Variable Frequency Series Ac Resonant Test

Product Description:

Transformer GIS SF6 switch CT/PT insulator bus bar cable bushing and others capacitive devices are the common primary electric equipments.

The complete set of frequency conversion series resonance test equipment is mainly used for ac withstand voltage test of cross-linked cable hydraulic generator main transformer bus GIS etc.
The complete set of frequency conversion series resonance test equipment is mainly composed of frequency conversion control power supply excitation transformer reactor capacitor voltage divider and compensation capacitor (optional).

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

(I) Technical index

1. Rated voltage:

2. Quality factor under full load in test of fire power generator: Q10 (relating to load)

3. Quality factor under full load in cable test: Q 30 (relating to load)

4. Quality factor under full load in test of main transformer: Q 30 (relating to load)

5. GIS, the quality factor under full load in switch test and other tests: Q 50 (relating to load)

6. Input power supply: single phase of 380V

7. Frequency adjustment range: 20Hz 300Hz

8. Accuracy of system measurement: 1.5

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



(II) Description for main configuration and technical data of equipment:

1. 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

2. High-voltage resonane reactor (4sets in all): 27kV/1A

Rated working voltage: 27kV

Rated working current: 1A

Rated inductance value: 120H

Continuous working time: 60min

Temperature rise should be less than 60

Working frequency: 30- 300Hz

3. One set of exciting transformer:

Rated capacity: 10kVA

Input voltage: 400V

Output voltage: 1.2kV/3kV/5kV

Commodity: Sodium Hydrosulfite
Other name: Synonyms: Sodium Hydrosulphite; Sodium Dithionite; Dithionous acid, Disodium salt; Sodium Sulfoxylate
CAS No.: 7775-14-6
Molecular Weight: 174.10
Chemical Formula: Na2S2O4

Product Description
Appearance: White, crystalline powder.

Product Feature
Odor: Slight irritative.
Specific Gravity: Unavailable
Solubility: Soluble in water.
Density: 2.19
pH: 6-7
pH Test-Method: PH test paper.
% Volatiles by volume @ 21C (70F): 0
Boiling Point: Not applicable.
Melting Point: >300 C Decomposes.
Vapor Pressure (mm Hg): No information found.
Bulk Density: ~0.9
Evaporation Rate (BuAc=1): No information found.

Application
1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
2. bleaching paper pulps , especially mechanical pulps, its the most fittable bleaching agent in pulps.
3. bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products,
4. in mineral, the compound of thiourea and other sulphides.
5. as reducing agent in chemical industry.
6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.

Packaging 50kg/100kg net in iron drums with double PVC bags

Product Specification/Models
NDEX 90%, 88%, 85%. FOOD ADDITIVE
Na2S2O4, 90%, 88%, 85%, Fe 20ppm ZincZnOther heavy metal
calculated as Pb, 1ppm
Water Insolubles05%
Shelf Life(month)12

Commodity: Sodium Bisulfite
Molecular Formula: NaHSO3
Molecular Weight: 104.06

Properties: White monoclinic crystalline powder with sulfur dioxide odor; relative density: 1.49; very easily soluble in water; can be decomposed when heated; slightly soluble in ethanol; aqueous solution is acidic; has strong reducing property; can be oxidized in the air or loose sulfur dioxide.

Quality Standard: HG/T3492-80
Technical Indicator High-purity grade Acrylic grade Food grade Refined grade Industrial grade 1
NaHSO3 % 99.5
Insol. in water % 0.003, 0.005, 0.03, 0.04, 0.05
Chloride(Cl) % 0.003, 0.004
Iron(Fe) % 0.001 0.002 0.005
Heavy metal(Pb) 0.001
Arsenic(As) % 0.0001
Clarity test Qualified

Use: It is used in the bleaching of cotton textiles; as reducing agent in dyes, paper-making, leather, chemical synthesis; in the manufacture of pharmaceutical intermediates, developer, food bleacher, antiseptic and anti-oxidants.

Packing: In PP woven bag lined with PE bag; paper-plastic composite bag, and kraft paper bag etc.

Net wt.: 25/50/1000 kgs/bag or upon clients' request.

