Toshiba XT JK User Manual

POWER DISTRIBUTION

JK Series

400A & 720A

Fixed Type

Medium Voltage

Motor Controllers

MEDIUM VOLTAGE CONTROLLERS

JK400 Series

The JK400 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 manufactured under 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 are available in across-the-line or reduced voltage models for the control of induction, wound rotor or synchronous motors, transformers, or capacitors up to 6.6kV . All controllers are designed to meet NEMA Class E2 requirements. These fixed type controllers are available in one or two high enclosures with the following standard features:

Standard Features Full & Reduced Voltage Controllers

 T oshiba Medium V oltage V acuum Cont actor 400A  Bolted Pressure Switch Connections  30" Wide Footprint (Even in a T wo High Design)  Rigid 1 1 Gauge S teel Frame  Front Accessible Main Bus  Current Transformers  Current Limiting, High Interrupting Capacity ,

"R" Rated Motor Starting Fuses

 Start and Stop Push Buttons  Run and Off Pilot Lights  Single Phase Ammeter  Control Power Transformer with Primary

and Secondary Fuses

 Thermal Bimetallic Overload Relay  S eparate Medium and Low Voltage

Compartments

 Built-in Run/T est 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 the medium voltage section and includes: Thermal Overload Protection Relay Pilot Lights (door mounted) Push Buttons (door mounted) Single Phase Ammeter (door mounted) CPT Secondary Fuses Control T erminal Point s for Customer Connections Timers (for Reduced V oltage Controllers) Standard Options: Metering & Metering Switches Ground Fault Protection Relay Phase Sequence Protection Relay RTD Monitor/Relay Solid State (2E) Protection Relay (Overload/Single Phase) S2E21 Multi-funtion Protection Relay

Visible, Bolted Pressure, Isolation Switch

Standard Features: Bolted Pressure Isolation Switch Less Resistance Less Wear Zero Insertion Pressure Mechanical Interlocking System

Reduced Voltage Autotransformer Controller

Additional Standard Features: Shorting and Run, 400 Ampere, Vacuum Contactors NEMA Medium Duty, Three Winding, Copper Wound Autotransformer with 50%, 65%, and 80% Taps Adjustable Solid State Transition Timer Adjustable Solid State Incomplete Sequence Timer

If UL or CUL is required, specify when ordering. Consult Factory for applicable models and options.

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r

MEDIUM VOLTAGE CONTROLLERS

p

JK400 Series

Toshiba's JK400 series complies with EEMAC, NEMA, UL and CSA standards and is available in non-reversing and reversing full voltage, autotransformer, reactor, multi-speed, synchronous and wound rotor configurations. Latched contactors are also available.

The JK400 series is available in the following enclosed ratings: 360 amps 2300-6600 Volts Up to 5,000 HP

Current Rating

Maximum

Continuous

Enclosure Type

Type 1 Ventilated 360 360 320 Type 1 Non-Ventilated 320 320 280 Type 12, 3, 3R 310 310 280

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

Amperes*

46" and 61"

One-Hi

h Controlle

Maximum Continuous Amperes* 90" One-High Controller or Lower Controller in a Two-High Stacking

Arrangement

Maximum Continuous

Amperes*

Upper Controller in a Two-High

Stacking Arrangement

Short Circuit & Withstand Capability

Interrupting

Capacity

(Symmetrical

Amperes)

50,000

@ 2.3 - 6.6 kV

Interrupting

Capacity

(Symmetrical

MVA)

200 @ 2.3 kV 350 @ 4.0 kV 400 @ 4.6 kV 570 @ 6.6 kV

Short Time

Capability

30 Seconds

(Amperes)

2400 6000 18.2 60

Short Time

Capability

1 Second

(Amperes)

Dielectric

Withstand

1 Minute

(kVAC)

Impulse Voltage

Withstand

(kV)

Application Table

Enclosed

Maximum

Continuous

Current

(Amperes)

360 1500 1750 1500 2500 3000 2500 4000 5000 4000 320 1250 1500 1250 2250 2500 2250 3500 4500 3500 310 1250 1500 1250 2000 2500 2000 3500 4000 3500 280 1000 1250 1000 1750 2250 1750 3000 3500 3000

For transformer and capacitor load switching applications, consult factory.

