TeSys contactors 5. Selection 5. For utilisation category AC-3. Operational current and power conforming to IEC (θ y 60 C) Contactor size

Transcription

1 Selection TeSys contactors For utilisation category AC- Operational current and power conforming to IEC (θ y 0 C) Contactor size Maximum operational current in AC- Rated operational power P (standard motor power ratings) / LP K0 / LP K0 K K y 0 V A 0 0/0 V kw /00 V kw V kw V kw.... D0 D D D D D D0A 00 V kw /0 V kw V kw Maximum operating rate in operating cycles/hour () On-load factor Operational power D0 D D D D D D0A y % P P y % P Operational current and power conforming to UL, CSA (θ y 0 C) Contactor size Maximum operational current in AC- Rated operational power P (standard motor power ratings 0 Hz) / LP K0 / LP K0 / LP K y 0 V A 0 00/0 V HP /0 V HP /0 V HP D0 D D D D D D0A /00 V HP () Depending on the operational power and the on-load factor (θ y 0 C). 0 /

2 D0A DA D0 D D D0 F F F F F00 F00 F0 F0 F00 BL BM BP BR, D0A DA D0 D D D0 F F F F F00 F00 F0 F0 F00 BL BM BP BR D0A DA D0 D D D0 F F F F0 F00 F00 F0 F0 F /

3 Selection (continued) TeSys contactors For utilisation category AC- Selection according to required electrical durability, in category AC- (Ue y 0 V) Control of -phase asynchronous squirrel cage motors with breaking whilst running. The current broken (Ic) in category AC- is equal to the rated operational current (Ie) of the motor. 0, LP, LP K0, LP, LP K0 -D0, LP, LP K D K D D D D, 0, 0, 0, V 0, 0,,, D0A, D0A, DA D0 D D D0, 0 kw 00 V 0,,,,,,, 0 V kw,,,, 0 0 kw Operational power in kw-0 Hz. Example: Asynchronous motor with P =. kw - Ue = 00 V - Ie = A - Ic = Ie = A or asynchronous motor with P =. kw - Ue = V - Ie = A - Ic = Ie = A million operating cycles required. The above selection curves show the contactor rating needed: D. Selection according to required electrical durability, in category AC- (Ue = 0/0 V) () Control of -phase asynchronous squirrel cage motors with breaking whilst running. The current broken (Ic) in category AC- is equal to the rated operational current (Ie) of the motor. 0, 0, D0 0, 0, D D D D, D D0A D0A DA D0 D D D () For Ue = 000 V, use the 0/0 V curves, but do not exceed the operational current at the operational power indicated for 000 V. 0 /

4 Selection (continued) TeSys contactors For utilisation category AC- Selection according to required electrical durability, in category AC- (Ue y 0 V) Control of -phase asynchronous squirrel cage motors with breaking whilst running. The current broken (Ic) in category AC- is equal to the rated operational current (Ie) of the motor. 0, 0, 0, F F F F0 F00 F00 F0 F00 F0 BL, BM () BP BR 0, V 0 V,,, kw 0 V 00 V, kw 0 V, 0 Operational power in kw-0 Hz. Example: Asynchronous motor with P = kw - Ue = 0 V - Ie = A - Ic = Ie = A or asynchronous motor with P = kw - Ue = V - Ie = 0 A - Ic = Ie = 0 A. million operating cycles required. The above selection curves show the contactor rating needed: F kw () The dotted lines are only applicable to BL contactors. Selection according to required electrical durability, in category AC- (Ue = 0/0 V) Control of -phase asynchronous squirrel cage motors with breaking whilst running. The current broken (Ic) in category AC- is equal to the rated operational current (Ie) of the motor. 0 F F F F0 F00 F00 F0 F0 F00 BL, BM BP BR, 0, 0, () 0, V 0 V Example: Asynchronous motor with P = kw - Ue = 0 V - Ie = 0 A - Ic = Ie = 0 A. million operating cycles required. The above selection curves show the contactor rating needed: F kw 0 () The dotted lines are only applicable to BL contactors. /

