Please click here to check who's online and chat with them.

Find Verified Computers Electronics Communications Electrical Suppliers, Manufacturers and Wholesalers

Top Supplier Cities : Shenzhen   Guangzhou   Dongguan  
Dec-15-21
Power Saving Devices

Power Saving Devices

(1.1)
$770 - $15.40K
MOQ: Not Specified
  Wuhan GDMK Electric Co., Ltd.
Supplier From Wuhan, Survive, China
Supplier Of Electric Power Supply Components   |   Power Saving Devices   |   Stabilizers   |   Tools & Instruments
 
Overview

Frequency conversion series resonance test device is designed and manufactured for alternating-current withstand voltage test of Possessing a wider application scope, it is the ideal withstand voltage equipment for prefecture-level, municipal-level and county-level high-voltage test departements as well as power installation and repair & testing engineering units.

Frequency Conversion Series Resonance Test Device

Technical index

Rated voltage

Quality factor under full load in test of fire power generator Q 10 relating to load

Quality factor under full load in cable test Q 30 relating to load
Quality factor under full load in test of main transformer: Q 30 relating to load

GIS, the quality factor under full load in switch test and other tests Q 50 relating to load

Input power supply single phase of 380V

Frequency adjustment range 20Hz 300Hz

Accuracy of system measurement 1.5

The unit possesses protective functions, such as over voltage, over current and zero start.



Description for main configuration and technical data of equipment

One set of variable-frequency power supply

Rated power 10kVA;

Input voltage single phrase of 220V or three phase of 380V 10 and 45 65Hz

Output voltage 0 400V adjustable

Output voltage frequency 30 300Hz

0.1Hz adjustable stepping

Instability degree of frequency 0.02

Output current: 0 25A
Nov-07-13
(1.3)
Supplier From Wuhan, Hubei, China

Our products include hang tags, plastic seals, woven labels, printed labels, barcode and price tickets, PVC, silicone labels, leather patches.

Supplier Of Leather Products   |   Electronic Cash Registers & Barcode Scanners   |   Labels, Stickers, Logos
Aug-10-22
Insulated Boots Gloves withstand Voltage

Insulated Boots Gloves Withstand Voltage

(1.1)
$770 - $15.40K
MOQ: Not Specified
  Wuhan GDMK Electric Co., Ltd.
Supplier From Wuhan, Survive, China
Supplier Of Electric Power Supply Components   |   Power Conditioning Equipments   |   Power Regulation & Correction   |   Power Plant Spares   |   Tools & Instruments
 
Product description

Insulating boots and gloves withstand voltage device is a power frequency power supply with low voltage working voltage of 220V/50Hz for insulating boots and gloves. According to the principle of electromagnetic induction, the input voltage is changed to the minimum value required for the test. high pressure. Insulating boots (gloves) withstand voltage test device generally consists of a special dedicated test box, an intelligent power frequency withstand voltage console, and a power frequency withstand voltage test transformer.

A special water tank can be customized according to needs to test 6-8 insulated boots or 6 insulated gloves at a time, and display the leakage current of the insulated boots or insulated gloves at the same time. The intelligent power frequency withstand voltage console is equipped with overcurrent protection and zero protection. Time protection and alarm function. The preventive voltage resistance test device for insulating boots and gloves is a special product developed and produced according to the needs of users according to the test procedures of insulating boots (gloves).

The selection has an automatic boost (buck) function, automatically reads the leakage current of each test product, the whole process is automatically completed, and the test data is automatically printed, which effectively solves the previous non-standard test methods, thereby simplifying .Simplifies the test procedure and improves the test speed. More reliable identification of parameters such as leakage current and power frequency withstand voltage of insulating boots (gloves). To ensure the safety of test personnel, it is an ideal pre-treatment of insulating boots (gloves) to protect power frequency withstand voltage test equipment.



