Mining Substation

•Mining flameproof substation used for Special & harsh environmental
•Mining substation with Excellent explosion-proof performance and mechanical strength
•220 ℃ insulation class
•Flameproof Group IIB, Zone 1， Zone 2
•Fire-proof, nonpoisonous air created, low noise, environmental protected
•Mainentance-free
•withstand heat shock ability, over load capacity
•Multiple protective functions of overload, short circuit, leakage, leakage lockout, over-voltage, under-voltage and over temperature

Related product parameters

Main Specification
Transformer Type	dry type
Rated capacity	up to 8000kva
Rated voltage	up to 11kv
Frequency	50/60Hz
Phase	3 Phase
Winding material	Copper /Aluminum
Insulation class	H(180℃）, C (220℃）
Vector group	Dyn11, YNd1d1，
Cooling	ANAN，GNAN
Protection Enclosure	IP00 to IP54
Explosion-proof type	ExdIMb
Zone	Zone 1, Zone 2
Tank Paining	C4 and C5 on resquest
Altitude	Max 2300m
standard	IEC, AS, EN, IEEE/ANSI, GOST

specifications

Application:

Mining explosionproof transformers are designed for use in flame-proof, solid enclosures which are often transported on large mining machines.

The Explosion-proof Mobile Substation consists of mainly explosion-proof high voltage switch, explosion-proof transformer, and explosion-proof low voltage switch. The transformer is bolted to the high and low voltage switches.

HV and LV switches have three configuration options:

A) Mining Flameproof HV vacuum switch + Mining Flameproof LV protection box

B) Mining Flameproof HV vacuum switch + Mining Flameproof LV feed switch

C) Mining Flameproof HV vacuum switch + Mining Flameproof LV multi-loop combined switch(LMCC)

flameproof mining substations

underground mining dry transformer drawings

FACTORY TEST

For each transformer are prepared and issued a test report, in accordance with IEC 60076. except for routine tests, we also offer type tests and specialised tests to meet all customer requirements. We make what matters work for our customers in a safe and reliable way.

Varelen has launched online FAT plan for customers. Our factory can make acceptance testing ( either witnessed and on-line) in order to show all technical and quality requirements have been done before shipment. flameproof dry type substation

Routine test

Measurement of winding resistance
Measurement of voltage ratio and check of phase displacement
Measurement of short-circuit impedance and load loss
Measurement of no-load loss and current
Separate-source AC withstand voltage test
Induced AC withstand voltage test
Partial discharge measurement

Type test

Lightning impulse test
Temperature-rise test

Special test

Partial discharge measurement
Measurement of sound level
Short-circuit test

Contact information

Emailsales@varelen.com Tel+86 19373185639 Fax+86 731 84371029 Phone/WeChat+86 19373185639

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Mining Transformer