Siemens Automatic Star-Delta 3TE05 2AR0 Series Bedienungsanleitung

Operating Instructions

Automatic Star-Delta Starter

Extended Range (75kW-132kW)

3TE05..-2AR0

IS/IEC 60947-4-1

Technical Data

Enclosed Automatic Star delta Starter which is the

combination of 3TF Contactors, 3UA relay and 3RP Timer with

no derating upto +55°C, provides overload, single phasing

protection for three phase motors and IP54 for Enclosure.

1. OperatingVoltage‒415V ac

2. RatedInsulationVoltage‒

Main circuit : 690V

Auxiliary circuit : 690V

3. RatedImpulseVoltage‒

Main circuit : 8kV

Auxiliary circuit : 6kV

4. CoilVoltage‒415V ac

5. Permissibleambienttemperature‒

Operation : -5 to 40 °C

Temperature compensation : Upto 40 °C

6. Frequency‒50 Hz

7. IPProtection‒IP 54

8. CableincomingfromSupply‒

Top & Bottom both provisions

9. CableoutgoingtoMotor‒Bottom

10.Locking‒Middle lock with key

Rating MLFB

75kW 3TE05 94-2AR0

90kW 3TE05 95-2AR0

110kW 3TE05 96-2AR0

132kW 3TE05 97-2AR0

Installation

1. Enclosed Starter 3TE05 are Wall mounting type. Care

should be taken to avoid shocks and prolonged vibrations.

2. Refergure8forthemountingdimensionsandgure4

for permissible mounted angle.

3. "Mount on a plane surface by 4 x M10 bolts/studs,

secured by nuts with plain and spring washers."

4. Depending upon location of incoming and outgoing

cables remove corresponding rubber Grommets. Ensure

dust-proongbyusingpropercableglands.

5 SelectCorrectSizeofCablesasspeciedinselection

Table 1. Remove required length of insulation and using

thehardwarespecied(refertable2)attheconnection

terminals,xtheincomingandoutgoingcables.Tighten

thescrewsrmly.

6 Check that line and motor connections are done as per

wiringdiagram(Figure7)whichisalsopastedinsidethe

door.

7 Remove any wire cutting fallen into the Starter.

8 Connect Earthing conductor to terminals marked

Please read and understand these instructions before

installating, operating, or maintaining the equipment.

Keep for future reference

Danger

Hazardous voltage can cause death or serious injury.

Disconnect power before working on equipment.

Warning

Automatic Motor Restart.

Can cause death, serious injury or property damage.

Do not use automatic reset mode when unexpected automatic

restart of the motor can cause injury to persons or damage to

equipment.

Reliable functioning of the equipment is only ensured with

certiedcomponents.Commissioningandmaintenanceby

qualiedpersonnelonly.

NOTICE

This product has been designed for environment A. Use of this product

in environment B may cause unwanted electromagnetic disturbances

in which case the user may require to take adequate mitigation

measures.

Commissioning

1. Open the door by unlocking the

locks

2. Before switching ON, re-check

external connections.

3. Set Overload relay to 0.58 times the

rated motor current.

4. Set the dial of the Timer to an

approx. value of starting time of

Motor(preferablymorethan6secs)

A. Star-delta Timer setting

1. First Start the motor by pressing

Green push button, marked "I"

2. Measure time taken for it to reach

nearly rated speed or steady state

current(indicatedwhenmotorhum

reachesasteadypitch)

3. Stop the Motor, set Timer to this

measured value, by rotating the

Timer dial.

B. Relay Settings

1. For Closer protection set the

Overload Relay to the phase current

as measured by an ammeter.

2. In absence of Ammeter, use

procedure as given below:

a) Startthemotorandletitrun

for half an hour. Then gradually

reduce relay setting till it trips.

Set Relay at a slightly higher

value of this setting.

b) Allowresettimeofapprox.4

min. Press the blue knob on the

relay completely to reset the

relay.

c) Re-startmotoraftersome

time. If the relay does not trip,

consider it to be properly set. If it

trips follow step b with setting at

little higher value and recheck.

d) Overloadrelaycharacteristics

given below can be used to

estimate the average tripping

time at different multiples of set

current.

Caution:

1. Switch OFF the Starter, and

disconnect the main supply by

switching OFF the main switch

before doing any maintenance.

2. Under No Circumstances should

the Relay be set higher than phase

current i.e.. 0.58 times the rated

current on the motor nameplate.

3. If the Relay trip even when set

at the rated Motor current, the

suitability of the starter or relay for

the particular application should be

checked with the nearest Siemens

ofce.