Technical Parameters

Input voltage AC220V 50 Hz

Output voltage 0~30kV

Capacity 3kVA

Test number 3 pairs each time

Quality Gloves (insulating boots) test car: 80kg; power frequency withstand voltage test bench: 70kg

Insulated boots gloves withstand voltage
Mar-22-17
(1.0)
Supplier From Wuhan, Hubei, China

NFC card, RFID card, mifare 1K card, TK4100 card, contactless card, contact card, NFC tags, RFID wristband, RFID keyfobs, RFID inlay, transparent card, matte card, book printing, plastic key tag card, name badge, badge reels, ID badge, lanyards, PVC cards, membership card, gift card, discount card, memory card, metal card, paper card, playing card, poker card, hotel key card, access control card system.

Supplier Of Safety & Security Equipment   |   Electronic Cards, Card Readers   |   Keychains/Lanyards
Oct-29-08
(1.3)
Supplier From Wuhan, China

Telecommunication, optical patch cord, optical coupler, PLC Splitter, WDM/CWDM/DWDM, AWG, Optical passive components and so on for telecommunication, networking, lan system, catv system, gpon system, edfa system, optical testing system, FTTX/FTTC/FTTL.

Supplier Of Telecommunication Infrastructure/Equipments
845 Computers Electronics Communications Electrical Suppliers
Short on time? Let Computers Electronics Communications Electrical sellers contact you.
Jan-13-12
(1.3)
Supplier From Wuhan, China

RF and MW active and passive components up to 40ghz including power amplifiers, low noise amplifiers, power splitters, directional couplers, hybrid couplers, diplexers, triplexer, multiplexer and filters.

Supplier Of Telecommunication Infrastructure/Equipments
Aug-04-17
(1.0)
Supplier From Wuhan, China

Thermal imaging cores, thermal or infrared cameras, thermal security cameras, electro optical sensors, electro optical sensor systems, electro optical surveillance systems, electro optical tracking systems, thermal batteries.Manufacturer

Supplier Of Battery Testers & Chargers   |   Digital Camera/Video Camera

Service Provider Of Manufacturer & Exporter   |   Electric Sensors   |   Surveillance Equipments
Dec-24-21
Transformer Short Circuit Impedance Tester

Transformer Short Circuit Impedance Tester

(1.1)
$770 - $15.40K
MOQ: Not Specified
  Wuhan GDMK Electric Co., Ltd.
Supplier From Wuhan, Survive, China
Supplier Of Electric Components   |   Battery Testers & Chargers   |   Tools & Instruments   |   Electric Testers   |   Electronic Testers
 
Product description

The Transformer short circuit impedance tester comes with an adjustable power output. Regardless of single phase or three phase transformers, only one connection is required, and the instrument can complete the measurement of all winding pairs. The test and connection are simple.



Main technical indicators and conditions of use

Measurement accuracy voltage, current 0.2 level

Power COS 0.1 0.5 grade, COS 0.1 1.0 grade

Impedance COS 0.1 0.5 grade COS 0.1: 1.0 grade

Voltage measurement range AC 3V 300V

Internal power output range voltage 0 250V, current 0 10A

Current measurement range AC 0.2A 20A

Working temperature 10 50

Working humidity 0 80

Working power supply AC220V 10 50Hz 1Hz

Dimensions 360mm 220mm 150mm

Weight of the instrument 20Kg

Transformer Short circuit Impedance Tester
Sep-15-21
(1.1)
Supplier From Wuhan, Hubei, China

Water filter, air purifiers.

Supplier Of Electric Water Purifiers   |   Water Filters, Water Treatment Plants
Apr-02-21
(1.1)
Supplier From Wuhan, China

Coffee, tea vending machine.

Supplier Of Vending Machines
Aug-05-08
(1.3)
Supplier From Wuhan, China

Electronics, plastics, appliances, textile, toys, metal, printing, housewares, machinery inspection.

Supplier Of Plastic Raw Materials   |   Offset Printing Machinery & Equipments   |   Electronic Semi Conductor Devices & Other Components
Apr-07-14
(1.3)
Supplier From Wuhan, Hubei, China

Medical apparatus, clock, watch, crafwork package and electronic components, artifical nail, jewellery.

