Fuji Electric frenic mini series User Manual (English)

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A-12

App.B Japanese Guideline for Suppressing Harmonics by

Customers Receiving High Voltage or Special High

Voltage

- Disclaimer: This document provides you with a translated summary of the Guideline of the Ministry of

International Trade and Industry (September 1994). It is intended to apply to the domestic market only. It is only

for reference for the foreign market. -

Agency of Natural Resource and Energy of Japan published the following two guidelines for suppressing

harmonic noise in September 1994.

(1) Guideline for suppressing harmonics in home electric and general-purpose appliances

(2) Guideline for suppressing harmonics by customers receiving high voltage or special high voltage

Assuming that electronic devices generating high harmonics will be increasing, these guidelines are to

establish regulations for preventing high frequency noise interference on devices sharing the power source.

These guidelines should be applied to all devices that are used on the commercial power lines and generate

harmonic current. This section gives a description limited to general-purpose inverters.

B.1 Application to general-purpose inverters

[ 1 ] Guideline for suppressing harmonics in home electric and general-purpose appliances

Our three-phase, 230V inverters of 5 HP or less (FRENIC-Mini series) were the products of which were

restricted by the "Guideline for Suppressing Harmonics in Home Electric and General-purpose

Appliances" (established in September 1994 and revised in October 1999) issued by the Ministry of

Economy, Trade and Industry.

The above restriction, however, was lifted when the Guideline was revised in January 2004. Since then,

the inverter makers have individually imposed voluntary restrictions on the harmonics of their products.

We, as before, recommend that you connect a reactor (for suppressing harmonics) to your inverter.

[ 2 ] Guideline for suppressing harmonics by customers receiving high voltage or special high

voltage

Unlike other guidelines, this guideline is not applied to the equipment itself such as a general-purpose

inverter, but is applied to each large-scale electric power consumer for total amount of harmonics. The

consumer should calculate the harmonics generated from each piece of equipment currently used on the

power source transformed and fed from the high or special high voltage source.

(1) Scope of regulation

In principle, the guideline applies to the customers that meet the following two conditions:

- The customer receives high voltage or special high voltage.

- The "equivalent capacity" of the converter load exceeds the standard value for the receiving voltage

(50 kVA at a receiving voltage of 6.6 kV).

Appendix B.2 [1] "Calculation of equivalent capacity (Pi)" gives you some supplemental information with

regard to estimation for the equivalent capacity of an inverter according to the guideline.

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General

Output Frequency	0.1 to 400 Hz
Control Method	V/F control, Sensorless vector control
Cooling Method	Fan cooling
Model	Frenic Mini series
Overload Capacity	150% for 60 seconds
Protection	Overcurrent, Overvoltage, Undervoltage, Overheating, Short circuit
Communication	RS-485 (Modbus RTU)
Ambient Temperature	-10°C to +50°C (non-freezing)
Humidity	95% (non-condensing)
Altitude	Up to 1000 m above sea level
Input Voltage	200 to 240 VAC, 380 to 480 VAC
Braking Unit	Built-in (optional external for higher power models)