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Dec-16-21
 
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 68 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
Dec-15-21

Zinc Oxide Arrester Tester

$770 - $15.40K
MOQ: Not Specified
 
Product description

The metal oxide arrester tester is used for the measurement and analysis of metal oxide arrester MOA leakage. It is mainly used for measuring the resistive current to analyze the degree of zinc oxide aging and damp. The field charged test shall conform to Electric Power Industry Standard of the People's DL474.5-92 Guide for Insulation Test on Site - Lightning Arrester Tests. The metal oxide arrester tester can be also used for factory and acceptance tests.



Zinc oxide arrester tester Technical Indexes

Range of reference voltage input peak 10V-200V

Measurement range of full leakage current peak 100uA 10mA

Measurement range of resistive current peak 100uA 10mA

Measurement range of capacitive current peak 100uA 10mA

Measurement range of angle 0-90

Power consumption 4W

System measurement accuracy reading 5 5 words not more than 2m for harmonic current

AC power supply AC 220V 10 50Hz 1



Precautions

When measure the reference voltage from PT or the measuring end of the testing transformer, carefully check wiring to avoid the PT secondary or test voltage short circuit.

Be careful not to wrongly connect the current and voltage sampling lines in the connecting process.

In the laboratory experiment, the high voltage power supply cannot use the series excitation testing transformer.
Dec-15-21
 
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
Dec-10-21
 
Product description

Earth ground resistance tester is a high-precision testing instrument used in various fields such as substations to test grounding resistance and related parameters.The instrument is of an integrated structure, with a built-in frequency conversion power supply module, and the output power supply is continuously variable in frequency. The frequency can be changed to 45Hz or 55Hz, the high-speed processor core is built in, and the high-end digital filtering technology is adopted, thus effectively avoiding the interference of power frequency electric field to the test and fundamentally solving the difficult problem of accurate measurement under strong electric field interference.


Technical index

1

Conditions of use

1 540

RH 80%

2

Anti-interference principle

Frequency conversion method

3

Electric source

AC 220V 10%

allowed generator

4

Measure output current

1A 5A Adjustable

5

Measure output voltage

0V 100V

6

Test power frequency


45, 50, 55, 60, 65HZ single frequency

45 55, 55 65 47.5 52.5HZ Automatic Dual Frequency

7

Output rating

500W

8

Distinguishing rate

Grounding impedance 0.0001

Impedance angle 0.0001
9

Precision

Grounding impedance 1% reading 0.002

Impedance angle 1% reading 0.02
10

Resistance measurement range

0.001 5

11

Exterior dimensions

370 295 W 225 H

12

Memory size

100 groups support U disk data storage

13

Weight

Main engine 13 Kg, ground pile 7 Kg
Jan-14-22
 
RE-100L rotary evaporator is mainly used in the concentration, crystallization, drying, separation and solvent recovery of pharmaceutical, chemical and biological pharmaceutical industries. Its principle is: under vacuum condition, constant temperature heating makes the rotary bottle rotate at constant speed, and the material forms large area film on the bottle wall, so it can be evaporated efficiently. The solvent evaporation is cooled by the high-efficiency glass condenser and recovered in the collecting bottle, so as to greatly improve the evaporation efficiency. The utility model is especially suitable for concentrating and purifying biological articles with high temperature and easy decomposition and degeneration.

Applications of the RE-100L Rotary evaporator
RE-100L rotary evaporator is mainly used in the concentration, crystallization, drying, separation and solvent recovery of pharmaceutical, chemical and biological pharmaceutical industries.
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