Supplier Of Watches & Clocks   |   Jewellery Items   |   Other Medical Equipments   |   Electric Components
Nov-04-21
(1.1)
Supplier From wuhan, China

Carbon Blocks, Pp Cotton, Ro Flat Sheet, Uf Membranes Refrigerator Water Filters, Kettle Filters, Coffee Machine Filters..

Supplier Of Cotton Bags   |   Air Filters   |   Ceramic Filters   |   Water Filters, Water Treatment Plants   |   Bed Linens, Bed Sheets   |   Filter Paper   |   Cotton   |   PP (Polypropylene) Plastic Bags   |   Industrial Filters   |   Carbon   |   PP (Polypropylene) Woven Bag   |   Refrigerator Parts   |   Electric Kettle
Aug-26-22
Transformer Standard Current Tester

Transformer Standard Current Tester

(1.1)
$770 - $15.40K
MOQ: Not Specified
  Wuhan GDMK Electric Co., Ltd.
Supplier From Wuhan, Survive, China
Supplier Of Electric Transformers   |   Electric Components   |   Electric Testers   |   Tools & Instruments
 
Product description

The current booster is used on checking current transformer,to be the power source supply once current for current transformer or to be other 50Hz single phase current source device.



Technical index

Temperature

Humidit

Capacity: 20kVA

Specification

Weight: 75Kg

Allow long-term work on the rated current

Allowable overload 1.5 times,30 minutes of continuous work.



Feature

This PSLLQ is make up of input Winding(220V), output winding below 100A and CXRZ.

Output current indicated on the nameplate is defined the rated current that through winding allow to pass.When CX many circles, the rated current its permitted to pass through will inversely decline.

The value which ouput capcity divided by product of output current and each circle voltage was the biggest circle number allowing.



The current booster is designed to provide the primary current power supply for the current transformer when verifying the current transformer or as other 50HZ single-phase power equipment. The current booster for transformer verification is suitable for power departments such as power testing, power measurement, and power maintenance. The current booster is developed and produced according to the industry standard of transformer error testing, and is used as a current transformer to verify the primary current of the current transformer. The output current can be customized according to customer requirements. The lifter is equipped with casters for easy on-site movement.
Aug-26-22
Transformer Control Box

Transformer Control Box

(1.1)
$770 - $15.40K
MOQ: Not Specified
  Wuhan GDMK Electric Co., Ltd.
Supplier From Wuhan, Survive, China
Supplier Of Electric Power Supply Components   |   Electric Components   |   Electric Transformers
 
Product Introduction

This Transformer control boxof console is suitable for adjustable voltage control of 0.5-10kVA test transformer.



Technical Indicators

Maximum capacity

20kVA

Input voltage

220kV

Output voltage

0-250V

Maximum output current

0-90A

Mains phase number

single-phase

Power frequency

50HZ

Instructions precision

1.5 Class




Using Methods and Attention Matters

1.Check the test transformer measuring winding rated output voltage, and make it match the operation box correctly.

2. Connect the line between test transformer and operation box according to the wiring diagram.

3. Switch on the power supply, then close the knife switch, and the power indicator light, finally set the work time of relay.

4. Make the pressure regulator display zero, press the start button, the clockwise rotation of the hand wheel, until it reaches the required value.

5. Start the timing switch, timing begins, the electric bell will alarm automatically when it reaches the setting time(artificially controlled time if there is on alarming function), then break off the timing switch.



Q&A:

What is the difference between a control box and a box-type transformer



The control box has only control functions. It is a control unit. Its main function is to issue instructions to control the rapid breaking of the circuit breaker in the box substation; it is a component in the box substation.

