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Transmission Line Parameter Test System

Supplier From China
Jun-23-21

Product description

Transmission Line Parameter Test System is of an integrated structure, with a built-in variable frequency power supply module and a variable frequency voltage regulating output power supply. The frequency can be changed to 45Hz and 55Hz. Digital filtering technology is adopted to avoid the interference of power frequency electric field to the test and fundamentally solve the difficult problem of accurate measurement under strong electric field interference. At the same time, it is applicable to the occasions where the generator is used for power supply detection after all power outages.



Technical index

1 Utilization Conditions -20 50 RH 80%

2 Anti-interference Principle Frequency variation method

3 Power Supply AC220V±10% Generator 3KW

4 Power Output Max.output voltage AC300V

Voltage accuracy 0.5%

Current accuracy 0.5%

Max.output current 8A

Output frequency 45Hzã??55Hz

Interference Current 30A

Resistance to Induced Voltage 10KV

Memory Size 200 groups Support U Disk Data Storage

Weight 67 Kg

Price and Minimum Quantity

Price: $770 - $15397
MOQ: Not Specified

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Jul-05-21

Transmission Line Test System

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MOQ: Not Specified
 
Transmission Line Test System is a new generation power transmission line frequency parameter testing system. It equips with frequency conversion testing power DFT Digital Filtering Technique which eliminates strong interference from power frequency electric field and ensures the safety of equipment convenient fast and accurate measurement.


1. Quickly and accurately test the positive sequence capacitance the positive sequence impedance zero sequence capacitance zero sequence impedance also can measure the mutual inductance and coupling capacitance between lines ;

2. High Anti-interference ability accurate and reliable measurement;

3. Easy operation equipped with large LCD and American rotating mouse and micro printer

4. Simple wiring only connecting with tested down leads to finish all line parameter measurement

5. High speed micro-controller as inner core integrated structure

6. Fast testing process one sequence parameter testing time is 1 min

7. Supplied with three groups different frequency power supply for selection: 42.5Hz/57.5Hz 45Hz/55Hz 47.5Hz/52.5Hz easily isolate the power frequency and noise wave to ensure high precision measurement of small signals.
Jun-06-21

Transmission Line Test System

$770 - $15.40K
MOQ: Not Specified
 
Transmission Line Test System is a new generation power transmission line frequency parameter testing system. It equips with frequency conversion testing power DFT Digital Filtering Technique which eliminates strong interference from power frequency electric field and ensures the safety of equipment convenient fast and accurate measurement.


1. Quickly and accurately test the positive sequence capacitance the positive sequence impedance zero sequence capacitance zero sequence impedance also can measure the mutual inductance and coupling capacitance between lines ;

2. High Anti-interference ability accurate and reliable measurement;

3. Easy operation equipped with large LCD and American rotating mouse and micro printer

4. Simple wiring only connecting with tested down leads to finish all line parameter measurement

5. High speed micro-controller as inner core integrated structure

6. Fast testing process one sequence parameter testing time is 1 min

7. Supplied with three groups different frequency power supply for selection: 42.5Hz/57.5Hz 45Hz/55Hz 47.5Hz/52.5Hz easily isolate the power frequency and noise wave to ensure high precision measurement of small signals.
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VERIFIED
Aug-08-08
Supplier From Shanghai, China, China
GOLD Member
Feb-07-00
Supplier From Mumbai, Maharashtra, India
GOLD Member
Feb-02-18
 
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.
GOLD Member
Jan-08-18

Aluminium Sulphate

$180
MOQ: 27  Meters
Sample Available
 
Product Name:Aluminium sulphate
Molecular Formula:AL2(SO4)3
Hs Code: 2833220000
CAS Code:10043-01-3
Standard:HG2225-2010

Shape:flake, powder, 2-4cm lump and 2-5mm/3-8mm granular

Properties:There are two types,anhydrous aluminium sulphate and aluminium sulphate octadecahydrate. In normal condition , it is AL2(SO4)3 18H2O; AL2(SO4)3 14H2O after efflorescence, can be white powder , glittering flaky or crystalline flakes, odorless, sweet to slight bitter.

Use:Sewage Treatment, treatment of drinking water, Sizing of paper , Cement Additive.

Specifications
Item Name Standard
AL2O3 15.6% 16.5% 17%
Fe2O3 ¤0.5 % 0.005 % 0.004%
PH value .0 3.0 3.0
Water insoluble matter 0.2% 0.04% 0.03%

Packing 25kg or 50kg or 1000kg in plastic lined woven bag
GOLD Member
Jan-08-18
 
Commodity: Sodium Sulphate anhydrous

Product Nature
Molecular formula: Na2SO4
Molecular weight: 142.04
Property: white granular crystal or powder

Use
As filler of detergent, the making of sodium sulphide, water glass, or used in papermaking, glass, dye and used as filler, dyeing auxiliary, laxative, antidote, t also can be used in fiber, leather, metallurgy, enamel and soap.

Specifications
Item GB6009-2003
Type First grade Result of common product Result of neutral product
Na2SO4 99.0 99.20 99 40
Water insoluble matter %0.05 0.02 03
Ca & Mg %(Mg) 0.15 0.02 02
Chloride %(Cl) 0.35 0.23 20
(Fe) 0.002 0.0001 0001
Moisture % 0.20 0.02 02
Whiteness % 82 88 85

Packing and Storage
Knitted bags lined polyethylene plastic bags double packaging, Weighing 25Kg/50KG/1000Kg. Transportation-and harsh rain. Stored in a cool, ventilated, dry place.
GOLD Member
Feb-02-18
 
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
GOLD Member
Dec-27-22
 
Product Features
The purity of the product, calcium and phosphorus ratio appropriate to ensure a higher degree of its biological effects. Phosphorus content greater than 21% of the products, their biological effects better. This unique high-tech companies use technology to make our products crystallization, high purity.
Drying process advanced products, products with low free water under the premise that the product does not lose crystallization of water, avoid the product in the drying process for the loss of water caused by crystallization of biological effects of the reduction.
coarse particles MDCP in the animals stay in the stomach longer and more conducive to the absorption of calcium phosphate, the product produced by micro-particles MDCP form, without any chemical binder.

Specifications
Appearance white powder or granule
Phosphate  21% min
Calcium     15% min
Fluorine    0.18% max
Arsenic    30ppm max
Pb   30ppm max

Source of OriginRock

Packing and Storage
Knitted bags lined polyethylene plastic bags
double packaging, Weighing 25Kg.
Transportation-and harsh rain.
Stored in a cool, ventilated, dry place.

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