surge arresters

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Station Type Surge Arrester 48KV 10kA with round base

Model YH10WZ-48C1280

Zinc oxide arrester is the current international advanced overvoltage protector. Because its core component adopts zinc oxide resistance sheet; compared with the traditional silicon carbide arrester, the volt-ampere characteristics of the arrester are improved, and the overvoltage current capacity is improved, thus bringing about fundamental changes in the characteristics of the arrester.

When the arrester is under normal operating voltage, the current flowing through the arrester is only microampere. When subjected to overvoltage, due to the nonlinearity of the zinc oxide resistor, the current flowing through the arrester instantly reaches thousands of amperes. The arrester is in the conducting state, release overvoltage energy, thus effectively limiting the damage of overvoltage to power transmission and transformation equipment.

Electrical equipment in AC power systems is shielded from operating overvoltage damage and atmospheric overvoltage by Station Type Surge Arrester 48KV 10kA.

product details

NORMAL SERVICE CONDITIONS

1.The ambient temperature: -40°C ~+40°C

2.The altitude above sea level :not exceed 1000-2000m (the altiplano area should be indicated when order)

3.Earthquake intensity: not higher than 7 degrees;

4.Maximum wind velocity :less than 35m/s.

5.The filthy area should be given clear indication.

PRODUCT FEATURE

YH10WZ-48C1280 Station Type Surge Arrester 48KV 10kA without gaps are designed to prevent probable damages in the case of typical surges in energy systems while it has no negative effect on energy systems in normal operation voltage. This special feature of gapless arresters originating from non-linear characteristics of metal-oxide varistors between voltage and current scales. The non-linear feature is much higher compared silicon carbide surge arresters.

Product Parameter

Description	Unit	Value.
Rated voltage	KV	48
Nominal discharge current	KA	10
Rated AC system frequency	HZ	50 / 60
Continuous operating voltage(rms)	KV	39
1/4μs steep current impulse (crest)	KV	100
8/20μs Lighting impulse residual voltage(crest)	KV	139
30/60μs Swithcing current impulse	KV	115
Rectangular current withstand 2ms	A	500
4/10μs High current impulse withstand(crest)	KA	100
Leakage/Creepage Distance	mM	1280