The box-type transformer generally refers to the box-type substation, which integrates the functions of power transformation, power distribution, control, and protection.
May-06-22
Three-Phase Microcomputer Relay Protection

Three-Phase Microcomputer Relay Protection

(1.1)
$770 - $15.40K
MOQ: Not Specified
  Wuhan GDMK Electric Co., Ltd.
Supplier From Wuhan, Survive, China
Supplier Of Electric Relays   |   Electric Components   |   Tools & Instruments   |   Electric Power Supply Components
 
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
Apr-29-22
Digital Three-Phase Shifter

Digital Three-Phase Shifter

(1.1)
$770 - $15.40K
MOQ: Not Specified
  Wuhan GDMK Electric Co., Ltd.
Supplier From Wuhan, Survive, China
Supplier Of Tools & Instruments   |   Electric Power Meters   |   Electric Components   |   Electric Testers
 
Overview

The digital three-phase shifter is a portable electrical tester composed of transformer phase shifter, digital phase display, voltage current digital display, output voltage adjustment, coarse adjustment, fine adjustment, and power supply, etc. The digital three-phase shifter combines the transformer phase phase technology with digital measurement techniques, which can be adjusted at any angle in the range of 0 to 360 , which has high precision, reading. Accurate intuitive, the voltage output is adjustable, the digital three-phase shifter structural components use independent fixtures, firm and reliable, full seals, easy to carry in the field and on-site use.



Technical parameter

Input voltage Three-phase four-wire 3 380 (220) V 50Hz
The output voltage Three-phase four-wire 3 (0 380) / (0 220) Triple semi-digital display, accuracy: level 1
Output current Communication 0 ~ 20A Triple semi-digital display, accuracy: level 1
Maximum output capacity 3 300VA
Three-phase coarse Ambient temperature: 0 360 Move 30 per step
Aug-22-01
(1.3)
Supplier From Wuhan, Hubei, China

Loudspeaker, speaker parts, permanent magnets, auto-darkening filter welding helmet.

Supplier Of Loudspeakers   |   Welding & Wire Mesh Machinery   |   Loudspeaker Parts   |   Magnets & Magnetic Products
Apr-14-18
(1.0)
Supplier From Wuhan, Hubei, China

Robot, include humanoid service robot, education robot arm, floor scrubber robot, cleaning equipment.

Supplier Of Robots & Spare Parts
Apr-29-22
Microcomputer Relay Protection Tester

Microcomputer Relay Protection Tester

(1.1)
$770 - $15.40K
MOQ: Not Specified
  Wuhan GDMK Electric Co., Ltd.
Supplier From Wuhan, Survive, China
Supplier Of Electric Testers   |   Electric Components   |   Tools & Instruments
 
Microcomputer relay protection tester also known as three-phase microcomputer relay protection tester, three-phase microcomputer relay protection tester is a special power relay protection tester.Three-phase microcomputer relay protection tester has 4 phase voltage 3 phase current output, suitable for various types of relay protection device test.Three-phase microcomputer relay protection tester adopts high speed and high performance digital control processor as control microcomputer, and the software uses double precision algorithm to generate arbitrary high precision waveform of each phase.Because of the integrated structure, each part is closely combined, the data transmission distance is short, and the structure is compact.It overcomes the problem of low number of output waveform points caused by long data communication line and narrow frequency band in the measurement and control instrument directly controlled by laptop computer.



Technical parameter :

AC current output
Phase current output (effective value) 040A
Three merge current output (effective value) 0120A
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 900VA
Working time is allowed when the maximum output of the three mesh is output 10s
Frequency range (fundamental) 201000Hz
Harmonics 1 20 times


AC voltage output
Output accuracy Level 0.2
Phase voltage output valid value 0120V
Line voltage output valid value 0210V
Maximum voltage output value 0240V
Phase voltage / line voltage output power 80VA /100VA
Frequency range (fundamental) 201000Hz
Harmonics 1 20 times


volume and weight Dimensions 365*300*165MM
Stand-alone weight 15.5KG
845 Computers Electronics Communications Electrical Suppliers
Short on time? Let Computers Electronics Communications Electrical sellers contact you.
See what buyers and suppliers are discussing in Computers Electronics Communications Electrical import export community
No Time to Search? Post Your Buy Requirement to Suppliers Worldwide.
Download from App Store Download from Google Play
go4WorldBusiness +91-89298-00770 52B, First Floor, Okhla Phase-3 New Delhi, INDIA 110020
© go4WorldBusiness.com