Lighting Arresters

  • YH5W/YH10W
  • HY1.5W/HY5W/HY5WS
  • HY5WZ/HY10W
  • YH5WZ/YH10WZ
  • HY5CX/HY10CX
  • YH5WX2/YH10CX
  • TLB

We producing and offers a wide variety of high voltage surge arresters, metal oxide gapless arresters designed to protect transformers, switchgear, and other equipment from switching and lightning surges. These arresters meet or exceed all requirements of the most current IEC standard and can be selected to match a range of contamination and energy requirements. Surge arresters complete our reliable product solutions designed for fault free distribution of electricity.
It should be installed parallel (between the line and earth) to the transformer or cable terminations, or other objects that require protection.

In comparison to equivalent porcelain-housed arresters, these polymer housed gapless arresters are typically half the weight.
This makes transportation, handling and installation much easier.
The single-unit, high voltage designs provide improved contamination performance over multi-unit designs.
Closer spacing Smaller line end castings and smaller grading rings allow closer phase-to-phase spacing.
Zinc: oxide varister blocks are centered and restrained with tightly woven fiberglass filament strands impregnated with epoxy resin.
For non-catalog polymer arresters that require higher creepage or special application please consult TANHO Electrical Equipment Co., Ltd.

Block Routine Tests:
Physical Inspection : Visual inspections are performed at several steps of the block manufacturing process.
Rated Energy Test:This procedure confirms the energy capability of each zinc oxide disc element.
Residual Voltage Test: Every block undergoes an 8/20 current wave impulse to verify its V-I characteristics.

MOV Block Batch QA Tests:
Square Wave Energy Test : Performed on a 5 disc sample from each batch, this test is performed to quantify the batch energy capability.
High Current Test : Each sample is subjected to high current discharges of the same polarity to ensure high current characteristics.
A/C Life Test : The discs are placed under test conditions for a minimum of 1000 hours to verify performance.

Arrester Routine Tests:
Physical Inspection: Every molded rubber part, block, wrap module, brackets and completed unit is visually examined to reject defective products.
A/C Reference Voltage Test: This test measures the voltage once a predetermined maximum peak current is reached.
Partial Discharge Test: This test ensures that the partial discharge level of the arrester does not exceed a level of 10 pC.
Residual Voltage : Tested on individual blocks

Arrester Type Tests:
Testing Compliant with GB/T8952-2005
Insulation withstand tests on housing
Residual voltage tests
Long-duration current impulse withstand
Operating voltage tests
Short circuit current tests
Internal partial discharge tests

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