NBIM02
NBIM02
NBIM02
鼠笼型异步电动机是现代工农业生产中被广泛采用的一种动力机械。作为拖动生产机械的电动机，对其起动眭能的主要要求是：①具有足够大的起动转矩；②具有较小的起动电流；③起动设备结构简单，操作方便；④起动过程中能量损耗越小越好。
1 电机起动的传统方式
鼠笼型电动机直接全压起动时的大电流在电机定子线圈和转子鼠笼条上产生很大的冲击力，会破坏绕组绝缘和造成鼠笼条断裂，引起电机故障；大电流还会产生大量的热，损伤绕组绝缘，减少电机寿命。可采用增大配电容量或限制电机起动电流的方法来解决上述问题。如果仅仅为起动电机而增大配电容量，这样并不经济。因此，通常配备限制电机起动电流的起动设备。常用的方法有：
1）定子串接电抗器或电阻起动。定子串电抗器起动，降低了起动电流，但也降低了起动电压，使得起动转矩降低得更多。因此，定子串电抗器降压起动只适用于电动机的轻载起动。
2）丫一△降压起动。丫一△降压起动也是适用于电动机的轻载起动，而且限于正常运行为△接法的电动机。鲁布革电厂低压空气压缩机电机就是采用此种方式。
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Allen-Bradley 厦门泰尼电气有限公司
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Agilent / HP 8648D Signal Generator, 9 kHz to 4 GHz with Options 1E2 & 1E5
Rohde Schwarz SMV03 Vector Signal Generator 9 kHz to 3.3 GHz, R&S
Agilent / HP 8131A Pulse Generator, 500 MHz + Option 020: Second Channel
Boonton 4532 RF Peak Power Meter, Dual Channel, 10 kHz to 40 GHz
Rohde Schwarz UPL66 Audio Analyzer + Options B4 B21 B22, by R&S
PST/Comtech AR8829-30 Amplifier, 800 MHz - 2 GHz, 30W
ETS Lindgren 4825-2, 9 kHz - 30 MHz, 25A Line Impedance Stabilization Network
Keithley 2400 SourceMeter, 200V, 1A, 20W
LeCroy LC584AM Digital Benchtop Oscilloscope 1 GHz, 4 Ch., 8 GSa/s
PST/Comtech AR1929-20 Amplifier, 1 to 2 GHz, 20 Watts
Agilent / HP 8648D Signal Generator, 9 kHz to 4 GHz w/ Option 1E5: High Time
Advantest R6161 DC Voltage / Current Generator
Agilent / HP 70910A Spectrum Analyzer RF Module, 100 Hz - 26.5 GHz
Agilent / HP E4406A VSA Series Transmitter Tester, 7 MHz - 4 GHz with Options
Agilent / HP N8487A Power Sensor, 50 MHz - 50 GHz, -35 dBm to +20 dBm w/ Options
Agilent / HP 8648D Signal Generator, 9 kHz to 4 GHz
Agilent / HP 16902A Logic Analyzer Main
AGILENT / HP 53181A RF FREQUENCY COUNTER 10 digit/sec.
Agilent / HP 85027C Directional Bridge, 10 MHz to 18 GHz
Agilent / HP 8560E Spectrum Analyzer, 30 Hz - 2.9 GHz
Agilent / HP 8753C Network Analyzer: 300 kHz - 3 GHz
Agilent / HP 84814A Peak Power Sensor, 500 MHz to 40 GHz
Agilent / HP 3585B Spectrum Analyzer, 20 Hz to 40.1 MHz
Tektronix TDS3034 300MHz Oscilloscope, 4 Ch. 2.5 GS/s + Option TDS3FFT & TDS3TRG
Tektronix SD43 E/O Converter DC - 8 GHz / 700 - 1650 nm
Agilent / HP 8753A Network Analyzer, 300 kHz to 3 GHz + Option 010: Time Domain
Tektronix 2797 Spectrum Analyzer, 100 Hz to 7.1 GHz
Keithley 238 High Current Source Measure Unit
LeCroy WaveRunner Model LT344L Digital Oscilloscope: 500 MHz, 500MS/s, 4Ch.
Agilent / HP 85070A Dielectric Probe Kit, 20 GHz
Agilent / HP N1922A Peak Power Sensor, 50 MHz - 40 GHz, -35dBm to +20dBm
Agilent / HP 41941B Impedance Probe Kit, 3M + Option 350 - 50 Ohm
LeCroy AP015 Current Probe, 50 MHz, 30A
Agilent / HP 85033D Calibration Kit, 3.5mm
Agilent / HP 85134F Flexible Cable Set, M0F - Both cables PSC 2.4 to 3.5 mm (f)
Keithley 236 Source Measurement Unit
Agilent / HP 8644B Signal Generator, 252 kHz - 1030 MHz (2060 MHz)
Agilent / HP 8757C Network Analyzer, 110 GHz, Scalar
Agilent / HP 16453A Dialectric Material Test Fixture
Agilent / HP 8648C Signal Generator, 9 kHz - 3.2 GHz + Option 1E5
Agilent / HP N4002A Noise Source, SNS Series, 10 MHz to 26.5 GHz, ENR 15dB
Gigatronics 80353A Peak Power Sensor, 45 MHz - 26.5 GHz, -20 to +20 dBM, K(m)
LeCroy LC334A Oscilloscope: 500 MHz, 4 Ch., 500 MS/s
Agilent / HP 87511A S-Parameter Test Set, 100 kHz to 500 MHz + 001: N-TYPE PORT
Keithley 6220 DC Precision Current Source + GPIB
Agilent / HP 83592C RF Signal Generator Plug-in Module, 10 MHz to 20 GHz
Agilent / HP 6675A-J07 Power Supply: 200V, 11A, 2200W
AGILENT / HP 54641D Mixed Signal Oscilloscope 350 MHz 54642D alternate
Keithley 580 Micro-Ohmmeter: 10 Micro-ohm Meter Sensitivity / 20mV Voltage Clamp
Bird Electronics 4421 RF Power Meter
ANRITSU MT8820A Radio Communication Analyzer + OPTIONS
Audio Precision PSIA-2722 Serial Interface Adapter
Agilent HP 85640A Tracking Generator, 300 kHz to 2.9 GHz
Agilent / HP 16720A Pattern Generator Module, 300 M Vector/sec (Plug-in Only)
Agilent / HP 6675A Power Supply, 120V, 18A, 2000W
Agilent / HP 85029B Verification Kit, 7 mm
Agilent / HP 41952A Transmission / Reflection Test Set, 50 Ohm
Agilent / HP 6032A DC Power Supply, 60V/50A
Agilent / HP 85033C Calibration Kit, 3.5mm
Agilent / HP E1852B Bluetooth Test Set
Tektronix TDS744A Oscilloscope, 500 MHz, 4 Ch., 2.5 GS/s + Options 13 1F 1M 2F
Tektronix AWG2021 Arbitrary Waveform Generator, 10 Hz - 250 MHz, 1 Ch. w/ Opt 04
Stanford Research SR530 Lock-In Amplifier, Dual Channel: 0.5 Hz to 100 kHz
Agilent / HP E4418B Power Meter, 9 kHz to 110 GHz + Option 002: Rear Panel Input
Boonton 4232A Dual Channel Power Meter
