MasterPacT MTZ Integration in Source-Changeover Systems
Source-Changeover Systems Mechanical Interlocking
Schneider Electric offers source changeover systems based on MasterPacT MTZ devices.
They are made of up to three circuit breakers or switches linked by an electrical interlocking system that may have different configurations. A mechanical interlocking system must be added for additional protection against electrical problems or incorrect manual operations. In addition, a controller can be used for automatically control the source transfer.
For implementing the mechanical interlocking two different possibilities are offered:
-
interlocking with rods
-
interlocking with cables
The following pages present the different solutions for mechanical and electrical interlocking and associated controllers.
Interlocking Two Devices Using Connecting Rods
|
Interlocking of two MasterPacT MTZ2 or MTZ3 circuit breakers using connecting rods |
The two devices must be installed one above the other.
Available only for MasterPacT MTZ2 and MTZ3 devices, all mixed associations between fixed type and drawout type devices are possible.
Installation
This function requires:
-
An adaptation fixture on the right side of each circuit breaker or switch.
-
A set of connecting rods with no-slip adjustments.
-
A mechanical operation counter CDM (required).
The adaptation fixtures, connecting rods, circuit breakers and switches are supplied separately, ready for assembly by the customer.
The maximum vertical distance between the fixing plates is 900 mm (35.4 in.).
Interlocking of Two or Three Devices Using Cables
|
Interlocking of two MasterPacT circuit breakers using cables |
For cable interlocking, the circuit breakers can be installed either one above the other or side-by-side.
All mixed associations between MasterPacT MTZ2 and MTZ3 fixed and drawout type devices are possible.
Interlocking between two MasterPacT MTZ2 devices
This function requires:
-
An adaptation fixture on the right side of each device.
-
A set of cables without slip adjustments.
-
A mechanical operation counter CDM (required).
The maximum distance between the fixing planes (vertical or horizontal) is 2000 mm (78.7 in.).
Interlocking between three MasterPacT MTZ devices.
This function requires:
-
A specific adaptation fixture installed on the right side of each device.
-
Two sets of cables without slip adjustments.
-
A mechanical operation counter CDM (required).
The maximum distance between the fixing planes (vertical or horizontal) is 1000 mm (39.4 in.).
Installation
The adaptation fixtures, sets of cables and circuit breakers or switches are supplied separately, ready for assembly by the customer.
Installation conditions for cable interlocking systems:
-
Cable length: 2.5 m (8.2 ft.)
-
Cable bending radius: greater than 100 mm (3.94 in.)
-
Maximum number of curves: three
MasterPacT MTZ Mechanical Interlocking by Cables
All mixed associations between MasterPacT MTZ2 and MTZ3 fixed and drawout type devices are possible.
|
Cable Interlocking |
|
|---|---|
|
Vertical |
Horizontal |
|
Two devices MTZ2 - MTZ3 |
|
|
Three devices MTZ2 - MTZ3 |
|
|
MasterPacT MTZ1 Circuit Breaker Locking |
||||
|---|---|---|---|---|
|
Catalog Number |
||||
|
Cable-Type Door Interlock |
1 complete assembly for MasterPacT MTZ1 fixed devices |
|||
1 complete assembly for MasterPacT MTZ1 drawout devices |
||||
|
MasterPacT MTZ1 Mechanical Interlocking for Source Changeover Catalog Numbers |
|||
|---|---|---|---|
|
Catalog Number |
|||
|
Interlocking Using Connecting Rods |
Complete assembly with 2 adaptation fixtures + rods |
||
|
2 MasterPacT MTZ1 fixed devices |
|||
|
2 MasterPacT MTZ1 drawout devices |
|||
|
1 set of 2 interlocking rods |
|||
|
Interlocking Using Cables * |
Choose 2 adaptation fixtures (1 for each breaker) + 1 set of cables |
||
|
1 adaptation fixture for MasterPacT MTZ1 fixed devices |
|||
|
1 adaptation fixture for MasterPacT MTZ1 drawout devices |
|||
|
1 set of 2 cables |
|||
|
Interlocking of 2 devices using connecting rods |
Complete assembly with 2 adaptation fixtures + rods |
||
|
1 set of 2 adaptation fixtures for MasterPacT MTZ2 or MTZ3 fixed or drawout device |
|||
|
1 set of 2 interlocking rods |
|||
|
NOTE: Can be used with 1 MTZ2/3 fixed + 1 MTZ2/3 drawout.
|
|||
|
Interlocking of 2 Devices Using Cables* |
Choose 2 adaptation fixtures (1 for each device) + 1 set of cables |
||
|
1 adaptation fixture for MasterPacT MTZ2/3 fixed devices |
|||
|
1 adaptation fixture for MasterPacT MTZ2/3 drawout devices |
|||
|
1 set of 2 cables of 2.5 m |
|||
|
Interlocking of 3 Devices Using Cables |
Choose 1 interlocking kit (including 3 adaptation fixtures + cables) |
||
|
3 sources, only 1 device closed, fixed or drawout devices |
|||
|
2 sources + 1 coupling, fixed or drawout devices |
|||
|
2 normal + 1 replacement source, fixed or drawout devices |
|||
|
Door Interlock / 1 Part |
Right and left-hand side of cradle (VPECD or VPECG) |
||
|
Racking Interlock |
Racking interlock (VPOC) |
||
|
Spare Parts for Source Changeover Mechanical Interlocking |
|||
|---|---|---|---|
|
Catalog Number |
|||
|
Interlocking Using Connecting Rods |
Complete assembly with 2 adaptation fixtures + rods |
||
|
2 MasterPacT MTZ1 fixed devices NOTE: The installation manual
is enclosed.
|
|||
|
2 MasterPacT MTZ1 drawout devices NOTE: The installation manual
is enclosed.
|
|||
|
Interlocking Using Cables * |
Choose 2 adaptation fixtures (1 for each device) + 1 set of cables |
||
|
1 adaptation fixture for MasterPacT MTZ1 fixed devices |
|||
|
1 adaptation fixture for MasterPacT MTZ1 drawout devices |
|||
|
1 set of 2 cables |
|||
|
Description |
Catalog Number |
|
|---|---|---|
|
Door Interlock |
||
|
Door interlock MTZ1 |
Right and left-hand side of cradle (VPECD or VPECG) |
|
|
Door interlock MTZ2/3 |
Right and left-hand side of cradle (VPECD or VPECG) |
|
|
Cable-type door interlock |
1 complete assembly for MasterPacT MTZ2/MTZ3 fixed or drawout device |
|
|
Mechanical Interlocking for Source Changeover for MTZ2/3 |
||
|
Interlocking
of 2 devices using connecting rods |
Rod Interlock kit: 1 set of 2 adaptation fixtures for MasterPacT MTZ2 or MTZ3 fixed or drawout device |
|
|
1 set of 2 interlocking rods |
||
|
Can be used with 1 MTZ2/3 fixed + 1 MTZ2/3 drawout. Note: the installation manual is enclosed. Interlocking of 2 devices using cables [1] |
||
|
Interlocking
of 2 devices using cables [1] |
1 adaptation fixture for MasterPacT MTZ2/3 fixed devices |
|
|
Cable mouinting plate: 1 adaptation fixture for MasterPacT MTZ2/3 drawout devices |
||
|
Cable interlock: 1 set of 2 cables |
||
|
Interlocking
of 3 devices using cables |
3 sources, only 1 device closed, fixed or drawout devices |
|
|
2 sources + 1 coupling, fixed or drawout devices |
||
|
2 normal + 1 replacement source, fixed or drawout devices |
||