4. Refer Table 1 for the Motor current

corresponding to the Motor rating.

Figure 2: Timer Adjustment

Figure 3: Relay setting Adjustment

Figure 4: Maximum permissible angle from

vertical plane

Table 1: Technical Details

Motor Rating

at 415V, 3ph,

50Hz

Motor Current "Type

(ASD)" Contactor Contactor Birelay

(Inbuilt)

Recommend-

ed Max.

Back-up HRC

Fuse rating

SIEMENS

make type

3NA

Recommended Cu

Cable with lugs in

sq. mm

Line

current

Phase

current MLFB Delta/Main Star Incoming Outgoing

HP kW IL(A) Iph(A) 3TF 3TF Relay

Range Type From

Supply To Motor

100 75 131 75.6 3TE05 94-2AR0 3TF49 3TF47 70-95A 3UA5800-8YZ1 160 50 25

125 90 156 90 3TE05 95-2AR0 3TF50 3TF47 70-95A 3UA5830-5B 160 70 35

150 110 189 109 3TE05 96-2AR0 3TF50 3TF50 95-120A 3UA5830-5D 200 95 35

180 132 227 132 3TE05 97-2AR0 3TF51 3TF50 115-180A 3UA6230-5B 250 120 50

* For Type-2 co-ordination chart, refer latest Price list of " LV switchgear - Motor control products"

Dial

Trip Curve

Figure 5: Operating Charateristics of 3UA5/6 Relays

Operation

1. For Starting the Motor, press Green

push button, marked "I"

2. For Stopping the Motor, press Red

push button, marked "O"

3. For Relay Reset: First switch off the

Starter, open the door and then

press blue push button, marked

"Reset", for resetting, after the relay

has tripped due to overload.

4. In case if you want the Starter in

"Self Reset" mode, the blue knob on

Relay is to be pressed and rotated

in anticlockwise direction, so that it

comes in position "A" and its edge

ushwiththerelaysurface.Inthis

mode if the relay trips on overload,

it will be automatically reset in

maximum 4 minutes.

The Motor can be restarted only

after the relay is reset.

H - Hand Reset

A - Auto Reset

Blue

Reset

Knob

Figure 6: Relay Front View

Q1 : Line Contactor

Q2 : Star Contactor

Q3 : Delta Contactor

S1 : 'ON' Push Button-I

S0 : 'OFF' Push Button-O

S4 : 'Reset'Button(ofrelay)

K1 : Bimetal Relay

Q4 : Star Delta Timer

Maintenance

1. Keep the interior dust free.

2. Check the tightening of terminal

screws time to time.

3. No Maintenance is needed for

overload relay and Timer. Do not

open them.

4. If the Contactor hums, clean the

magnet pole faces with soft cloth.

5. Replace contacts of the contactor

if they are severly pitted or when

only 40% original contact tip

remains.

6. For details of contactor maintenance

refer to - "Guide to contactor

Installation & Maintenance".

Figure 7: Wiring Diagram

Siemens Ltd.

DF-CP-0008

Product upgradation is a continuous process. Hence, data in

thisleaetissubjecttochangewithoutpriornotice.Forthe

latestinformation,pleasecontactoursalesOfces.

Order No. 4P-0008-0117366 301

Customer Care Toll free no. 1800 220 987 / 1800 209 0987 Email: [email protected]

PLASTICS : Segregate as per material type for recycling

through authorised dealer.

Because of the long lifetime of Siemens products the

disposal guidelines may be replaced by other national

regulations when taking the product out of service.

The local customer care service is available at any time

to answer disposal-related questions

Siemens Products are environment friendly, which

predominantly consist of recyclable materials.

For disposal we recommend disassembling and

separation into following materials:

METALS : Segregate into Ferrous & Non Ferrous types for

recycling through authorised dealer.

Disposal

Dimensional Drawings (all dimensions in mm)

3TE05..-2AR0

Table 2 : Hardware Information

kW Incoming Terminals Outgoing Terminals Tightening Torque

75 M6 M6 8-10 Nm

90 M6 M6 8-10 Nm

110 M6 M6 8-10 Nm

132 M8 M8 12-16 Nm

Spares List

Spares:

Type of Spares MLFB/Catalogue Number-Make Make

ON/OFF Actuator 3SB5201-7EC01 Siemens

Electronic Timer 3RP15 76 -1NM20 8K Siemens

Relay As per Table 1 Siemens

Lock with key MS 748-3 with Cam 12mm ArihantPanelttings

Lock without key MS 714-2 with Cam 12mm ArihantPanelttings

Figure 8: External and Mounting Dimensions

Front view

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