2300 Volts, 3 Phase 4200 Volts, 3 Phase 6600 Volts, 3 Phase

Synchronous

Motors

0.8 PF 1.0 PF 0.8 PF 1.0 PF 0.8 PF 1.0 PF

Maximum Horse

Induction

Motors

Synchronous

ower at Utilization Voltage

Motors

Induction

Motors

Synchronous

Motors

Induction

Motors

MEDIUM VOLTAGE 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 manufactured under 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. This streamlined, space saving design provides the ultimate in maintenance ease and safety features.

These medium voltage controllers are available in across-the-line or reduced voltage models for the control of induction, wound rotor or synchronous motors, transformers, or capacitors up to 4.8kV . All controllers are designed to meet NEMA Class E2 requirements. These fixed type controllers are available in one high enclosures with the following standard features:

Standard Features Full & Reduced Voltage Controllers

 T oshiba Medium V oltage Vacuum Contactor 720A  Bolted Pressure Switch Connections  36" Wide Footprint  Rigid 1 1 Gauge S teel Frame  Front Accessible Main Bus  Current Transformers  Current Limiting, High Interrupting Capacity ,

"R" Rated Motor Starting Fuses

 Start 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/T est 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 the medium voltage section and includes: Thermal Overload Protection Relay Pilot Lights (door mounted) Push Buttons (door mounted) Single Phase Ammeter (door mounted) CPT Secondary Fuses Control T erminal Point s for Customer Connections Timers (for Reduced V oltage Controllers) Standard Options: Metering & Metering Switches Ground Fault Protection Relay Phase Sequence Protection Relay RTD Monitor/Relay Solid State (2E) Protection Relay (Overload/Single Phase) S2E21 Multi-funtion Protection Relay

Standard Features: Bolted Pressure Isolation Switch Less Resistance Less Wear Zero Insertion Pressure Mechanical Interlocking System

Reduced Voltage Autotransformer Controller

Additional Standard Features: Shorting (400A) and Run (720A), V acuum Contactors NEMA Medium Duty , Three Winding, Copper Wound Autotransformer with 50%, 65%, and 80% Taps Adjustable Solid State Transition Timer Adjustable Solid State Incomplete Sequence Timer

If UL or CUL is required, specify when ordering. Consult Factory for applicable models and options.

MEDIUM VOLTAGE CONTROLLERS

A

JK720 Series

Toshiba's JK720 series complies with EEMAC, NEMA, UL and CSA standards and is available in non-reversing and reversing full voltage, autotransformer, 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

Maximum Continuous

Enclosure Type

Type 1 Ventilated 720 Type 1 Non-Ventilated 650 Type 12 & 3R 600

Amperes*

One-High Controller

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

Short Circuit & Withstand Capability

Interrupting

Capacity

(Symmetrical

Amperes)

50,000

@ 2.3 - 4.6 kV

Interrupting

Capacity

(Symmetrical

MVA)

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

Short Time

Capability

30 Seconds

(Amperes)

4320 10,800

Short Time

Capability

1 Second

(Amperes)

Application Table

Enclosed

Maximum

Continuous

Current

(Amperes)

720 3000 3500 3000 5500 6000 5500 650 2750 3000 2750 5000 5500 5000 600 2500 2750 2500 4500 5000 4500

For transformer and capacitor load switching applications, consult factory.

