The ABLQ-34/78 Elbow Surge Arrester from Anhuang

A smarter way to protect 25kV underground systems from lightning, switching transients, and the next storm season.

If you’ve ever pulled a 25kV elbow connector out of a pad-mount transformer after a thunderstorm blew through your service territory, you already know the story. Lightning finds the easiest path to ground — and on underground distribution, that path runs straight through the bushing well of every transformer and switchgear on the feeder. When the MOV inside the arrester finally gives up, you get a wet paper transformer, a blown bushing, and a 3 AM call to dispatch.

That’s exactly the problem the team at Anhuang built the new ABLQ-34/78 elbow surge arrester to fix.

What it is

The ABLQ-34/78 is a 200A, 25kV-class elbow surge arrester that drops straight onto any standard 200A loadbreak bushing extender. Inside the peroxide-cured EPDM rubber body sits a metal-oxide varistor (MOV) module — the same MOV technology that’s been protecting distribution gear for decades. The conductive EPDM jacket meets IEEE Standard 592, so it interfaces cleanly with the separable connectors you’re already using on pad-mounts, switchgear, vault entries, and entry cabinets.

The numbers

• · Continuous Operating Voltage (COV): 25 kV
• · Arrester Rated Voltage (Ur): 34 kV
• · Residual Voltage under 8/20 µs lightning impulse current: 78 kV
• · 200A loadbreak bushing extender interface
• · Suitable for energized loadmake / loadbreak operations
• · Meets IEEE Standard 386

Why crews like it

The little details matter in the field:

• · Hot-pluggable. Linemen can install it on a live front without rolling a truck just to swap a dead arrester.
• · Operating eye on top. Your shotgun stick grabs it without slipping, even with gloves on.
• · Stainless steel cap + tinned copper braid. The included ground lead (roughly 600 mm of 6 mm² braid) makes the grounding step quick and clean.
• · EPDM insulation. Stays flexible in cold weather, shrugs off UV, resists tracking.
• · 100% traceable. Every unit gets a unique QR code. The MOV gets periodic X-ray analysis, and every body is AC-withstand and partial-discharge tested before it leaves the floor.
• · ISO 9001 production. Anhuang runs 10,000 units a month out of their certified line, so lead times stay sane even on bigger orders.

Bottom line

If you’re running 25kV underground distribution and you’re still bolting a separate arrester onto a bracket somewhere upstream, the elbow-style ABLQ-34/78 is a cleaner, faster, safer way to handle overvoltage events — and it’ll shave outage minutes off your SAIDI the next time a storm rolls through.

Datasheets, drawings, and OEM/ODM options are available from Anhuang Cable Accessories. Worth a look before the next lightning season hits.