Toshiba XT JK Series Bedienungsanleitung

JK Series

POWER DISTRIBUTION

400A & 720A

Fixed Type

Medium Voltage

Motor Controllers

The low voltage section is oversized and is at a

convenient height. This section is isolated from

themediumvoltagesectionandincludes:

ThermalOverloadProtection Relay

Pilot Lights (door mounted)

Push Buttons (door mounted)

SinglePhase Ammeter (door mounted)

CPT Secondary Fuses

ControlTerminal Pointsfor CustomerConnections

Timers(for ReducedVoltageControllers)

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

Isolated Low Voltage Compartment

Visible, Bolted Pressure, Isolation Switch

StandardFeatures:

Bolted Pressure Isolation Switch

Less Resistance

Less Wear

Zero Insertion Pressure

Mechanical Interlocking System

Reduced Voltage Autotransformer

Controller

AdditionalStandard Features:

Shorting and Run, 400Ampere, Vacuum

Contactors

NEMAMedium Duty, Three Winding, Copper

Wound Autotransformer with 50%, 65%, and

80% Taps

Adjustable Solid State Transition Timer

Adjustable Solid State Incomplete Sequence

Timer

TheJK400 Series of motor controller is the result

ofextensive research anddevelopment. This

state-of-the-artcontroller was designed in

Houston,Texas, and is currently being manufac-

turedunderISO9001standardsinthesame

manufacturingfacilityasToshiba motors and

drives. Thecomponentsinthisnewserieshave

beenarrangedinthemostlogicalmanner to

produce a tightly designed unit, and in the full

voltagetypestarters,usesnointernalpower

cables. This streamlined, space saving design

providestheultimate in maintenance ease and

safetyfeatures.

Thesemedium voltagecontrollersare available in

across-the-lineor reduced voltage modelsforthe

controlofinduction, wound rotor or synchronous

motors, transformers, or capacitors up to 6.6kV.

All controllers are designed to meet NEMA Class

E2requirements. Thesefixedtypecontrollers

areavailableinone or two high enclosures with

thefollowing standard features:

Standard Features Full & Reduced

Voltage Controllers

Toshiba Medium VoltageVacuum Contactor400A

Bolted Pressure Switch Connections

30"WideFootprint(EveninaTwoHigh Design)

Rigid 11 Gauge Steel Frame

Front Accessible Main Bus

CurrentTransformers

CurrentLimiting,High Interrupting Capacity,

"R" Rated Motor Starting Fuses

Start and Stop Push Buttons

Run and Off Pilot Lights

Single Phase Ammeter

ControlPower Transformer withPrimary

and Secondary Fuses

ThermalBimetallic Overload Relay

 SeparateMediumandLowVoltage

Compartments

Built-in Run/Test Circuit

Mechanical and Electrical Interlocks

If UL or CUL is required, specify when ordering.

Consult Factory for applicable models and options.

MEDIUM VOLTAGE CONTROLLERS

JK400 Series

Toshiba'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.

The JK400 series is available in the following

enclosed ratings:

360 amps

2300-6600 Volts

Up to 5,000 HP

Short Circuit & Withstand Capability

Application Table

For transformer and capacitor load switching applications, consult factory.

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

Current Rating

Enclosure Type

Maximum

Continuous

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

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)

Impulse

Voltage

Withstand

(kV)

50,000

@ 2.3 - 6.6 kV

200 @ 2.3 kV

350 @ 4.0 kV

400 @ 4.6 kV

570 @ 6.6 kV

2400 6000 18.2 60

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

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

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

Synchronous

Motors Induction

Motors

Enclosed

Maximum

Continuous

Current

(Amperes)

Maximum Horse

ower at Utilization Volta

Synchronous

Motors Induction

Motors

Synchronous

Motors Induction

Motors

MEDIUM VOLTAGE CONTROLLERS

JK720 Series

ThenewJK720Seriesofmotorcontroller is the

resultof extensive researchanddevelopment.

Thisstate-of-the-art controller was designed in

Houston,Texas, and is currently being manufac-

turedunderISO9001standardsinthesame

manufacturingfacilityasToshiba motors and

drives. Thecomponentsinthisnewserieshave

beenarrangedinthemostlogicalmanner to

produce a tightly designed unit. This stream-

lined,spacesaving design provides the ultimate

inmaintenanceeaseandsafety features.

Thesemedium voltagecontrollersare available in

across-the-lineor reduced voltage modelsforthe

controlofinduction, wound rotor or synchronous

motors, transformers, or capacitors up to 4.8kV.

All controllers are designed to meet NEMA Class

E2requirements. Thesefixedtypecontrollers

areavailablein one high enclosures with the

followingstandard features:

Standard Features Full & Reduced

Voltage Controllers

Toshiba Medium VoltageVacuum Contactor 720A

Bolted Pressure Switch Connections

36" Wide Footprint

Rigid 11 Gauge Steel Frame

Front Accessible Main Bus

CurrentTransformers

CurrentLimiting,High Interrupting Capacity,

"R" Rated Motor Starting Fuses

Start and Stop Push Buttons

Run and Off Pilot Lights

Single Phase Ammeter

ControlPower Transformer withPrimary

and Secondary Fuses

ThermalBimetallic Overload Relay

 SeparateMediumandLowVoltage

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

themediumvoltagesectionandincludes:

ThermalOverloadProtection Relay

Pilot Lights (door mounted)

Push Buttons (door mounted)

Single Phase Ammeter (door mounted)

CPT Secondary Fuses

ControlTerminal Pointsfor Customer Connections

Timers (for Reduced VoltageControllers)

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

StandardFeatures:

Bolted Pressure Isolation Switch

Less Resistance

Less Wear

Zero Insertion Pressure

Mechanical Interlocking System

Reduced Voltage Autotransformer

Controller

AdditionalStandard Features:

Shorting (400A) and Run (720A), Vacuum

Contactors

NEMAMedium 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.

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

C 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

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. 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.

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 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 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

200MVA @ 2.3kV

350MVA @ 4.0kV

400MVA @ 4.6kV

570MVA @ 6.6kV

5.1.2 Continuous Thermal Ratings:

400 Ampere Controller:

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

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

5.1.4 Impulse Withstand:

400 Ampere Controller: 60kV

1.2 x 50 microsecond wave

Rev. 2, 2/16/1999

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