0.8 PF 1.0 PF 0.8 PF 1.0 PF

Maximum Horsepower at Utilization Voltage

2300 Volts, 3 Phase 4200 Volts, 3 Phase

Synchronous

Motors

Induction

Motors

Synchronous

Motors

Dielectric

Withstand

1 Minute

(kV)

C 13.25 DC 19

Induction

Motors

Impulse Voltage

Withstand

(kV)

60

1. Standards

1.1 Basic controller shall comply with NEMA ICS3-1993, Part 2 (ICS2-324) and UL 347 Standards. Basic controller can be UL Listed and CSA Certified.

2. Structure

2.1 Dimensions

FVNR One-high - 30"W x 36"D x 46"H (no bus, small LV compartment) FVNR One-high - 30"W x 36"D x 61"H (bus provision, large LV compartment) FVNR One-high - 30"W x 36"D x 90"H (bus provision, empty upper MV compartment) FVNR Two-high - 30"W x 36"D x 90"H RVAT (up to 1250HP) - 36"W x 36"D x 90"H RVAT (1250HP-4000HP) - 42"W x 36"D x 90"H

2.2 Fabrication

2.2.1 11 gauge frame with 16 gauge side, back and top sheets.

2.2.2 Front of cubicle to be an all-welded assembly. Remainder of frame to be bolted construction.

JK Series Product Specification

400A MEDIUM VOLTAGE FIXED CONTROLLER

2.2.3 Back and top sheets to be removable for easy access for assembly and wiring.

2.2.4 Basic dimensions and squareness of cubicle to be controlled by accurately located NCpunches 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 voltage devices shall be painted white for superior visibility. Panels shall be easily removable or swing-out to provide access to horizontal bus mounted in the middle rear of the cubicle.

2.3 General Arrangement of Components

2.3.1 Medium voltage compartments, low voltage compartments and power bus compartments shall be isolated by grounded steel barriers.

2.3.2 Complete front accessibility to all components shall be provided for installation against walls or for back-to-back arrangements.

2.3.3 Low voltage components shall be located so that components are accessible with medium voltage doors closed. Low voltage compartment shall be sized with consideration to mounting commonly used devices.

2.4 Handling and Installation

2.4.1 Removable angles or eye bolts shall be provided at the top of the structure for lifting.

3. Power Bus

3.1 Horizontal power bus shall be located at the center rear of the cubicle, in the same location as other JK Series controllers.

3.2 Horizontal power bus ratings of 1200 and 2000 amperes are available. Bus sizes shall match those provided in other JK Series controllers.

3.3 Horizontal power bus shall be braced for 50kA RMS symmetrical.

3.4 Horizontal power bus shall be tin plated as standard with insulated bus and silver plating optional.

3.5 Bare copper 1/4 x 2 inch horizontal ground bus shall be available and the location shall match other JK Series controllers.

3.6 Vertical power bus feeding 400 ampere controllers shall be 1/4 x 1-1/4 inch tin plated copper. Insulated bus and silver plating are optional.

3.7 Horizontal power bus shall be front accessible by removing or swinging open a panel.

4. Medium Voltage Controllers - 400 Amperes

4.1 Medium Voltage Controller Compartment

4.1.1 The medium voltage controller compartment for controllers rated 400 amperes shall consist of an isolation switch (4.2), a fixed mounted vacuum contactor (4.3), three fixed mounted power fuses (4.4), three current transformers 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 possible to terminate outgoing load cables with the removal of the horizontally mounted power fuses. Sufficient wire bending space shall be provided for terminating shielded cables as large as 1-2/0 per phase, or unshielded cables as large as 1-350MCM per phase, top or bottom entry.

4.1.4 A zero sequence current transformer for ground fault sensing when required shall be provided. It shall be located within the MV compartment where customer’s load cable can be conveniently passed through the current transformer window prior to termination.

4.1.5 Three current transformers for metering and relaying shall be provided. These shall be of the window type (or bar type as option) with burden capacity as required for operating the various meters and relays.