5 Selection TeSys contactors For utilisation category AC- Maximum operational current (open-mounted device) Contactor size Maximum operating rate in operating cycles/hour Connection conforming to IEC 0- Operational current in AC- in A, according to the ambient temperature conforming to IEC 0- Maximum operational power y 0 C () Please consult your Regional Sales Office. / LP K0 / LP K D0 DT0 D DT D DT D DT0 D D D0A DT0A Cable c.s.a. mm 0 0 Bar c.s.a. mm y 0 C A y 0 C A y 0 C A (at UC) () () () 0/0 V kw 0 V kw 0/00 V kw 0 V kw 0 V kw 00 V kw 0 0 0/0 V kw 000 V kw Increase in operational current by parallel connection of poles Apply the following coefficients to the currents or power values given above; these coefficients take into account an often unbalanced current distribution between the poles: b poles in parallel: K =. b poles in parallel: K =. b poles in parallel: K =. Selection according to required electrical durability, in category AC- (Ue y 0 V) 0, 0, 0, 0,, LP, LP K0, LP, LP K D0 D D D D, D D0A D0A DA, LP D0 D D D0 0, 0 0, Control of resistive circuits (cos φ u 0.). The current broken (Ic) in category AC- is equal to the current (Ie) normally drawn by the load. Example: b b b Ue = 0 V - Ie = 0 A θ y 0 C - Ic = Ie = 0 A. million operating cycles required. The above selection curves show the contactor rating needed: either or LP D0. /

6 D0A / DA LP DT0A D0 D D D0 F F F F0 F F00 F0 F0 F00 F00 F00 BL BM BP BR x 0 x 0 x 00 x 0 x 00 x () 0 x 0 x 00 x 00 x () With set of right-angled connectors LA F00. 0 F F F F0 F00 F00 F0 F00 F0 BL, BM BP BR 0, 0, 0, () 0, 0, Example: b Ue = 0 V - Ie = 00 A - θ y 0 C - Ic = Ie = 00 A. b million operating cycles required. b The above selection curves show the contactor rating needed: F0. 0 () The dotted lines are only applicable to F. /

7 Selection TeSys contactors For utilisation categories AC- or AC- Maximum breaking current Category AC-: slip ring motors - breaking the starting current. Category AC-: squirrel cage motors - breaking the starting current. Contactor size / LP K0 / LP K0 In category AC- (le max) Ue y 0 V A le max broken = x l motor 0 V < Ue y 0 V le max broken = x l motor A Depending on the maximum operating rate () and the on-load factor, θ y 0 C () From 0 and % to 00 and 0 % A From 0 and 0 % to 00 and 0 % A From 0 and 0 % to 00 and 0 % A / LP K D0 D D D D D D0A From 0 and % to 00 and 0 % A From 0 and % to 00 and 0 % A 0 0 () Do not exceed the maximum number of operating cycles.. () For temperatures higher than 0 C, use a maximum operating rate value equal to 0% of the actual value when selecting from the tables. Counter current braking (plugging) The current varies from the maximum plug-braking current to the rated motor current. The making current must be compatible with the rated making and breaking capacities of the contactor. As breaking normally takes place at a current value at or near the locked rotor current, the contactor can be selected using the criteria for categories AC- and AC-. Permissible AC- power rating for operating cycles Operational voltage / LPp K0 / LPp K0 0/0 V kw /00 V kw LPp K D0 D D D D D D0A V kw V kw V kw... 0/0 V kw /00

8 D0A DA D0 D D D0 F F F F0 F0 F00 F0 F0 F00 BL BM BP BR D0A DA D0 D D D0 F F F F F00 F00 F0 F0 F00 BL BM BP BR /0

9 Selection (continued) TeSys contactors For utilisation categories AC- or AC- Selection according to required electrical durability, in categories AC- or AC- (Ue y 0 V) Control of -phase asynchronous squirrel cage motors (AC-) or slip ring motors (AC-) with breaking whilst motor stalled. The current broken (Ic) in AC- is equal to. x Ie. The current broken (Ic) in AC- is equal to x Ie. (Ie = rated operational current of the motor). 0,, LP, LP K0, LP, LP K0,K D0 D D D D et D D0A D0A DA D0 D D D0 0, 0, 0, 0, 0,0 0,0 0,0 0,0 0,0 0,0 () 0, Example: b Asynchronous motor with P =. kw - Ue = 00 V - Ie = A. Ic = x Ie = A b or asynchronous motor with P =. kw - Ue = V - Ie = A. Ic = x Ie = A. b operating cycles required. b The above selection curves show the contactor rating needed: D. () The dotted lines are only applicable to, LP K contactors. Selection according to required electrical durability, use in category AC- (0 V < Ue y 0 V) Control of -phase asynchronous squirrel cage motors with breaking whilst motor stalled The current broken (Ic) in AC- is equal to. x Ie. The current broken (Ic) in AC- is equal to x Ie. (Ie = rated operational current of the motor). 0, D0 D D D D, D D0A D0A DA D0 D D D0 0, 0, 0, 0, 0,0 0,0 0,0 0,0 0,0 0,0 0,0 0 0, /0

