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KAYSAN EQUAL POTENTIAL CLAMP

KAYSAN EQUAL POTENTIAL CLAMP. KEP - 1000. What is an Equal Potential clamp?. An Equal Potential Clamp is a device than equalises two different potentials. ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT. What causes unequal potentials ?.

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KAYSAN EQUAL POTENTIAL CLAMP

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  1. KAYSANEQUAL POTENTIAL CLAMP KEP - 1000

  2. What is an Equal Potential clamp? An Equal Potential Clamp is a device than equalises two different potentials . ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  3. What causes unequal potentials ? Unexpected rises between different power systems as a result of LIGHTNING,WIND,ACCIDENTor SYSTEM MALFUNCTION. ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  4. WHAT STOPS IT ? A passive component that forms a hard bond between the potentials to reduce the difference to a safe level.. ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  5. A Large Gas Arrestor ! ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  6. How good is it ? ARRESTOR PERFORMANCE Voltage 70volts Energy rating 500 kA 8/20 uS Gas Arrestor 2 terminal device Spark over Voltage 56 ~ 84 VDC Max Impulse Breakdown <600v / uS … 100v/uS Nominal AC Discharge Current 500 Amps DC Holdover Voltage 50 volts Nom. alternating discharge Current (50 hZ 9 cycles) (A) 4000 Amps Long duration surge 4kA for > 400 mS Nominal Impulse Discharge 200KA 10/350uS Insulation Resistance > 10 megohm Series impedance once fired < 0.025 ohms Max Capacitance <20 pF Storage / operating Temp -40 ~ +90 C Weight 0.5kgs ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  7. What Happens ? When a voltage is applied across the terminals in excess of 70 volts the gas fires . When this happens it effectively creates a short circuit across the terminals to create a “HARD BOND” [resistance <0.025 ohms]. This bond will continue until the voltage reduces below 70 volts. ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  8. Should the voltage surge extend beyond 400 ms the arrestor will become hot. This heat increase triggers a solenoid that immediately activates a solid bar to place a direct short across the terminals. This direct short continues until the temperature of the arrestor falls 15 degrees below the activation level.If the voltage is still in excess of the trigger voltage the sequence continues until the problem is resolved or an external source removes the potential.

  9. Shorting bar 4 x Silver plated contacts .. 20mm dia. Gas arrestor ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  10. ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  11. Heat sensor ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  12. 12 volt Battery for solenoid System Test shield Cable connection Heavy duty solenoid

  13. Long life 12v heavy duty rechargeable battery. Easy changeover or optional charger / solar panel available ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  14. M20 brass studs for cable terminations x 2 Cables enter via cable glands in base of IP66 rated cabinet ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  15. HOW DO I TEST THE SOLENOID AND BATTERY ? GUARD INSULATOR ……. NORMAL GUARD INSULATOR …. NORMAL OPERATED / CONTACTS CLOSED GUARD INSULATOR IN TEST POSITION.. INSULATOR COVERS CONTACTS WHEN TEST SWITCH PUSHED …………. RETURN GUARD TO NORMAL AFTER TEST

  16. Where should I use an Equal potential clamp ? Wherever a need exists to clamp 2 separate electrical earthing systems together during fault conditions ONLY. Where-ever protection is necessary on ELV equipment against very high sustained surges and overvoltage conditions. ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  17. Bonding Two Separate Electrical Systems Operational conditions need these 2 systems be separated. However for safety reasons these separate systems should be bonded together. Possible dangerous touch potentials exist. Damage to equipment that could cause a disaster.

  18. Bonding Two Separate Electrical Systems

  19. Protection of ELV Equipment Areas may have high voltages present that can damage ELV equipment. Conductors attached to these circuits may be exposed to surge voltages and currents during fault conditions. In areas of high vulnerability, it may be advisable to ensure the fault current has a predetermined path.

  20. Protection of ELV Equipment

  21. Protection of ELV Equipment

  22. Where could this happen ?

  23. The highest risk of contact wire droppage is at level crossings ! Trucks High machinery Cranes Double deck buses Radio aerials and Ladders. ht

  24. Indirect damage from wire drop will mostly be to track circuit equipment as a minimum. Such as:- Track relays Surge arrestors Track circuit wiring Track circuit fuses plus unknown signaling equipment

  25. How can we mitigate this direct damage ? ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  26. How can we mitigate this direct damage ? ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  27. ANSWER !! KAYSAN Equal Potential Clamp KEP - 1000 ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT

  28. Made and Designed in New Zealand by Kaysan Gas Arrestor Made by Prosurge Electronics for Kaysan www.kaysan.co.nz sales@kaysan.co.nz ENGINEERED WITH QUALITY DESIGNED WITH THOUGHT A member of GRS.

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