Konstar Electric Industrial Co., Ltd
If have one pase voltage is too high or two low or pahse lose or wrong phase sequence, the protector will cut off the power, and the new power supply, it will have 5s-300s to restart the equipment in order to protect them.Suitable for the engineer, and equipment and three phase equipment.
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Product
3 Phase Relay Test Set
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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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Product
28 Days Test Bench (Single Phase & Three Phase)
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The SCR Elektroniks 3 station MCB 28 Days and Temperature Rise Test Bench is economically designed to verify the 28 Days Test (21 hr ON, 3 hr OFF Test) as per clause 9.9 of IEC 60898-1 and Temperature Rise of the parts of a Circuit Breaker specified in Table 6 of clause 8.4.1 measured under the conditions specified in clause 9.8.2 of IEC 60898-1.
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Product
Phase Frequency Detectors
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Analog Devices phase frequency detectors offer high performance and ultralow phase noise in a low cost, compact package. Our devices can significantly improve frequency lock time, and include automatic and configurable lock detect indicators.





























