■ Transport and storage
Switchgear in the transport and storage process to pay attention to the following points:
1 Do not turn over, upside down and suffered severe vibration, to prevent closing to fire;
2 Should prevent rain so as to avoid product moisture;
3 Do not disassemble products and components.
■ Switchgear installation
1.Switchgear installation size and the basic installation size, see figure.
2.installation of the basic reference to the following figure, the basic channel out of the ground
1-3mm, within the range of unevenness should not exceed 1.5mm, full length range of not more
than 5mm
3. Place the switchgear on the basis of the order, adjust the location of the installation. And then
use M12 bolts or spot welding method to be fixed, cabinet and cabinet with M8 bolts and tight.
4. Open the rear cover to install the main bus and a cable, the terminal contact surface should pay
attention to clean and apply neutral Vaseline. After installation, pay attention to a good cable hole.
5. Connection between the cabinet grounding bus, so that along the direction of the switch cabinet
connected into one, check the working ground and protective grounding is missing, the ground
circuit is continuous conduction, working grounding resistance should not be greater than 1000μΩ,
protective grounding resistance should not be greater than 4Ω
6. To install the secondary cable, the cable from the bottom of the cabinet into the front side of the
chamber into the low pressure chamber, connected to the terminal block; or by the second row of
small busbar into the low pressure chamber, installed after the closure of the cable hole.
7. Cleaning cabinet dust debris.
■ Operation
Carried out the following checks and inspection before commissioning :
a:) Checking whether the fasteners are loose; checking whether the first and second wiring is
correct; operate the disconnector, circuit breaker, mechanical interlock 3 ~ 5 times, should be
flexible without jamming phenomenon, interlock to meet the "five prevention" requirements, and
then filling grease to the mechanical parts .
b:) Checking the insulation level and circuit resistance of the switchgear and the mechanical
characteristics of the circuit breaker according to the third and the factory test report of this
manual. The test result shall be consistent with or similar to the factory test report.
■ Maintenance
1.Users should regularly carry out maintenance of the switchgear, the contents are:
● Clean all parts of the dust, especially the dust on the surface of the dust;12 / 13
●Check the mechanical activities of the site, regular filling grease to keep the action flexible and
reliable;
●Circuit breakers, disconnectors, earthing switches and other components of the maintenance
according to their respective instructions;
● Check the electrical contact parts are good, with or without overheating, ground circuit is turned
on;
● Regularly check whether the fasteners are fastened.
■ Avoid misoperation interlocking device
“Five anti” - function: prevent false open and closing circuit breaker; To prevent falsing open and
closing isolation switch with load; Prevent stray lines from being chargedThe switchgear adopts
the compulsory mechanical locking mode, the locking device consists of the main components,
such as the support, disk, panel, handle, connecting rod and so on. it has the characteristics of
reliable performance, complete function, simple structure, convenient operation, easy to operate,
and effective to realize the “five anti”
1. The control switch with red and green turn card is applicable to the circuit breaker scheme,
which is used to prevent the wrong points and the circuit breaker
2. The small handle can be pulled out of the service position from the service position to the "
beak and lockout" position only when the circuit breaker is broken. Open and closing isolator
switch to prevent opening and closed isolator switch with load. That is, when the small handle is
in the " beak and lockout" position, it can only be closed and open the upper and lower isolation
switch, can not close the circuit breaker, avoid false closing circuit breaker
3. When the breaker and the upper and lower isolation switch are in the closing state, when the
small handle is in the " work" position, the front and rear door cabinet doors cannot be opened to
prevent straying into the charged interval
■Documents and materials
Complete set to provide the following documents
1 Product certificate;
2 Product packing list;
3 Product factory test report;
4 Product manual instruction;
5 Equipment list;
6.Secondary wiring diagram;
7. The products are supplied according to the catalog and equipment list;
