ToshibaメーカーJK Seriesの使用説明書/サービス説明書
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JK Series POWER DISTRIBUTION 400A & 720A Fixed T ype Medium V oltage Motor Contr ollers.
The low voltage section is oversized and is at a convenient height. This section is isolated from the medium voltage section and includes: Thermal Overload Protection Relay Pilot Lights (door mounted).
T oshiba's JK400 series complies with EEMAC, NEMA, UL and CSA standards and is available in non-reversing and reversing full voltage, autotrans- former , reactor , multi-speed, synchronous and wound rotor configurations. Latched contactors are also available.
MEDIUM VOL T AGE CONTROLLERS JK720 Series The new JK720 Series of motor controller is the result of extensive research and development. This state-of-the-art controller was designed in Houston, T exas, and is currently being manufac- tured under ISO 9001 standards in the same manufacturing facility as T oshiba motors and drives.
T oshiba's JK720 series complies with EEMAC, NEMA, UL and CSA standards and is available in non-reversing and reversing full voltage, autotrans- former , reactor , multi-speed, synchronous and wound rotor configurations. Latched contactors are also available.
JK Series Product Specification 400A MEDIUM VOLTAGE FIXED CONTROLLER 1. Standards 1.1 Basic controller shall comply with NEMA ICS3-1993, Part 2 (ICS2-324) and UL 347 Standards.
2.4 Handling and Installation 2.4.1 Removable angles or eye bolts shall be pr ovided at the top of t he structure for lifting. 3. Pow er Bus 3.1 Horizontal power bus shall be located at the cent er rear of the cubicle, in the same location as other JK Series controllers.
4.2 Bolted Pressure Isolation Switch 4.2.1 A Toshiba type JK fixed mounted, gang-oper ated isolation switch shall be provided with each controller to isolate the medium vo ltage compartment from the power source. 4.2.2 The switch shall be directly driven by an externally operable handle mounted on the right hand flange of the cubicle.
4.3.3 Power connections from the isolation switch to the main power fuses shall be made using bus bar. Connections from the contactor through the current transformers to the outgoing load terminals shall be made using power cable furnished by others. 4.
5. Ratings 5.1 Controller shall be rated as follows: 5.1.1 Interrupting Ratings: 400 Ampere Controller: - contactor 7.0kA @ 6.9kV - fused controller 50kA RMS Sym. @ 7.2kV 200MVA @ 2.3kV 350MVA @ 4.0kV 400MVA @ 4.6kV 570MVA @ 6.6kV 5.1.2 Continuous Thermal Ratings: 400 Ampere Controller: Enclosure type Max.
JK Series Product Specification 720A MEDIUM VOLTAGE FIXED CONTROLLER 1. Standards 1.1 Basic controller shall comply with NEMA ICS3-1993, Part 2 (ICS2-324) and UL 347 Standards.
2.4.1 Removable angles or eye bolts shall be pr ovided at the top of t he structure for lifting. 2.4.2 Optional removable sill channels shall be available. 3. Pow er Bus 3.1 Horizontal power bus shall be located at the cent er rear of the cubicle, in the same location as other JK Series controllers.
4.2 Bolted Pressure Isolation Switch 4.2.1 A fixed mounted, gang-operated isolation sw itch shall be provided with each controller to isolate the medium voltage compartment from the power source. 4.2.2 The switch shall be directly driven by an externally operable handle mounted on the right hand flange of the cubicle.
4.3.3 Power connections from the isolation switch to the contactor shall be made using bus bar. Connections from the contactor through the curr ent transformers to the outgoing load terminals shall be made using power cable. 4.3.4 The contactor shall be supplied with an optional mechanical latch with provisions for manual or electrical trip.
4.5.7 An electrical interlock shall be provided to ensure the isolation switch does not open with the control power transformer under load. This interlock shall be designed such that during switch opening, the transformer secondary is disconnected prior to the opening of the switch blades.
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Medium V oltage Motor G7 Drive *pacjKSBROCH050218* ADJUST ABLE SPEED DRIVES MOTORS CONTROLS UPS INSTRUMENT A TION PLC INDUSTRIAL DIVISION 13131 W est Little Y ork Road, Houston, T exas 77041 T el 713/466-0277 Fax 713/466-8773 US 800/231-1412 Canada 800/872-2192 Mexico 01/800/527-1204 www .
デバイスToshiba JK Seriesの購入後に(又は購入する前であっても)重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります:
Toshiba JK Seriesをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはToshiba JK Seriesの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Toshiba JK Seriesの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Toshiba JK Seriesで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Toshiba JK Seriesを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はToshiba JK Seriesの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Toshiba JK Seriesに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちToshiba JK Seriesデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。