Eaton STS 2000A, Инструкция по установке и эксплуатации

Страница: 42 / 120

26 Eaton Static Transfer Switch 2000A 3-Pole Installation and Operation Manual 164001127—Rev 01
55..11..33 C Coom mm miissssiioonniinngg:: IInniittiiaall P Poow weerr--uupp S Siittee TTeesstt
An Eaton certified technician must commission and perform acceptance testing on the STS 2000A unit to
initiate warranty coverage. All the work performed in this section must be performed or witnessed by an Eaton
Service Representative.
The commissioning sequence is as follows:
1. Before applying input power to the STS, the Installer and the Eaton Service Representative should perform
the following checks:
a. a. Verify that the incoming power matches the unit rating (building electrical service and voltage)
match the unit rating and the STS 2000A Bill of Materials.
b. b. Check the customer connections to input and output buses.
c. c. Verify that the STS is connected to the grounding electrode conductor.
2. Before applying input power to the STS, open all MCCBs and MCSWs in the STS.
3. With all internal MCCBs and MCSWs open, apply power to the unit by energizing the building power circuit
breaker or UPS output circuit breaker supplying the STS 2000A unit.
4. Perform the following measurements:
a. Measure the incoming voltage at input to the unit. Incoming voltage should match the unit’s rating
(-10% to +5% of nominal rating).
b. Check for correct phase rotation (clockwise) and voltage at the source 1 Power Input bus.
c. Verify input phasing is correct as given in Chapter 5 Installation and Startup Procedures .
5. The initial bring-up must be performed in Bypass Mode:
a. Close Bypass 1 MCCB and verify output voltage is present.
b. Open Bypass 1 MCCB; close Bypass 2 MCCB; and verify output voltage is present.
55..11..44 C Coom mm miissssiioonniinngg:: A Acccceeppttaannccee TTeessttiinngg
As part of acceptance testing, the STS should pass a Performance Test at 80% load minimum.
An Eaton service technician will perform or witness the Site Acceptance Test as indicated in the "Site
Acceptance Report.” The technician will then ask the customer representative to sign the completed
Acceptance Test Report/Work Order. The Warranty Period begins when the customer signs the Acceptance
Test/Work Order.
55..11..55 N Noottee oonn S STTS S TTeessttiinngg aanndd C Coom mm miissssiioonniinngg M Meetthhooddoollooggyy
The Eaton PDI WaveStar Static Transfer Switch (STS) has built in redundant logic and transfer abilities. The
primary logic is connected to the line side of input Molded Case Switches (MCSW) and output bus in the static
switch to detect upstream events – this then allows the switch to sense and transfer sources. The 30 Ctrl Nr:
PM375118-004 primary logic has embedded software that controls both the low inrush algorithm and the
concurrent recording of any switch transfer events with its real time wave form capture feature. The secondary
logic is connected to the load side of the input MCSWs in the static switch and is used to trigger the switch to
transfer upon opening of the input MCSWs along with the primary logic.
When performing transfer testing / operation of the static switch, the recommended method is to perform
transfers automatically by using the front touch screen / graphics on the static switch or alternatively to
manually use the redundant operation interface panel. When performing outage testing, the preferred method
is to perform any outage operation by opening the upstream breaker suppling power to the either source on the
static switch. This simulates a true site event and allows the primary logic to detect a real event upstream of
the switch. If an outage is performed by opening the MCSWs at the static switch, the switch will still fail safe
Installation and Startup Procedures