99

• Analyze up to the 100th order

Synchronized to the fundamental wave frequency of 0.5 Hz to 5 kHz

Simultaneously perform analysis up to the 100th order harmonic

along with power measurement

Synchronization frequency range Window wave number

Analysis order

0.5Hz to 40Hz

1

100th order

40Hz to 80Hz

1

100th order

80Hz to 160Hz

2

80th order

160Hz to 320Hz

4

40th order

320Hz to 640Hz

8

20th order

640Hz to 1.2kHz

16

10th order

1.2kHz to 2.5kHz

32

5th order

2.5kHz to 5.0kHz

64

3rd order

■

Correct the rotation synchronization signal and induced voltage phase of motors as well as measure the phase of voltage and current for the induced voltage of a running motor as

an electrical angle.

○ Measure the fundamental wave’s RMS value

and the total RMS value of the induced voltage.

○ Perform zero compensation for the phase

between the rotation synchronization signal and

the fundamental wave voltage of the induced

voltage.

○ Measure the fundamental wave component, harmonic component, and electrical angle of line voltage

○ Simultaneously measure motor efficiency, inverter efficiency, total efficiency, and inverter loss while

observing the motor control.

Other Advance Functionsmotor

• Frequency divider circuit (up to 1/60000 frequency dividing) – helpful when the rotation synchronization

signal consists of multiple pulses for one cycle of induced voltage.

• Δ-to-Yconversation function - convert the line voltage to a phase voltage (virtual neutral reference) when

three-phase three-wire (3P3W3M connection) measurements are performed.

To measure temperature, use:

1. HIOKI 3440 Series Temperature HiTESTER

2. Interface Pack 3909

3. RS-232C Cable 9637

• Harmonic analysis from a synchronization frequency of 0.5 Hz

Accurate measurements can be performed in the low-speed rotation

range of motors without the need of an external clock.

If the synchronization frequency is 45 Hz or more, analysis results are

updated every 50 ms, so data analysis can be performed in real time.

Clearly view the inverter efficiency/loss and motor power

• Output, efficiency, and loss of inverter motors can be measured with

one single unit

Operating efficiency and power loss of the inverter and motor can be displayed

when the inputs and outputs of the inverter are measured simultaneously.

4

X-Ygraph display lets you check the dynamic characteristics of inverters

By simply setting 2 items to the Y-axis as with a 6-axis graph used to evaluate motors,

you can display the characteristics of a motor and similar devices in real time.

5

Temperature data that is indispensable for motor evaluation

can also be measured simultaneously

• Connect the HIOKI 3440 Series Temperature HiTESTER to measure changes in the motor

temperature and acquire data as parameters for motor evaluation

RS-232C interface)

to acquire data while displaying the temperature.

6

Motor

Perform harmonic analysis from the low-speed rotation range of motors

2

Vector display of electrical angles of motors

• Display vectors including that of the phase angle and electrical angle

( θ) of fundamental wave voltage and current. The measured data can

be used as parameters to calculate the Ld and Lq values.

3

Load/

motor

Motor

Induced voltage

Rotation synchronization

signal

Motor

Torque

sensor

Load/

motor

Inverter

DC power

supply