
22
KHA3000
Wiring Measurement Circuits
This section explains how to wire single-phase two-wire, single-phase three-wire, three-phase
three-wire and three-phase four-wire circuits. An impedance network is used for a flicker test.
Because the impedance network is not used for a harmonic current test except for some special
cases, connect the AC power supply directly to the SOURCE terminals of this product.
Input phases (channels) are L1, L2 and L3. L1 is the reference phase for measurement. Be
sure to wire L1.
Parts to be prepared by the customer
The customer is requested to prepare wires used to connect between devices of the
measurement circuit and relay outlets.
Wire thickness
Select a wire thickness according to the input current of the EUT. It is recommended to use
wire with a nominal sectional area of 8 mm
2
or larger. Use as short a wire as possible. Kikusui
recommends a wire length of 1.5 m or shorter. For the test system, note the IEC 61000-4-7
requirements (voltage drop by wire impedance).
Single-phase Two-wire Circuit
Wiring Method
Use the L1, N and G terminals in the input section on the rear of this product. Connect them
according to the table on the next page. If LIN is not used, connect the wires directly from the
output terminals of the AC power supply to the SOURCE terminals in the input section of this
product. When the EUT uses a power cord with a plug, connect the wires to the LOAD
terminals via a relay outlet. Match the terminal polarities (L, N, G) with those of the relay
outlet.
WARNING
•
This work has a risk of electric shock. For the equipment used for the measurement
circuit, be sure to disconnect the power cord from the outlet, turn off the switch on
the switchboard to which the power cord is connected, and turn off the POWER
switch.
See
A
V
L
N
G
L
N
G
N
G
L1
AC power
supply
Impedance
network
KHA3000
EUT
SOURCE
LOAD
CAUTION
Terminal G of this product is not a protective conductor terminal. It is not grounded even if
the wire is connected to terminal G. For terminals G and N, the respective SOURCE and
LOAD terminals are short-circuited internally.
Содержание KHA3000
Страница 20: ...20 KHA3000...
Страница 35: ...Overview This chapter provides an overview of this product and explains the options for the product 1...
Страница 42: ...42 KHA3000 Options...
Страница 49: ...Wiring Measurement Circuits This chapter explains the wiring of measurement circuits and the control circuit 3...
Страница 70: ...70 KHA3000 Connecting Communication Cables...
Страница 71: ...System Setup This chapter explains how to turn on the power and how to set up the system 4...
Страница 91: ...Setting the Harmonic Test This chapter explains how to set the test conditions for the harmonic current test 5...
Страница 120: ...120 KHA3000 Controlling the AC Power Supply...
Страница 182: ...182 KHA3000 Checking the AC Power Supply and Repeatability...
Страница 247: ...Other Measurements This chapter explains basic measurement FFT analyzer and in rush current measurement 11...
Страница 349: ...Maintenance This chapter explains how to clean and inspect this product 14...
Страница 352: ...352 KHA3000 Cleaning and Checking...
Страница 353: ...Specifications This chapter explains the specifications of this product 15...
Страница 390: ...390 KHA3000...
Страница 391: ......