4.1.6 Control power and optional potential transformers shall be of the encapsulated type with primary fuses. Primary side of transformers shall be wired to the load side of the main controller power fuses. Transformers shall be arranged to provide easy access for replacement of primary fuses.

4.2 Bolted Pressure Isolation Switch

4.2.1 A Toshiba type JK fixed mounted, gang-operated isolation switch 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. The handle shall provide positive indication of the position of the switch.

4.2.3 The switch mechanism shall be designed such that in the closed position it provides the equivalent of a bolted pressure joint at both ends of the movable blades, rather than relying on spring pressure.

4.2.4 The line side of the switch shall be bus connected to the main horizontal power bus or to the incoming terminals of the controller. The load side of the switch shall be bus connected to the main controller power fuses.

4.2.5 The switch blades shall automatically ground the line side of the power fuses when the switch is opened. This allows any stored energy in the controller load circuit to be discharged by closing the contactor using test power.

4.2.6 It shall be possible to visually confirm that the switch blades are open and grounded by viewing the blades 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 for the isolation switch shall be designed to accept up to three external padlocks in the OFF position.

4.2.9 The switch shall be capable of interrupting the no-load current of the largest control power transformer which can be connected to it. The interrupting capability of the switch shall be a minimum of 0.4 amperes at 110% of rated line voltage.

4.2.10 The switch shall be rated as follows:

400 amperes @ 7.2kV

4.2.11 The mechanical life of the switch and its operating mechanism shall be 10,000 operations minimum.

4.2.12 All switch current-carrying parts shall be silver plated. An optional tin-over-silver plated switch shall be available for use in paper mill applications.

4.3 Vacuum Contactor

4.3.1 The Toshiba HCV-5HA vacuum contactor shall be used in these controllers.

4.3.2 The contactor shall be bolted into the medium voltage compartment. It shall be arranged such that the power connections are front-accessible so it can be unbolted and removed if necessary for maintenance.

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.

4.3.4 The contactor shall be available with an optional mechanical latch with provisions for manual or electrical trip.

4.3.5 The contactor shall be mechanically and electrically interlocked with the isolation switch as described in the section on interlocking (4.5).

4.4 Power Fuses

4.4.1 The power fuses shall be arranged horizontally at the top of the contactor unit. In this position, the blown fuse indicators on the fuses shall be visible, through the viewing window, when the medium voltage door is closed.

4.4.2 The fuse unit shall include either single or double barrel power fuses, R-rated or E-rated, 3" diameter.

4.5 Interlocking

4.5.1 A mechanical interlock shall 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 opened or fully closed.

4.5.3 An electrical interlock shall be provided as a backup to the 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 position.

4.5.5 The interlock described in 4.5.4 shall be capable of being circumvented in the event emergency entrance to the controller is required. Circumventing the interlock shall require two separate and distinct operations and shall require the use of a tool.

4.5.6 A mechanical interlock between the isolation switch and the medium voltage door shall be provided to prevent the isolating switch from being closed when the door is open. This interlock shall be capable of being circumvented only by the use of a tool.

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. Also, the isolating switch blades must close before the secondary load is reconnected.

4.5.8 An electrical interlock shall be provided to prevent the vacuum contactor from being closed using external test power unless the isolation switch is fully opened and the secondary of the normal control power transformer is disconnected from the control circuit to prevent backfeeding the transformer.

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

5.1.2 Continuous Thermal Ratings:

400 Ampere Controller:

200MVA @ 2.3kV 350MVA @ 4.0kV 400MVA @ 4.6kV 570MVA @ 6.6kV

Enclosure type Max. Continuous

Amperes

46” and 61” One-high

controller

Max. Continuous

Amperes

90” One-high controller or

Lower controller in a Two-

high stacking

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

5.1.4 Impulse Withstand:

400 Ampere Controller: 60kV

1.2 x 50 microsecond wave

Rev. 2, 2/16/1999

1. Standards

1.1 Basic controller shall comply with NEMA ICS3-1993, Part 2 (ICS2-324) and UL 347 Standards. Basic controller can be UL/CUL Listed.

