background image

Toshiba'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.

The JK720 series is available in the following
enclosed ratings:
     720 amps
     2300-4800 Volts
     Up to 6,000 HP

Note:  An Incoming Section is required for the JK720
FVNR, FVR and RVAT type starters, transformer
feeders and capacitor switching controllers.

Current Rating

 * Actual limits based on your specific application parameters.
All specifications subject to change without notice.

Short Circuit & Withstand Capability

Application Table

 For transformer and capacitor load switching applications, consult factory.

MEDIUM VOLTAGE CONTROLLERS

JK720 Series

Interrupting

Capacity

(Symmetrical

Amperes)

Interrupting

Capacity

(Symmetrical

MVA)

Short Time

Capability

30 Seconds

(Amperes)

Short Time

Capability

1 Second

(Amperes)

Dielectric

Withstand

1 Minute

(kV)

Impulse

Voltage

Withstand

(kV)

50,000

@ 2.3 - 4.6 kV

200 @ 2.3 kV
350 @ 4.0 kV
400 @ 4.6 kV

4320

10,800

AC 13.25   

DC 19 

60

Maximum Horsepower at Utilization Voltage

2300 Volts, 3 Phase

4200 Volts, 3 Phase

 0.8 PF   1.0 PF

  0.8 PF   1.0 PF

720

3000      3500

3000

5500      6000

5500

650

2750      3000

2750

5000      5500

5000

600

2500      2750

2500

4500      5000

4500

Induction 

Motors

Enclosed 

Maximum 

Continuous 

Current 

(Amperes)

Synchronous 

Motors

Induction 

Motors

Synchronous 

Motors

Enclosure Type

Maximum Continuous 

Amperes*

One-High Controller

 Type 1 Ventilated

720

 Type 1 Non-Ventilated

650

 Type 12 & 3R

600

Содержание JK400 Series

Страница 1: ...JK Series POWER DISTRIBUTION 400A 720A Fixed Type Medium Voltage Motor Controllers ...

Страница 2: ...er ISO 9001 standards in the same manufacturing facility as Toshiba motors and drives The components in this new series have been arranged in the most logical manner to produce a tightly designed unit and in the full voltage type starters uses no internal power cables This streamlined space saving design provides the ultimate in maintenance ease and safety features These medium voltage controllers...

Страница 3: ...Continuous Amperes Upper Controller in a Two High Stacking Arrangement Type 1 Ventilated 360 360 320 Type 1 Non Ventilated 320 320 280 Type 12 3 3R 310 310 280 MEDIUM VOLTAGE CONTROLLERS JK400 Series Interrupting Capacity Symmetrical Amperes Interrupting Capacity Symmetrical MVA Short Time Capability 30 Seconds Amperes Short Time Capability 1 Second Amperes Dielectric Withstand 1 Minute kVAC Impul...

Страница 4: ... and Stop Push Buttons Run and Off Pilot Lights Single Phase Ammeter Control Power Transformer with Primary and Secondary Fuses Thermal Bimetallic Overload Relay Separate Medium and Low Voltage Compartments Built in Run Test Circuit Mechanical and Electrical Interlocks Isolated Low Voltage Compartment The low voltage section is oversized and is at a convenient height This section is isolated from ...

Страница 5: ...le For transformer and capacitor load switching applications consult factory MEDIUM VOLTAGE CONTROLLERS JK720 Series Interrupting Capacity Symmetrical Amperes Interrupting Capacity Symmetrical MVA Short Time Capability 30 Seconds Amperes Short Time Capability 1 Second Amperes Dielectric Withstand 1 Minute kV Impulse Voltage Withstand kV 50 000 2 3 4 6 kV 200 2 3 kV 350 4 0 kV 400 4 6 kV 4320 10 80...

Страница 6: ...ely located NC punches holes With exception of welded front frame cubicle should be capable of being assembled without a fixture 2 2 5 All doors shall be minimum 12 gauge steel 2 2 6 All structural components shall be given a corrosion resistant finish by either galvanizing or painting Galvanized steel shall be used only for internal structural members or panels 2 2 7 All panels used to mount low ...

