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Medium Frequency Generator Set

 
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Description

The medium frequency generator set produced by our company is mainly used with power source of airfield, radar, and all kinds of communications. We provide medium frequency generators with 11 specifications and 12 types, including 30, 50, 75, 90, 120, 200KW, which have different output, double current output, for example. Additionally, we can also provide tailor-made medium frequency generator sets according to specific needs of customers.

The medium frequency generator is in complete conformity with all the requirements of ISO6858 and GJB572-1998 in terms of electric performance.

Specifications
Excitation method of synchronous generator with medium frequency
The generation part or dc generation part of medium frequency is brushless excitation with automatic voltage regulator.
Uncontrollable phase compound excitation with brush is adopted in generators of power frequency.
Main technical parameters of synchronous generator with power frequency
Capacity range(kW)
Medium frequency
50～200
Frequency converting of M-frequency
75, 120, 200
Frequency converting of double frequency
100(p-frequency), 100(m-frequency)
Rated current(A)
Double current
17.1/30, 22.8/7.5, 2X22.8/15
Rated voltage(V)
Power frequency input
380
Medium frequency output
200 Or 400
Dc output
28.5
Rated frequency(Hz)
Power frequency input
50
Medium frequency output
400
Rated speed (r/min)
Medium frequency
1500, 2000, 3000
Frequency converting of M-frequency
1500, 3000
Frequency converting of double frequency
1500, 3000
Double current
4000, 2000, 1500
Rated power factor
Medium frequency output
COSΦ=0.8(lagging)
Power frequency output
COSΦ=1 or COSΦ=0.9(advancing)
Insulation class
Class F
Protective class
IP21
Main specifications of m-frequency of synchronous motor
M-frequency output part (the end of the 10m cable)
Setting range of no loading voltage
95% ～ 105%Un
Adjusting rate of steady voltage
≤±1%
No-loading and 3-phase balance loading
The average gap between each phase voltage and 3-phase voltage should not be more than 0.5% of the average value of the 3-phase voltage; phase gap between adjacent phase voltage is 120°±0.5°.
5% 3-phase unbalance loading
The gap between each phase voltage should not be more than 3V, phase gap between adjacent phase voltage is 120°±2°

The modulation value between phase voltage should not be more than 3.5V.
Rated voltage From no-loading to full-loading ,power factor of loading will change from 0.8(lagging) to 1,wave form of output phase voltage of m-frequency
Peak coefficient is 1.41±0.1.
Total harmonic wave content should not be more than 3%.
A harmonic wave content should not be more than 2%.
Bias coefficient should not be more than 5%.
Dynamic performance
When COSΦ=1, 80% rated current is added or reduced from no-loading rated voltage, the transient change of the phase voltage is between 90～140V,the recover time of voltage will not exceed 0.3s; When COSΦ=0.6(lagging) 150% rated current is added or reduced from no-loading rated voltage, the transient change of the phase voltage is between 70～170V,the recover time of voltage will not exceed 1s.
M-frequency output part (the end of the 10m cable)
Stable performance
When the loading current changes from no-loading to rated value, output voltage is fixed at 28.5±1.5V, the gap between pulsating voltage peak value and average value is not more than 2V.
Dynamic performance
When rated current load from 5%～80% is added or reduced, the transient change of the phase voltage is between 20～35V, the recover time of voltage is not more than 0.2s; When 150% rated current is added or reduced from no-loading rated voltage is between 15~45V, the recover time of voltage will not exceed 1s.
We are an experienced medium frequency generator set supplier in China. It has obtained ISO9001:2000 certification due to its operation in strict compliance with international standards. In addition to medium frequency generator set, we also provide high voltage generator set, Caterpillar generator set, Deutz generator set, MTU generator set, and more. We welcome global buyers to contact us and try our products. We would like to establish business relationship with more and more global customers.

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