American Audio VELOCITY - REV 4-05 Betriebsanleitung PDF herunterladen (Seite 143)

METRO RAIL DESIGN CRITERIA SECTION 9 / SYSTEMS

DE304.09 9-138 Revision 4 : 05/09/12

Metro Baseline Re-Baseline: 04/29/10

9.18.5 Traction Power Substations

A. Locations, Capacities, and Other Requirements

1. The TPSS shall be sized and located along the alignment at suitable

intervals based on computer simulation studies taking in consideration all the

determining factors, such as track alignment, distribution system electrical

parameters, vehicle propulsion, operational requirements, among others.

Preferably, the TPSS shall be located at, or near, passenger stations to

minimize voltage drops in the distribution system during train acceleration.

2. The TPSS shall provide 750VDC nominal voltage at 100% load and operate

in a range from 500VDC to 950 VDC.

3. The TPSS locations, capacities, and all other characteristics shall be

determined in order to meet the service requirements on the respective line,

including vehicle loads, composition size, frequency of trains, and others,

without degradation of service even with any one of the TPSSs out of

service, providing a minimum voltage of 525VDC to any train at any location

of the line.

4. The system shall be designed, and shall be tested, for the allowance of the

simultaneous acceleration of two AW2 loaded full train compositions –one

on each direction - at the substation from which the adjacent substations are

furthest apart, under the following scenarios:

a. Acceleration of the two trains close to the selected substation while it is

on service and the furthest apart substation is out-of-service;

b. Acceleration of the two trains to the selected substation while it is out-of-

service and the two adjacent substations are on service.

c. The system shall assume line current limit or similar control mechanisms

under reduced line voltage conditions, as specified by Metro Rail Fleet

Services for each type of vehicle and in accordance with the assignment

by Operations of the type(s) of vehicle(s) to operate on each specific

line.

5. The negative to ground voltages shall be maintained below 50V - at any

point of the line and at any time- during normal operation with all substations

on service, and below 70V with any one substation out-of-service.

B. Utility Incoming Switchgear

1. Utility Incoming Metering Switchgear, as well as all incoming power

connections, shall be provided in accordance with the specific Utility

requirements. Adjacent substations shall be supplied from separate utility

substations or from separate buses of the same utility substation, as

practically possible. Isolation means shall be provided outside the TPSSs to

enable the utility company to disconnect the high voltage incoming supply

from the TPSS.

C. High Voltage Switchgear

1 2 ... 138 139 140 141 142 143 144 145 146 147 148 ... 190 191

Kommentare zu diesen Handbüchern

Keine Kommentare

American Audio VELOCITY - REV 4-05 Betriebsanleitung Seite 143

Kommentare zu diesen Handbüchern