Features of ProductsSG(B)10 type-this series Dry-type Distributing Transformer has
strong withstanding of thermal shock, overload capability. Beside,
it has many good points such as flame-retardant, Iow-loss, and Iow
partial discharge capacity, Iow noise, no harmful gas and no
pollution. It is insensitive of humidity and dust, compacted, no
crack and so it is easy to be maintained. Therefore, it is suitable
for
the using in the adverse circumstances of high requirement for fire
protection, high degree of load fluctuation and dirty, moist,
such as airport, power plant, metallurgy, hospital, skyscraper,
shopping center, and residential areas and other special
environments like oil, chemical industry, nuclear power plant,
nuke, etc.
| CoreThe iron core applies imported high-performance cold-rolled grain
-oriented silicon-steel plate and it applies 45° fully-inclined
joint form.
Between the layers of winding, it applies flexible fastening device
and
makes no-load loss and noise Iow.
The iron core surface is dealt with special craft which makes the
noise Iow and the iron core rustless during running.
The iron core is clamped by tensile rod and no punched hole. The
upper and lower clamps are connected by drawplate and fixed with
the base. By fixed with flexible pad and cushion structure, it
makes
the winding of lower vibration and noise. |
HV,LV Coil materials | The high-voltage and Iow-voltage coils are made up of
Nomex insulating material and dipped in solvent-free
immersion paint many times by VPI vacuum pressure device
and is solidified by high temperature baking. The high-voltage
coil applies continuous mode structure of high mechanical
strength and good heat dispersion, avoiding step-shaped
multilayered drum type structure which makes high voltage,
Iow heat dispersion, easy to be thermal runaway and Iow
mechanical strength. It is therefore that the reliability of the
product is ensured. The Iow-voltage coil applies foil or strong
current helix structure of longitudinal air flue. After dipping,
the coil has a good moisture proof, impacting resistance and
no chapping, no partial discharge. It can be decomposed
and recycled. |
| Shield CoverWe could provide the shell of protective grade IP20 and IP23,
if it is required by the users.
IP20 configuration of transformer prevent foreign matter
whose diameter is bigger than 12mm from entering into the casing;
and IP23 configuration can also prevent water whole angle to
vertical line is less than 60~ from drenching into casing. To
ensure
the ventilation of cold air, the base plate and the top of the
shell aremade up of mesh plates. |
Over-thermal ProtectionTake thermal safeguard for coil. SG10 dry-type transformer of
315KVA or above employs
a set of protecting device----temperature displayer. This device
uses the temperature sensor
which stays deep in the Iow-voltage wingding as signal source for
displayer. When the
temperature of Iow-voltage wingding varies, the temperature
displayer will show the new value.
According this temperature, it will control and alarm to protect
the transformer. |
Over-load AbilitySG(B)10 series dry-type transformer adopts new structure,
material and new craftwork. It has good points of good heat
dispersion, long thermal endurance and extensive strong
overload capability. It can work under 120% overload or work
over a long time safely and reliably. Under the situation of IP23,
it can run overload over a long time without fan to cool. | |
Safety
SG(B)10 type-this new kind of product is now the dry-type
transformer of highest security performance.
All the insulating material.is flame-retardant, self-extinguishing
and non-poisonous. Its combustible
material only takes less than 10% of the epoxy resin product. No
poisonous gas is produced when it is
burning over a long time unler high temperature of 800~C. And with
this feature, it overcomes the shortage
that epoxy resin would produce poisonous gas when it is burning. It
reveals the superiority when the new
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