35KV HY5WZ-51/134 Power Station Type Zinc Oxide Arrester

The core component (resistor) of the metal oxide arrester uses a zinc oxide-based formula, which has very nonlinear (volt-ampere) characteristics, that is, under normal operating voltage, the current passing through is only microamperes. level, when encountering overvoltage, the passing current instantly reaches thousands of amperes, causing the arrester to be in a conducting state and releasing the overvoltage energy, thus effectively limiting the damage of overvoltage to power transmission and transformation equipment.
Traditional silicon carbide arresters have shortcomings such as high steep wave discharge voltage caused by steep wave discharge delay and high operating wave discharge voltage caused by large operating wave discharge dispersion. Zinc oxide arresters have good steep wave response characteristics, no delay to steep wave voltage, low operating residual voltage, and no discharge dispersion. The protection margin under steep waves and operating waves is greatly improved, and in terms of insulation coordination, the protection margins under steep waves, lightning waves and operating waves can be nearly consistent, thereby providing high-quality protection for power equipment. Composite jacketed metal oxide arrester adopts integral injection molding and two-end encapsulation process. It has good sealing performance and explosion-proof performance. It is resistant to dirt and requires no cleaning and can reduce the occurrence of wet flash in foggy weather. It is resistant to electrical corrosion and aging. It's small in size, durable in weight and easy to install and maintain. It is an updated product of the porcelain sleeve arrester.

Voltage level	Place of use	System nominal voltage (kV) effective value	Arrester model	Arrester rated voltage (kV) effective value	Gapless arrester			Gap arrester			Residual voltage peak value (kV) (not greater than)			2000μS square wave flow capacity (A)	4/10 Large current withstand capability (kV)
					Arrester continuous operating voltage (kV) effective value	DC 1mA reference voltage (kV) effective value	Maximum leakage at 0.75 times DC voltage (μA)	The effective value of power frequency discharge voltage (kV) is not less than	1.2/50 The peak value of impulse discharge voltage (kV) is not greater than	Maximum conductive current (μA)	8/20Lightning impulse current	0/60 operating surge current	1/4 steep slope impulse current
35KV	Power station type	35	HY5WZ-51/134	51	40.8	73	50	-	-	-	134	114	154	400	65
		35	HY5CZ-42/124	42	-	-	-	80.0	124	20	124	100	143	400	65
		35	HY5WZ-42/134	42	23.4	73	50	-	-	-	134	114	154	400	65