0HK.412.530SM
LW36A-126/145
High Voltage SF6 AC Circuit Breaker
6/30
The point type SF6 density controller(with pressure meter) is use for monitoring the density of gas SF6
in equipment and send control signal
，
it have the function of temperature compensate. When the
ambient temperature change to bring the pressure change of gas SF6, the controller will not act. Only
when the gas SF6 leak to bring pressure change, the controller will alarm and closedown signal.
The control box connect under the base by 6 bolts M20, there are dampproof and dustproof seal
equipment at the joint of mechanism output pole, the joint of B phase regulating lever and the exit of
secondary wire.
Attention
：
1 When not connect the pole, the pressure meter display data is the pressure of pipeline.
2 the pressure data displayed is at 20
℃
.
1
．
4 Pole(porcelain vase)
Each pole is an airtight unit. The pole consist from top to bottom: above output wire plate, explosion
chamber, bottom output plate, support porcelain tube, insulating tie bar, regulating lever box, operating
mechanism etc.
（
see drawing 2
）
.
2
．
4
．
1 Above output wire plate and bottom output wire plate
Above output wire plate and bottom output wire plate are use for line primary connecting
，
the bottom
output wire plate have output wires on face and inverse
（
the side of switch on indication and switch off
indication on control box called face, or the side have a pressure meter called face
）
，
the output wire
direction of above output wire plate can install according to user’s request. If user haven’t definitely
request, the above output wire plate will be installed at face side. Wire connection hole dimensions of
above output wire plate and bottom output wire plate have 3150A and 1250A two wire connection
types, see drawing 3
，
the dimension criterion refer to GB5273
《
connection terminal of transformer, high
voltage electric appliance, bushing
》
.
2
．
4
．
2 Explosion chamber
Explosion chamber installed in bushing, it is the core part of circuit breaker. It mainly consist by
porcelain tube, fixed contact base, fixed main contact, fixed arc contact, spout, cylinder, moving arc
contact, middle contact, bottom support base, tie bar, etc.
（
see drawing 4
）
。
The sorbent is put on the
top of fixed contact base, tie bar is connect with insulated tie bar of support porcelain tube, finally
connect to outer regulating lever. The explosion chamber porcelain tube is made by high strength
porcelain, it is high strength and good airtightness.
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