Auto Power Digital Earth Ground Resistance Tester for Safeguard Grounding

?Advanced?earth?Resistance?Tester?YH302

The?YH302?is?advanced?intelligent?Earth?Resistance?Tester, which?is?used?to?measure?grounding?resistance?for?grounding?pole?connected?to?some?conductive?part?

of?facility?in?the?power?distribution?unit?of?power?circuit?or?building?structure, ?for?working?grounding?(the?power?distribution?unit?of?power?circuit?is?setting?some?earth?

electrode?for?good?operating?condition), ?for?safeguard?grounding(?if?the?insulation?is?damaged, ?the?metal?case?of?electric?facility?and?the?construct?rack?of?the?power?distribution?unit?or?electric?pole?tower?may?be?electrified.?

Therefor, setting?safeguard?grounding?to?prevent?person?and?facility?from?electric?damage), ?for?safeguard?grounding?for?the?thunder?and?lightning?

(It?is?seted?for?thunderstruck?safeguard?facility?is?discharg), ?for?static?electricity?safeguard?grounding?(to?prevent?the?inflammable?oil, ?natural?gas?tin?and?pipe?from?

static?electricity?danger).?For?grounding?pole?(It?is?metal?conductor?that?is?buried?in?the?soil?and?directly?in?touched?with?earth), ?for?grounding?wire(It?is?used?to?connect?the?ground?terminal?of?electric?facility?to?grounding?pole), ?and?for?the?Grounding?Net?(It?is?Large-Size?horizontal?net?grounding?unit?that?is?consist?of?vertial?grounding?pole?and?horizontal?grounding?pole?used?for?Power?House, ?

Transformer?Station.?The?grounding?unit?has?discharge?function?and?Stabilize?voltage?)?The?tester?used?for?the?furnish?power, ?transformer?station?, ?

it\'s?rated?AC?voltage?up?to?500KV.

Features

☉?Test?voltage?have?20V/48V?Provide?choice

☉?2?pole?resistance?measurement

☉?3?pole?&?4?pole?earth?resistance?measurement

☉?4?pole?soil?resistivity?testing?

☉?Current?Clamp?selection?method?is?used?to?measuring?earth?resistance?without?breaking?grounding?connection

☉?Double?clamp?without?auxiliary?electrode?is?used?to?fast?measuring?grounding?resistance

☉?Auto?and?manual?control?the?test?frequency?have?94Hz, 105Hz, 111Hz, 128Hz?four?frequency?Provide?choice.?Automatic?frequency

???control(AFC)?is?automatically?identified?interference?frequency?and?then?selected?the?proper?measurement?frequency?, ?so?that?reduced??

???the??affect?of?interference?voltage.

☉?Automatically?measuring?the?interference?voltage?and?the?leakage?current.?The?limited?value?will?be?alarmed.

☉?Auto?power?off

☉?Clock?display

☉?Double?battery?power?supply?and?low?battery?indication

☉?Data?storage:Can?memorize?up?to?100?measuring?values, ?and?uploading?to?PC?by?USB2.0?interface.

Specifications?