Chassis Truck for Circuit Breaker 24kv, 800mm
Product Introduction
NDA series chassis truck is with complete
stable interlock function. Generally speaking,
five-protection interlockwill be realized through middle positioned
unit and chassis truck,
as well as earthing switch, the chassis
truck could reach following interlocking performance:
1. Whatever chassis truck is in working position
or disconnecting position, when it is in closing state,
handle can't be operated to prevent chassis
truck from moving with overload.
2. When chassis truck is in working
position, earthing switch can't close, to prevent earthing switch from
closing with electricity.
3. When chassis truck gets back to
disconnecting position, and earthing switch is in closing,
chassis truck can't be rotated to working
position, to avoid closing with earthing wire.
4. Once chassis truck left disconnecting position,
during the process of rotating the handle to move chassis truck
to working position, closing operation
can't be proceeded. Closing can only operated when chassis truck
getting
working position.
5. There are 2 auxiliary switches installed
on chassis truck, the rated current of the contact is 15A, code is S8, S9.
S8 gets 5 pairs of normally-close contacts,
when chassis truck is in disconnecting position, S8 auxiliary switch is in
normally-close state.When chassis truck is in working position,
S8 is in breaking state. S9 gets 5 pairs of
normally-open contacts, when chassis truck is in disconnecting
position, S9 is in breaking state, while when
chassis truck is in working position, S9 is in closing state.
6. After chassis truck getting into
switchgear, if chassis truck is not in disconnecting position, chassis truck
won't get out from switchgear.
Ordering Instruction
1. The mounting holes’ dimension can be
customized according customers' need.
2. Indicating auxiliary switch’s contact
need, our defaulted auxiliary switch is 5NO+5NC.
3. Indicating the type of locking plate
Technical Drawing
