500KW 3-х фазный генератор для нагрузочного испытания в

2. Technical Parameter

3. Function Introduction

a) Steady-state Test:

Load power in rated range, measure UPS/Generator steady-state 3 phase voltage, current, active power, reactive power, apparent power, power factor, frequency, and running time.

b) Setting Test:

Can catch the max and min setting value of voltage & frequency and calculate the relative setting up and down range of voltage and frequency and adjustment rate within 100 seconds setting time.

c) Fluctuation Test:

Catch the max & min fluctuating value of voltage and frequency, and calculate steady-state frequency band, steady-state voltage deviation, voltage modulation, fluctuation rate and frequency in 60 seconds time.

d) Transient Test (Instant Load Test):

Sample interval is 40μs,system catch the transient max and min value and recovery time of voltage, current, and frequency, and calculate instant load transient voltage deviation and instant load transient frequency deviation.

e) Harmonic Analysis:

It can analysis 2~50 harmonic content and total harmonic content in voltage and current at same time.

f) Record Wave Analysis:

5 patterns for recording voltage real-time waveform, and the record time is 4~ 280 seconds and accurately sampling at 128 points in a wave cycle at most.

4. Data Processing Software Functions:

1)     Communication type: through RS232, RS485 or USB interface.

2)     Load mode: manual load or automatic load.

3)     Manual load: input power and power factor.

4)     Automatic load: User can set several periods of power and time, and in turn of 0%→25%→50%→75%→100%, etc preset order to make automatic load testing.

5)     Parallel testing: when several load banks parallel working, parameters of each load bank can be displayed and recorded, so do the final parameters of paralleling working.

6)     Real-time parameter: Current, voltage, power, power factor, frequency, time, etc could be displayed by software.

7)     Safety monitoring: User can know the working conditions of load bank through software indicating light. When in abnormal stop protection, software will indicate the reasons of stopping.

8)     Data collection interval: the min saving interval is 2 seconds.

9)     Data saving and in query: testing data could be saved in software, user can query at any time.

10) Data display: it could display real-time data and history data; user can print voltage, current, frequency, power graphs and charts.

11) Charts and graphs are output in format of JPG while testing data output in Excel format, and all can be printed.

5. Protection Function

1) Emergency Stop: User can press the emergency stop button in the panel to unload immediately when the load bank is abnormal while working.

2) Over-voltage Protection: Automatic load dump and give alarm when voltage is over safety thresholds.

3) Over-heat Protection: Automatic load dump and give alarm when temperature is over safety thresholds.

4) Short Circuit Protection: Equip with fuse, automatic load dump when current is over large.   

5) Fan Interlock protection: Machine could not do load testing before working power of fan is on.

6) Fan Capacity Protection: Load bank will unload and give alarm when any fan is abnormal or with insufficient air volume, etc.

7) Phase Sequence Automatic Conversion Protection When control power cable in wrong connections, 3 phase fans can also work in good conditions.

8) Protection button: there are some protection buttons can be switched off when false alarm or for special requirements.

9) Enclosure Ground Protection: the load bank with special ground protection terminal to avoid user under risk of electric shock hazard.