變頻電源是將工業電網中的交流電經過ac-dc-ac變換，輸出為純凈的正弦波，輸出頻率和電壓一定范圍內可調。它有別于用于電機調速用的變頻器，也有別于普通交流穩壓電源。理想的交流電源的特點是頻率穩定、電壓穩定、內阻等于零、電壓波形為純正弦波(無失真)。

廈門岳航計算機工程有限公司

聯系人：李素云

企業QQ：2851195446，2851195466

手機：18965423501

座機：0592-5165501

變頻電源十分接近于理想交流電源，輸出相位偏差在±2°內，頻率穩定率≤0.01%，負載穩壓率在±0.5%范圍內，波形失真度≤2%(阻性負載)，反應時間值為2ms，效率≥85%，帶有輸入、輸出無熔絲開關，電子電路快速偵測過電壓、過電流、過載、過高溫&短路并自動跳脫保護及告警等保護裝置。因此，先進發達越來越多地將變頻電源用作標準供電電源，以便為用電器提供*優良的供電環境，便于客觀考核用電器的技術性能。

變頻電源可以帶載各種阻抗特性的負載，包括電感類、電阻類、整流類常見負載，需引起重視的是負載類型不同，所需變頻電源的功率容量有很大不同。

電源容量選擇方法：

阻性：電源容量 = 1.1×負載功率

感性：電源容量 =負載啟動電流/負載額定電流×負載功率

整流：電源容量 = 負載電流波峰系數/1.5×負載功率

混合型：請按照不同負載所占比例適當選取

注：對于冰箱、空調之類的感性負載，應按照啟動功率來選擇電源容量。啟動功率一般為額定功率的5-7倍。

通過選擇合理的變頻電源，就能模擬各地的電壓、頻率，獲得可靠的實驗室數據，對于使用*為普遍的電機而言，要按照感性負載進行選擇。我廠使用的電機功率為3kw，啟動電流約為額定電流的3倍，因此選擇15kva的電源容量已經足夠。當然，變頻器和變頻電源的價格也不在一個數量級，變頻電源的價格約為變頻器的10倍。

New in Box Lot of 500 Prima Pro W1409-02-BCXL Beard Covers, Latex Free

Optical Mount 2.1"-Diameter

Mettler Toledo BBA 462-15ST Precision Counting Scale 30lb, 0.002lb Resolution

Blue M BM115493 Box of 100 Recording Charts 24H/7D

Partlow 00214739 Box of 100 Recording Charts

Honeywell 680015-694 Box of 100 Circular Charts

Partlow 00213820 Box of 100 Recording Charts

Honeywell DR4502 Plotter Chart Recorder DR4502-1100-00-000-0-00-0111

Filter Housing for Styles 222 and 226 15 1/2" x 3 3/4" Overall

Shelco CSF-808-222 Filter Housing Stainless Steel 222 Style 20" Chamber

Wedeco IH-1S-HT Ideal Horizons UV Water Purifier (missing bulb)

Thermo Scientific 2835 180 Series 12L Water Bath 120VAC 3.3A 1PH w/Manual

Mitutoyo 378-802-2 M Plan Apo 5X Lens (cloudy - parts only)

Mitutoyo 378-802-2 M Plan Apo 5X Lens

Vertical Pole for Microscope Stand 13", 1-5/8" Base, 1-1/4" Tapered End Diameter

Phase Metrics 40147 Rev A ULPA Filter / Blower

Purafil VPSA 202-25 Filter System with (4) PK12 Filter Modules

NEY 40-S2DG-6T-240V-A sweepSONIK 2D 40kHz Ultrasonic Generator with Water Bath

Farr 4780581 Filter

VWR 1122S Immersion Circulators 120V

Wedeco UV Sterilization Controller With Wedeco DLR-AP UV Water Disinfection Unit

Thermo Scientific Revco REL404A 4.9 cf Labratory Refrigerator 115VAC +1° to +8°C

Neslab Exacal 109033190705 High Temperature Bath **For Parts Only**

Heated Glove Box 36"W x 25"D x 18"H

SGE International 5MDF-LL-GT 5ML Syringe

MC Air Filtration HEPA-V 30065D Air Filter 6" x 6" x 3"

Microscope Stand Base Plate 10" x 10" x 1 1/4" Height from Tabletop w/Feet

Melles Griot 59LGC550 Invaritar Lens -FOR PARTS-

Melles Griot 59LGF412 Lens

Melles Griot 59LGC550 Invaritar Lens

330106-05-30-05-02-00

330106-05-30-10-02-05

330130-040-00-00

330130-040-01-00

330130-045-00-00

9563-810

9853-610

DSAI110 57120001-DP

M3575R-H33BF

M68CPU CPU

MC-4/11/01/400

S-D4006-D

S-D4006-D S-D4006

S-D4008-A S-D4008

SM 25/50-TCT DC 560V 25A 06231-103

SR 469 469-P5-HI-A20

1336F-BRF200-AN-EN

1336F-BRF200-AN-EN

BS206 BIO420 BIO420/00

BS204 BIO246 BIO246/00

BS205 BIO413 BIO413/00

New in Package Labline 016-675-00 Shaker Sensor

Vision Engineering Dynascope Microscope Head Unknown Model w/ Light *FOR PARTS*

New in Box Minntech 50-103 FiberFlo Cartridge Filter 0.05μm 10" L 222 End

New in Box PTI Advanced Filtration Clariflow Filter 25-60310-004-1-G 0.45μm 10"

New in Box PTI Advanced Filtration PG-10310-005-1 Polyflow-G 0.5μ 10" Length

New Wedeco 1-A DLR1A UV Water Disinfection Unit 4GPM 120V

New Trox Technik F781Z080000000 HEPA Minipleat filter1525x610x78mm H13 Class

Terra 1978-02 Stainless Steel Tray from a Model 3950 Desiccator

Terra Universal Door from a Model 3950 Desiccator

Micron-Aire Contamination Control Enclosure Glove Box 35"x29"x19"