Characteristics of protection 1Phase loss protection: It means that any phase occurs phase loss when the protected circuit is in running or stopping status. In this case, the red indicator light will be lighted and be priority. 2Phase opposite protection: It is a safeguard acting immediately, which protects L1, L2, and L3 three phase against wrong connection sequence. In this case, the yellow indicator light will be lighted. 3.Voltage imbalance protection: While a protection of voltage imbalance rate > 8%, the imbalance of three phase voltage will affect the safe running of the equipment. In this case that there is a phase losing, the red indicator light will be lighted and be priority. 4.Delay protectionWhen the fault happens, the monitor will delay 1~2 seconds to act and release. Characteristics of performance 1.The protection functions of relay dont be affected by current intensity of circuit or load, impulse current, imbalance current and load characteristic. The relay could long term work under full capability and full climate. Power consumption is lower than 2W. 2There is no requirement for connecting method when it is used in protection of motor. 3This product measures up GB/T 14048.1-2000ã?�GB14048.5-2001 eqv IEC60947-1:1999. 4The EMC of the product measures up the limits and methods of measurement of radio disturbance characteristics of GB4343-1995.
Supplier: Air compressors, automation equipment, bearings, cables, diesel engines and generators & machinery spare parts, filters, electrical equipment's, electric motors and gear motors, panel boards and & much more.
Services: Logistics, customer clearance and much more.
Buyer: Air compressors, automation equipment, bearings, cables, diesel engines and generators & machinery spare parts, filters, electrical equipment's, electric motors and gear motors, panel boards and & much more.
Supplier: Marble, granite, stones, slates, tiles, power cord, wires, cables , cable assemblies, tyre scrap, used tyres, steel tire wire scrap, firewoods, pistachios, hazelnuts, textiles
Buyer: Pellets, briquettes, firewood, textiles
Hard and tough quality Unbreakable
Supplier: Plastics jars & containers, plastics caps & closer, cosmetic products plastics packaging materials, food containers, personal care products plastics packaging items, all size plastics pots for plants, plastics household products, health care products plastic packaging items, plastics toys for kids, plastics molded indoor & outdoor sports items, usb cable c to c and a to c, power cord, wire harness, battery cable, ec charger connector with cable.
Buyer: 3 core pvc wire, 4 core usb wire, silicon flexible wire.
Supplier: Gas lighter, led screen protector ( not even in domestic ), refill paper cups, table runner, earing brass clamp, auto brass electric parts, cashew nuts, wire mesh, petha sweet, niwar, mohini powder, vermicompost, dry bath incubator, test tube plastic, sordium citrate tube, health care product, ornamental freshwater fish, safed musli, used polymer bag, cotton linter, auto hood cover, areca plate, rice
Overview The three-phase microcomputer relay control tester has a 4-phase voltage 3 phase current output, which is suitable for various types of relay protection devices. The microcomputer relay control tester uses a high-speed high-performance digital signal processor comparative speed, transmission frequency bandwidth, and software application bifurcation algorithm produces each of the respective high-precision waveforms. Due to the integrated structure, each part is closely coupled, the data transmission distance is short, and the structure is compact. Technical parameter: AC current output Output accuracy Level 0.5 Phase current output (effective value) 0 40A Three merge current output (effective value) 0 120A Phase electric length time allows work value (effective value) 10A Phase current maximum output power 420VA Maximum output power at the maximum output of three 1000VA Working time is allowed when the maximum output of the three mesh is output 10s Frequency range (foundation) 20 1000Hz Harmonic number 1 20 times DC current output Output accuracy Level 0.5 Current output 0 10A / each phase, 0 20A / two superimposed Maximum output load voltage 20V AC voltage output Output accuracy Level 0.5 Phase voltage output (effective value) 0120V Line voltage output (effective value) 0210V Maximum voltage output value 0240V Phase voltage / line voltage output power 80VA /100VA Frequency range (fundamental) 201000Hz Harmonics 1 20 times
Supplier: Japanese quality switchgear components, breakers, magnetic contactors, switches, pilot lights, pushbuttons, panel instrumentations, power management meter, protection relays, transformers, inverters, ups.
Features High performance Embedded-Industrial-Computer. 8.4¡ high-resolution large LCD screen. Display all kinds of test data, operating states, and prompts and help messages. Windows operating system, Slim industrial Keyboard and optical Mouse, and many Hotkeys, most convenient to operate. Perform all test items without any external device, automatically display and record test data, and automatically plot vector diagrams and characteristic curves, and print reports. Provide many automatic test procedures. GPS synchronously trigger, synchronization error less than 50|¨¬S. USB port to transmit data and maintenance operating software. High performance D/A converter, assure high waveform accuracy and excellent linearity, transient response and frequency-amplitude characteristic. Particular waveform generation algorithm, assure pure sine wave. Hi-Fi power amplifier, create high output power and low ripple. Except of traditional Ua, Ub, Uc, Ia, Ib, Ic, the fourth voltage Ux can be applied to many functions, such as 3Uo and synchronous voltage, etc. Eight switch input and Four pairs of idle contact output. Switch input ports are compatible with idle contact and active contact, and capable to identify the polarity of active contact, and work well during ¡¨¤250V. Self-diagnosis and multi-protection, reasonable heat dissipation structure, ensure safety and reliability. Well-designed, high-strength aluminium alloy case with carrying handle, facilitate moving to test on site.