Страница 7: ... and a control power transformer with primary fuses Optionally a second control or potential transformer with primary fuses may be provided 4 1 2 Internal power connections between power components shall be made using either high voltage cable or bus bars 4 1 3 Connection of customer s outgoing load cables shall be made to terminals mounted on the rear of the medium voltage contactor It shall be p...

Страница 8: ...es through the viewing window with the medium voltage door closed Also there shall be a mechanical operated flag visible through the window in the medium voltage door displaying the switch in the OPEN position with the door closed 4 2 7 A shutter mechanism shall automatically isolate the medium voltage compartment from all live parts when the switch is opened 4 2 8 The external operating handle fo...

Страница 9: ...he mechanical interlock in 4 5 1 This interlock shall switch off control power to the vacuum contactor at any isolating switch position other than fully opened or fully closed 4 5 4 A mechanical interlock shall be provided between the isolation switch and the medium voltage compartment door This interlock shall prevent the door from being opened unless the isolating switch is in the fully open pos...

Страница 10: ...uous Amperes 46 and 61 One high controller Max Continuous Amperes 90 One high controller or Lower controller in a Two high stacking arrangement Max Continuous Amperes Upper controller in a Two high stacking arrangement NEMA 1 Ventilated 360 360 320 NEMA 1 Non ventilated 320 320 280 NEMA 12 3R 310 310 280 5 1 3 Short Time Thermal Rating 400 Ampere Contactor 2400A for 30 seconds 6000A for 1 second 5...

Страница 11: ...All doors shall be minimum 12 gauge steel 2 2 6 All structural components shall be given a corrosion resistant finish by either galvanizing or painting Galvanized steel shall be used only for internal structural members or panels 2 2 7 All panels used to mount low voltage devices shall be painted white for superior visibility Panels shall be easily removable or swing out to provide access to horiz...

Страница 12: ...s Optionally a second control or potential transformer with primary fuses may be provided 4 1 2 Internal power connections between power components shall be made using either high voltage cable or bus bars 4 1 3 Connection of customer s outgoing load cables shall be made to terminals mounted on the left side of the medium voltage compartment It shall be possible to terminate outgoing load cables w...

Страница 13: ...gh the viewing window with the medium voltage door closed Also there shall be a mechanical operated flag visible through the window in the medium voltage door displaying the switch in the OPEN position with the door closed 4 2 7 A shutter mechanism shall automatically isolate the medium voltage compartment from all live parts when the switch is opened 4 2 8 The external operating handle for the is...

Страница 14: ...l be provided between the vacuum contactor and the isolation switch The interlock shall prevent the isolation switch from being opened or closed unless the main contacts of the contactor are opened 4 5 2 The interlock described in 4 5 1 shall also operate in a manner such that it will prevent the closing of the main contacts of the vacuum contactor unless the isolation switch is either fully opene...

Страница 15: ...ed and the secondary of the normal control power transformer is disconnected from the control circuit to prevent backfeeding the transformer 5 Ratings 5 1 Controllers shall be rated as follows 5 1 1 Interrupting Ratings Contactor 7 2kA 6 6kV Max Controller 50kA RMS Sym 5 0kV Max 200MVA 2 3kV 350MVA 4 0kV 400MVA 4 6kV 5 1 2 Continuous Current Ratings N 1 Enclosure Ventilated 720A N 1 Enclosure Non ...

Страница 16: ......

Страница 17: ......

Страница 18: ......

Страница 19: ......

Страница 20: ......

Страница 21: ......

Страница 22: ......

Страница 23: ...designs are technologically innovative and our products are manufactured from start to end using only the highest quality foreign and domestic parts Product Warranty Toshiba offers a comprehensive warranty program on its full line of industrial products Consult your salesperson or the factory for specific information Need to Know More Be sure to visit our website located at www tic toshiba com for...

Отзывы: