ASCO POWER TECHNOLOGIES 450 Скачать руководство пользователя

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For troubleshooting, call technical assistance at 1-800-237-4567 or [email protected]

IO-70075

08/2020

ASCO 450/451/452/453 Surge Protective Device (SPD)

Grounding

Delta and

Resistance-Grounded

Power Systems

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Ungrounded power systems are inherently unstable and can produce

excessively high line-to-ground voltages during certain fault conditions.

During these fault conditions any electrical equipment, including an

SPD, may be subjected to voltages which exceed their designed rat-

ings. This information is being provided to the user so that an informed

decision can be made before installing any electrical equipment on an

ungrounded power system.

• Resistance-grounded power systems must be maintained in an over-

damped state to limit voltage overshoot and duration during operation.

•

Verification and adjustment of correct power system damping should be done:

– Periodically as part of normal system maintenance.

–

Following power system modifications.

Failure to follow these instructions will result in death or serious injury.

The ASCO 450/451/452/453 product is intended for use on resistance-

grounded power systems where the power system has been set for, and

is maintained in, an over-damped state. For the power system to be over-

damped, the current through the grounding resistor during a bolted phase-

to-ground fault must be significantly greater than the total charging current of

the system.

Periodic engineering evaluation of the power system is required to determine

the worst-case charging current of the system and to adjust the grounding

resistance accordingly. As the power system is modified, the value of the

grounding resistor must be evaluated and adjusted to maintain the system in

the over-damped state.

Solidly-Grounded

Power Systems

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Do not connect devices rated for use on solidly-grounded power sys-

tems to resistance-grounded (for example, High Resistance Ground) or

ungrounded power systems.

• Verify that the service entrance equipment is bonded to ground in accor-

dance with all applicable codes.

• Verify that the neutral terminal of the power system transformer feeding

the device is bonded to system ground in accordance with all applicable

codes.

Failure to follow these instructions will result in death or serious injury.

SPDs rated for use on solidly-grounded power systems must not be

connected to resistance-grounded or ungrounded power systems. Such a

connection can result in damage to the SPD.

Always verify the power system grounding configuration prior to application

of power to the device. Confirm that all ground bonds are installed at both

the service entrance equipment and power system transformer prior to

application of power.

DANGER

Содержание 450

Страница 1: ...Surge Protective Devices Installation Operation Manual Model 450 Model 451 Model 452 Model 453 450 451 452 453 ...

Страница 3: ...Systems Installation Conduit Location and Recommendations Wiring UL Conditions of Acceptability Dimension and Weights Wiring Diagrams Wiring Diagrams With Circuit Breaker Connection Switch UL 1283 Required Language EMI Filters Operation LED Status Indicators Audible Alarm Surge Counter Dry Contacts Maintanance and Troubleshooting Preventative Maintenance Troubleshooting Remplacement Parts 5 6 6 6 ...

Страница 4: ...nal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death DANGER DANGER indicates a hazardous situation which if not avoided will result in death or serious injury WARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury CAUTION CAUTION indicates a hazardous situation which if not avoided could result i...

Страница 5: ...larm state exists Use dry contacts to signal an alarm state to the central supervisory system for unmanned inaccessible or critical installations Use multiple surge protective devices to achieve redundancy for critical applications Failure to follow these instructions can result in equipment damage At end of life conditions Surge Protective Devices SPDs can lose their ability to block power system...

Страница 6: ...codes Check all applicable electrical codes to verify compliance Installation of modular surge suppressors should only be performed by qualified electrical personnel Inspect the entire shipping container for damage or signs of mishandling before unpacking the device Remove the packing material and further inspect the device for any obvious shipping damage If any damage is found and is a result of ...

Страница 7: ...OSION OR ARC FLASH Confirm the SPD voltage rating on the module or nameplate label is the same as the operating voltage Failure to follow these instructions will result in death or serious injury Prior to mounting the SPD verify that the device has the same voltage rating as the power distribution system in which it is installed Compare the nameplate voltage or model number on the SPD with the nam...

Страница 8: ... Corner Grnd Delta 3Ø 3W Grnd Fig 6 600C 600V B Corner Grnd Delta 3Ø 3W Grnd Fig 6 600D 600V Delta 3Ø 3W Grnd Fig 4 HRG Wye 450 Component SPD UL Recognized Standard Modes 451 Component SPD UL Recognized 10 Modes 452 Component SPD UL Recognized Standard Modes 453 Component SPD UL Recognized 10 Modes 10 100kA 15 150kA 20 200kA 25 250kA 30 300kA 31 300kA 40 400kA 45 450kA 50 500kA 60 600kA 80 800kA 9...

Страница 9: ...o the main service disconnect without supplemental overcurrent protection Type 1 SPDs can also be used in Type 2 applications load side of OCPD When either Type 1 or Type 2 SPDs are used on the load side they must be installed per local codes Since the current drawn by the SPD device during standby operation is negligible the SPD device can be connected to a dedicated separate branch circuit or co...

Страница 10: ...as close as possible to the circuit being addressed to minimize the wire length and optimize SPD performance Avoid long wire runs so that the device will perform as intended To reduce wire impedance from surge currents the phase neutral and ground conductors must be routed within the same conduit and tightly bundled or twisted together to optimize device performance Avoid sharp bends in the conduc...

Страница 11: ...ly scheduled inspections and testing as part of a comprehensive electrical maintenance program Failure to follow these instructions will result in death or serious injury The ASCO 450 451 452 453 has SPD elements connected from phase to ground It is critical that there be a robust and effective connection to the building grounding structure The grounding connection must utilize an equipment ground...

Страница 12: ...ower system to be over damped the current through the grounding resistor during a bolted phase to ground fault must be significantly greater than the total charging current of the system Periodic engineering evaluation of the power system is required to determine the worst case charging current of the system and to adjust the grounding resistance accordingly As the power system is modified the val...

Страница 13: ...m or either side of the device enclosure Use a conduit seal that is appropriate for the enclosure rating HAZARD OF ELECTRIC SHOCK EXPLOSION OR ARC FLASH Apply appropriate personal protective equipment PPE and follow safe electrical work practices See NFPA 70E CSA Z462 or NOM 029 STPS This equipment must only be installed and serviced by qualified electrical personnel Turn off all power supplying t...

Страница 14: ...ue and Table 2 on page 9 for acceptable wire size and installation torque 5 Twist conductors 1 2 turn or more for every twelve inches of length Do not loop or coil wires Be sure to maintain adequate wire bending space per NEC 6 If the remote signaling contacts of the diagnostic display panel are to be used refer to the section Dry Contacts on page 21 for wiring instructions UL Conditions of Accept...

Страница 15: ...5 x 10 88 x 4 50 in 273 x 276 x 114mm 6 50 lbs 2 95 kg Model 452 453 H W D in mm Weight lbs kg Standard 9 00 x 11 00 x 4 50 in 229 x 279 x 114mm 7 35 lbs 3 33 kg With optional disconnect switch on aluminum backplane 14 75 x 12 90 x 5 25 in 375 x 328 x 133mm 10 30 lbs 4 67 kg Figure 3 450 451 Dimensions in mm 7 Replace all devices doors and covers before turning on power to the equipment If the SPD...

Страница 16: ... Rights Reserved For troubleshooting call technical assistance at 1 800 237 4567 or customercare ascopower com 16 IO 70075 08 2020 Figure 4 452 453 Dimensions in mm ASCO 450 451 452 453 Surge Protective Device SPD Dimension and Weights ...

Страница 17: ...00 237 4567 or customercare ascopower com 17 IO 70075 08 2020 ASCO 450 451 452 453 Surge Protective Device SPD Wiring Wiring Diagrams Figure 5 Split Phase Three Wire Grounded Installation Figure 6 Three Phase Four Wire Grounded Wye Installation Figure 7 Three Phase Four Wire High Leg Delta Installation ...

Страница 18: ...ing Diagrams With Circuit Breaker Connection Switch Figure 8 Split Phase Three Wire Grounded Installation Circuit Breaker Connection Figure 9 Three Phase Four Wire Grounded Wye Installation with Circuit Breaker Connection Figure 10 Three Phase Four Wire High Leg Delta Installation with Circuit Breaker Connection ASCO 450 451 452 453 Surge Protective Device SPD Wiring ...

Страница 19: ...ing frame in the case of a high rise steel frame structure D Pressure terminal or pressure splicing connectors and soldering lugs used in the installation of the filter shall be identified as being suitable for the material of the conductors Conductors of dissimilar metals shall not be intermixed in a terminal or splicing connector where physical contact occurs between dissimilar conductors unless...

Страница 20: ...lenced until a qualified person is able to evaluate and service the SPD by pressing the alarm silence button The alarm will silence and the LED above the button will be lit The red service LED will continue to be illuminated until the inoperative condition had been cleared Figure 12 Diagnostic Display Panel Phase A B C Green LED indicators one per phase Green is good Out indicates problem Every su...

Страница 21: ...e dry contact block Maintain at least 1 0 in 25 mm separation between dry contact wiring and the power wiring in the enclosure Failure to follow these instructions will result in death or serious injury The ASCO 450 451 452 453 series SPD is provided with dry contacts The connection for the dry contacts is located on the inside of the SPD enclosure and will accept 22 14 AWG stranded or solid wire ...

Страница 22: ...onfirm with appropriate measurement equipment and discharge internal capacitance to ground Failure to follow these instructions will result in death or serious injury Inspect the SPD periodically to maintain system performance and continued transient voltage surge suppression Periodically check the state of the diagnostic display panel LED status indicators Routinely use the built in diagnostics t...

Страница 24: ...nd completeness in this literature Schneider Electric assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions 14550 58th Street North Clearwater Florida 33760 se com us en work support 1 888 778 2733 ...

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