10 Selection (continued) TeSys contactors For utilisation categories AC- or AC- Selection according to required electrical durability, in categories AC- or AC- (Ue y 0 V) Control of -phase asynchronous squirrel cage motors (AC-) or slip ring motors (AC-) with breaking whilst motor stalled. The current broken (Ic) in AC- is equal to x Ie. (Ie = rated operational current of the motor). 0, 0, 0, 0, 0, 0,0 F F F F0 F00 F00 F0 F00 F0 BL, BM BP BR 0,0 0,0 0,0 0, Example: b Asynchronous motor with P = 0 kw - Ue = 0 V - Ie = 0 A. Ic = x Ie = 00 A or asynchronous motor with P = 0 kw - Ue = V - Ie = A. Ic = x Ie = 0 A. b operating cycles required. b The above selection curves show the contactor rating needed: F. Selection according to required electrical durability, use in category AC- (0 V < Ue y 0 V) Control of -phase asynchronous squirrel cage motors with breaking whilst motor stalled. The current broken (Ic) in AC- is equal to x Ie. (Ie = rated operational current of the motor). 0, 0, 0, 0, 0, 0,0 F F F F0 F00 F00 F0 F0, F00 BL, BM BP BR 0,0 0,0 0,0 0, /0

11 Selection TeSys contactors For utilisation categories DC- to DC- 0 + pole + poles + poles + poles Rated operational current (Ie) in Amperes, in utilisation category DC-, resistive loads: time constant L y ms, ambient temperature y 0 C R Rated operational voltage Ue V No. of poles connected in series Contactor rating () D0 DT0 D DT D DT D DT0 D D D0A / DT0A Rated operational current (Ie) in Amperes, in utilisation category DC- to DC-, inductive loads: time constant L y ms, ambient temperature y 0 C R Rated operational voltage Ue V No. of poles connected in series Contactor rating () D0 DT0 D DT D DT D DT0 D D D0A / , 0, 0, 0, 0, 0, 0, () For rated operational currents of contactors and LP K: please consult your Regional Sales Office. DT0A /0

12 D0A DA DT0A D0 D D D0 F F F F0 F00 F00 F0 F0 F00 BL BM BP BR ,, D0A DA DT0A D0 D D D0 F F F F0 F00 F00 F0 F0 F00 BL BM BP BR /0

13 Selection TeSys contactors For utilisation categories DC- to DC- Selection according to required electrical durability, use in categories DC- to DC- The criteria for contactor selection are: b the rated operational current Ie, b the rated operational voltage Ue, b the utilisation category and the time constant L/R, b the required electrical durability. Maximum operating rate (operating cycles) The following limits must not be exceeded: 0 operating cycles/hour at rated operational current Ie. Electrical durability 0 0, 0, D0 D D D D, D D0A, DT0A D0A DA, DT0A, LP D0 D D, D0 0, 0, 0, 0,0 0,0 0,0 0,0 0,0 0, 0, 0, 0, 0, 0, 0, 0, Power broken per pole in kw Example Series wound motor - P =. kw - Ue = 00 V - Ie =. A. Utilisation: reversing, inching. b Utilisation category = DC-. b Select contactor D0 with poles in series. b The power broken is: Pc total =. x 00 x. =. kw. b The power broken per pole is:. kw. b The electrical durability read from the curve is u millions of operating cycles. Use of poles in parallel Electrical durability can be increased by using poles connected in parallel. With N poles connected in parallel, the electrical durability becomes: electrical durability read from the curves x N x Note: When the poles are connected in parallel, the maximum operational currents indicated on pages /0 and /0 must not be exceeded. Note: Ensure that the connections are made in such a way as to equalise the currents in each pole. /0

14 Selection (continued) TeSys contactors For utilisation categories DC- to DC- Selection according to required electrical durability, use in categories DC- to DC- Determining the electrical durability The electrical durability can be read directly from the curves below, having previously calculated the power broken as follows: P broken = U broken x l broken. The tables below give the values of Uc and Ic for the various utilisation categories. Power broken Utilisation categories U broken I broken P broken DC- Non inductive or slightly inductive loads Ue Ie Ue x Ie DC- Shunt wound motors, breaking whilst motor running 0. Ue Ie 0. Ue x Ie DC- Shunt wound motors, reversing, inching Ue. Ie Ue x. Ie DC- Series wound motors, breaking whilst motor running 0. Ue Ie 0. Ue x Ie DC- Series wound motors, reversing, inching Ue. Ie Ue x. Ie 0 0, 0, 0, F, F F F0 F00 F00 F0, F00 F0 BL, BM BP BR 0, 0, 0,0 0,0 0,0 0,0 0, Power broken per pole in kw Example Series wound motor: P = 0 kw - Ue = 00 V - Ie = 00 A. Utilisation: reversing, inching. Utilisation category = DC-. b b b b Select contactor F with poles in series. The power broken is: Pc total =. x 00 x 00 = 00 kw. The power broken per pole is 0 kw. The electrical durability read from the curve is operating cycles. 0 /0