Siemens SR200R Benutzerhandbuch
4
Section 3 — Operation
“HS” Type Transfer Switch
Connect power source load conductors to clearly
marked transfer mechanism terminal lugs as fol-
lows
marked transfer mechanism terminal lugs as fol-
lows
1. Connect UTILITY (NORMAL) power source cables
to switch terminals N1, N2.
2. Connect EMERGENCY (STANDBY) source power
cables to transfer switch terminals E1, E2.
3. Connect customer LOAD leads to switch termi-
nals T1, T2.
Conductors must be properly supported, of approved
insulative qualities, protected by approved conduit,
and of the correct wire gauge size in accordance with
applicable codes.
insulative qualities, protected by approved conduit,
and of the correct wire gauge size in accordance with
applicable codes.
Be sure to maintain proper electrical clearance
between live metal parts and grounded metal. Allow
at least 1/2 inch for 100-400 amp circuits.
between live metal parts and grounded metal. Allow
at least 1/2 inch for 100-400 amp circuits.
2.5
CONNECTING START CIRCUIT
WIRES
WIRES
Control system interconnections (Section 6) consist
of UTILITY 1 (N1) and UTILITY 2 (N2), LOAD 1
(T1) and LOAD 2 (T2), and leads 23 and 194 when
used in conjunction with some water-cooled genera-
tors. Recommended wire gauge sizes for this wiring
depends on the length of the wire, as recommended
below:
of UTILITY 1 (N1) and UTILITY 2 (N2), LOAD 1
(T1) and LOAD 2 (T2), and leads 23 and 194 when
used in conjunction with some water-cooled genera-
tors. Recommended wire gauge sizes for this wiring
depends on the length of the wire, as recommended
below:
NOTE:
If there are no matching terminal connections for
LOAD 1 (T1) and LOAD 2 (T2) in the generator
control panel, do not connect these wires. Failure
of the control board will occur if connected.
LOAD 1 (T1) and LOAD 2 (T2) in the generator
control panel, do not connect these wires. Failure
of the control board will occur if connected.
3.1
FUNCTIONAL TESTS AND
ADJUSTMENTS
ADJUSTMENTS
Following transfer switch installation and inter-
connection, inspect the entire installation care-
fully. A competent, qualified electrician should
inspect it. The installation should comply strictly
with all applicable codes, standards, and regula-
tions. When absolutely certain the installation is
proper and correct, complete a functional test of
the system.
connection, inspect the entire installation care-
fully. A competent, qualified electrician should
inspect it. The installation should comply strictly
with all applicable codes, standards, and regula-
tions. When absolutely certain the installation is
proper and correct, complete a functional test of
the system.
Perform functional tests in the exact order pre-
sented in this manual, or damage could be done
to the switch.
to the switch.
IMPORTANT: Before proceeding with functional tests,
read and make sure all instructions and information
in this section are understood. Also read the infor-
mation and instructions of labels and decals affixed
to the switch. Note any options or accessories that
might be installed and review their operation.
read and make sure all instructions and information
in this section are understood. Also read the infor-
mation and instructions of labels and decals affixed
to the switch. Note any options or accessories that
might be installed and review their operation.
3.2 MANUAL OPERATION
DANGER
Do NOT manually transfer under load.
Disconnect transfer switch from all power sourc-
es by approved means, such as a main circuit
breaker(s).
es by approved means, such as a main circuit
breaker(s).
A manual HANDLE is shipped with the transfer
switch. Manual operation must be checked BEFORE
the transfer switch is operated electrically. To check
manual operation, proceed as follows:
switch. Manual operation must be checked BEFORE
the transfer switch is operated electrically. To check
manual operation, proceed as follows:
1. Turn the generator’s AUTO/OFF/MANUAL switch
to OFF.
2. Turn OFF both UTILITY and EMERGENCY power
supplies to the transfer switch, with whatever
means provided (such as the main line circuit
breakers).
means provided (such as the main line circuit
breakers).
3. Note position of transfer mechanism main con-
tacts by observing the moveable contact carrier
arm.
arm.
• Manual operation handle towards the top of
switch mechanism - LOAD terminals (T1, T2) are
connected to UTILITY terminals (N1, N2).
connected to UTILITY terminals (N1, N2).
• Manual operation handle towards the bottom of
switch mechanism - LOAD terminals (T1, T2) are
connected to EMERGENCY terminals (E1, E2).
connected to EMERGENCY terminals (E1, E2).
Do not use excessive force when operating the
transfer switch manually or damage could be
done to the manual handle.
done to the manual handle.
3.2.1 CLOSE TO NORMAL SOURCE SIDE
Before proceeding, verify the position of the switch
by observing the position of manual operation handle
in Figure 3.1. If the handle is UP, the contacts are
closed in the NORMAL position, no further action is
required. If the handle is DOWN, proceed with Step
1.
by observing the position of manual operation handle
in Figure 3.1. If the handle is UP, the contacts are
closed in the NORMAL position, no further action is
required. If the handle is DOWN, proceed with Step
1.
MAXIMUM WIRE LENGTH
RECOMMENDED WIRE
SIZE
460 feet (140m)
No. 18 AWG.
461 to 730 feet (223m)
No. 16 AWG.
731 to 1,160 feet (354m)
No. 14 AWG.
1,161 to 1,850 feet (565m)
No. 12 AWG.