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I'm having a question: We are having some equipments in US which to be moved to China. There is a power supply difference: US: 460V/60HZ CHINA: 380V/50HZ Searched a few articles about this equipments modifications. Any one here have any good suggestions?

Can anybody tell me where to get a hard copy of SLC 500 Reference manual (instruction set)?

Can a traditional Current Transformer be used in a VFD application? Is it capable to read correct current? For example , 10 HZ, 20HZ . A traditional Current Transformer I 've used normally works in a 50HZ application.

Hi, Which is the good power analyzer for inverter duty motor test ? Yokogawa is one, any body else? Txs.

Sorry for my "broken" English again here:) My question is : I have two VFD driving two motors as back to back loading, that means one motor as test motor and another one as dyno motor ( also as generator). The principle is first start both test and dyno motor at full speed, they are running...

How to convert a 3p/2HP/460v/60hz motor in applicaion 3p/2hp/360/60hz? Motor needs rewind, is it?How to calculate the rewind date based on the original winding data?

Having one Reliance motor, in the RTD specification they write: "PlATINUM,0.00392 TCR". I'am try using AllenBradley RTD input module , but as of the "input type selection", one is the 100PT(385), other one is the 100PT(3916). Which one shall select then to make the bit seeing in the channel...

Dear all, I'm looking for information on VFD(inverter duty) motor test equipment. Is there any supplier making such equipment with auto report print, customrized test panel, etc? Or we have to build own test equipment? If so, that needs a lot of R&D. Help needed, thanks.

Somebody knew that what is the substitue for ALLEN BRADLEY PANELVIEW 2711-T9A2 as I was told that this model was obsolete now....many thanks.

Hi everyone Iam just curious about what kind of motor design software u r using? Can I have a hint ....

I'm testing no load with VFD + Reliance inverter motor). Reliance motor information is below: 50hz/5HP/2915RPM/380V/FLA7.63A HZ RANGE: 5-50HZ. INVERTER TORQUE: CONSTANT INVERT HP VALUE: 3 INVERT NP AMPS: 5.3 CODE:J But when I started the VFD at 5 HZ, motor current was 8.5A. While my VFD...

Does NEMA specify the core length of 182T frame? if yes, what is the core length? tHX!

a NEMA TEXP motor convert to IEC, what is the code ? Any document to define this?

I want to buy a 1hp 120v explosion proof single-phase motor, who is the good manufacturer? Anybody could recomment?

An inverter duty motor normally says "1000:1 constant torque". what is the "1000:1"? Any standard like NEMA defines that? Look for your help, thx!

I have a question about Circuit breaker. Cutler hammer Circuit breaker, 600V,15A, 100KAIC,3POLE. What does 100KAIC mean? 100KA inrush current? Sorry for I'm not experienced. I take this BBS as my teacker:)

I have a Reliance inverter duty motor, on the report , there writes: duty HP RPM AMPS VOLTS HERTZ CONT 400 1150 445 575 58 CONT 400 2400 387 575 121 My questions are : 1. why 58herz? This motor is for China market, so the base frequencey should be 60herz? 2. why...

I'm quite new to DC motor application and wanna learn a lot. Anybody could tell me how does the control signal lead (NEMA letter "C", between Intercoil and armature) work? To what it connect? Why call it control signal?

Does anyone knows the iec standard number that defines frame designation, cooling method for polyphase motor? Thanks.

Hi everybody, We are thinking setup a load test stand for inverter duty motors. Put one inverter motor as the dyno, the test motor coupled with this dyno motor. Both motors controlled by two VFD drives. This should work in theory, But practically a few questions I need to know. 1. When the test...