发明名称 |
Control of power supply to electric sauna heater |
摘要 |
Heating elements (1A1, 2A1 etc.) are divided into two gps. assigned respectively to the heat storage mineral space (1) and hot air duct (2), served by three-phase AC supplies via separate contactors (6,7) and multipole relays (4,5). An auxiliary switch (12) in conjunction with store and duct thermostats (3, 11) provides sequential switching of the relays to supply max. current to the duct heaters (2A1-2A3), 2B1-2B3) for a period before the store heaters (1A1-1A3, 1B1-1B3) are stepped-up from half to full power.
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申请公布号 |
DE4008931(A1) |
申请公布日期 |
1990.10.04 |
申请号 |
DE19904008931 |
申请日期 |
1990.03.20 |
申请人 |
OY HELO-TEHTAAT - HELO FACTORIES LTD., HELSINKI, FI |
发明人 |
PERAELAE, REIJO, HANGONKYLAE, FI;KIVIMAA, ANTTI, KAUNIAINEN, FI |
分类号 |
A61H33/06;G05D23/275 |
主分类号 |
A61H33/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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