2. Structure

2.1 Dimensions

Across-the-Line (one-high) - 36"W x 36"D x 90"H Reduced Voltage Autotransformer - (2) 36"W x 36"D x 90"H

2.2 Fabrication

2.2.1 11 gauge frame with 16 gauge side, back and top sheets.

2.2.2 Front of cubicle to be an all-welded assembly. Remainder of frame to be bolted construction.

2.2.3 Side, back and top sheets to be removable for easy access for assembly and wiring.

2.2.4 Basic dimensions and squareness of cubicle to be controlled by accurately located NCpunches holes. With exception of welded front frame, cubicle should be capable of being assembled without a fixture.

JK Series Product Specification

720A MEDIUM VOLTAGE FIXED CONTROLLER

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 voltage devices shall be painted white for superior visibility. Panels shall be easily removable or swing-out to provide access to horizontal bus mounted in the rear of the cubicle.

2.3 General Arrangement of Components

2.3.1 Medium voltage compartments, low voltage compartments, power bus compartments and field conductor wireways shall be isolated by grounded steel barriers.

2.3.2 Complete front accessibility to all components shall be provided for installation against walls or for back-to-back arrangements.

2.3.3 Low voltage components shall be located so that components are accessible with medium voltage door closed. Low voltage compartment shall be sized with consideration to mounting commonly used devices.

2.4 Handling and Installation

2.4.1 Removable angles or eye bolts shall be provided at the top of the structure for lifting.

2.4.2 Optional removable sill channels shall be available.

3. Power Bus

3.1 Horizontal power bus shall be located at the center rear of the cubicle, in the same location as other JK Series controllers.

3.2 Horizontal power bus ratings of 1200 and 2000 amperes shall be available. Bus sizes shall match those provided in other JK Series controllers.

3.3 Horizontal power bus shall be braced for 50kA RMS symmetrical.

3.4 Horizontal power bus shall be tin plated as standard with silver plating optional.

3.5 Bare copper 1/4 x 2 inch horizontal ground bus shall be available and the location shall match other JK Series controllers.

3.6 Vertical power bus feeding 720 ampere controllers shall be 3/8 x 2 inch tin plated copper. Silver plating shall be optional.

3.7 Horizontal power bus shall be front accessible by removing or swinging open a panel.

4. Medium Voltage Controllers - 720 Amperes

4.1 Medium Voltage Controller Compartment

4.1.1 The medium voltage controller compartment for controllers rated 720 amperes shall consist of an isolation switch (4.2), a fixed mounted vacuum contactor (4.3), three fixed mounted power fuses (4.4), three current transformers 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 left side of the medium voltage compartment. It shall be possible to terminate outgoing load cables without the removal of major components such as the vacuum contactor and power fuses. Sufficient wire bending space shall be provided for terminating shielded cables as large as 2500MCM per phase, top or bottom entry.

4.1.4 A zero sequence current transformer for ground fault sensing when required shall be provided. It shall be located such that factory installed internal power cables from all three phases shall pass through its window. Ground current sensors for Toshiba 2E ground fault module and Multilin ground fault relay shall be available as a minimum.

4.1.5 Three current transformers for metering and relaying shall be provided. These shall be of the window type with burden capacity as required for operating the various meters and relays.

4.1.6 Control power and optional potential transformers shall be of the encapsulated type with integral primary fuses. All transformers shall be rated 60kV BIL. Primary side of transformers shall be wired to the load side of the main controller power fuses. Transformers shall be arranged to provide easy access for replacement of primary fuses.

4.2 Bolted Pressure Isolation Switch

4.2.1 A fixed mounted, gang-operated isolation switch shall be provided with each controller to isolate the medium voltage compartment from the power source.