Commodity: Ammonium bicarbonate Food grade
Molecular formula:NH4HCO3
Molecule Weight: 79.05
H.S code: 2836994000
CAS: 1066-33-7

Product Physical Properties
WHITE POWDER CRYSTAL, SPECIFIC GRAVITY IS 1.586, IT CANDISSOLVE IN WATER, BUT CANT DISSOLVE IN ALCOHOL AND ACETINE.

Specifications:
Appearance: white free-flowing crystalline powder without agglomeration
Purity as Ammonium Bicarbonate ,% by weight 99.5 (minimum)
Chloride (as Cl), % by weight 0.20(maximum)
Sulphates (as SO4),% by weight 0.10(maximum)
Iron (as Fe), % by weight 0.004(maximum)
Nonvolatile matter, % by weight 0.10(maximum)
Heavy metals (as Pb), ppm 2.50(maximum)
Copper (as Cu), ppm 5.0(maximum)
Arsenic (as As), ppm 0.6(maximum)
Tarry matter To pass test
Oil Content Less than 10 ppm
Melamine Content NIL

USAGE
BAKING FOODS SUCH AS CRISP CAKE, BISCUIT ETC. IN ADDITION, ITALSO WIDELY USED IN CHEMICAL FIELD SUCH AS FLOUR BRIGHTENING AGENT,RARE EARTH DEEP PROCESSING, MEDICINE MIDBODY, PLASTICS PROCESSING,ELECTRONIC ELEMENT ETC.

PACKING
OUTSIDE IS WEAVE BAG OR PAPER BAG, INSIDE IS FOOD PLASTICSBAG, 25KG/BAG. THE PACKING ALSO CAN ACCORDING TO CONSUMERS REQUEST.

STORAGE
Stored in a cool, ventilated, dry place.

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Product Details
Product introduction

Series resonance device is mainly designed and manufactured for communication voltage endurance test of 11kV/30MW hydro-generator. Two separate designs are adopted for reactor.
Series resonance device is mainly composed of frequency conversion control power supply excitation transformer reactor and capacitor voltage divider.

We are exporter of Calcined Alumina.

According to different requirements, five series of products have been formed, including dry pressing, hot die casting, refractory, casting and setting, structural ceramic granulator, etc. It can be widely used in electronic equipment, structural ceramics, refractories, wear-resistant materials, polishing materials and other industries.

Bacoban DL
Alcohol-free disinfection and cleaning of medical fittings and equipment and other surfaces (in accordance with Directive 93/42/EEC: MDD). The product conforms to British Standards under ISO standards DIN EN ISO 13485:2010; DIN EN ISO 9001:2008; DIN EN ISO 10993-1; DIN EN ISO 14971:2007; and EN 14885.
Bacoban is a disinfectant product produced in Germany by Ropimex R Opel GmbH. Its certifications are under the Disinfectants Commission in the Association for Applied Hygiene (VAH) in collaboration with the Scientific Societies and Professional Associations DGHM, DGKH, GHUP, BVÃ?GD and BDH tested according to the DGHM Standard Methods for Testing Chemical Disinfection Processes and deemed to be effective for prophylactic disinfection and hygienic handwash. Does not contain Aldehyde or Phenol. Microbiological effectiveness Bacoban DL is effective against: bacteria, fungi, viruses (hepatitis B and C, HIV, influenza including H5N1and H1N1, Rotaviruses and adenoviruses), and as listed on the page 'Infections that Bacoban kills'

pellet machine, with the advantages of low noise, easy and stable operation,
high automation, can make pellet dia size from 6mm to 12 mm and the output capacity from 1.5t/h to 2.5t/h. We can offer you the complete solution for making pellets, from crushing, drying to pelletizing.

Features :
1. This machine adopts gear first stage driving system, with ideal drive ratio and enormous driving force, its transmission us stable with low noise, operate simply, no blocking is happened to the machine easily.
2. The maximize design if pinch roller can lower the requirement to moisture content of materials in particle molding.
3. The motor and gear cases are installed at the heavy pedestal, pin coupling is used to realize direct connecting, which can exempt from foundation installation and easy to repair and maintain.
4. The machine is equipped with patented water circulation; the cooling system can be used to control the temperature rising of each part efficiently, to guarantee the continuous, stable, reliable running of the machines.
5. The machine adopts advanced variable frequency motor to feed, which equipped with overload intelligent protection.