Panasonic MINAS A5-series Operating Instructions Manual page 388

7. Options
Reactor
Harmonic restraint
On September, 1994, "Guidelines for harmonic restraint on heavy consumers who re-
ceive power through high voltage system or extra high voltage system" and "Guidelines
for harmonic restraint on household electrical appliances and general-purpose articles"
established by the Agency for Natural Resources and Energy of the Ministry of Economy,
Trade and Industry (the ex-Ministry of International Trade and Industry). According to
those guidelines, the Japan Electrical Manufacturers' Association (JEMA) have prepared
technical documents (procedure to execute harmonic restraint: JEM-TR 198, JEM-TR
199 and JEM-TR 201) and have been requesting the users to understand the restraint
and to cooperate with us. On January, 2004, it has been decided to exclude the general-
purpose inverter and servo driver from the "Guidelines for harmonic restraint on house-
hold electrical appliances and general-purpose articles". After that, the "Guidelines for
harmonic restraint on household electrical appliances and general-purpose articles" was
abolished on September 6, 2004.
We are pleased to inform you that the procedure to execute the harmonic restraint on
general-purpose inverter and servo driver was modified as follows.
1. All types of the general-purpose inverters and servo drivers used by specific users are
under the control of the "Guidelines for harmonic restraint on heavy consumers who re-
ceive power through high voltage system or extra high voltage system". The users who
are required to apply the guidelines must calculate the equivalent capacity and har-
monic current according to the guidelines and must take appropriate countermeasures
if the harmonic current exceeds a limit value specified in a contract demand. (Refer to
JEM-TR 210 and JEM-TR 225.)
2. The "Guidelines for harmonic restraint on household electrical appliances and general-
purpose articles" was abolished on September 6, 2004. However, based on conven-
tional guidelines, JEMA applies the technical documents JEM-TR 226 and JEM-TR
227 to any users who do not fit into the "Guidelines for harmonic restraint on heavy
consumers who receive power through high voltage system or extra high voltage sys-
tem" from a perspective on enlightenment on general harmonic restraint. The purpose
of these guidelines is the execution of harmonic restraint at every device by a user as
usual to the utmost extent.
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