Z
20
5249
-
0
B
PAGE 1 ©2011 Veris Industries USA 800.354.8556 or +1.503.598.4564 / suppor[email protected] 07112Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
TM
ACCESSORIES
INSTALLATION GUIDE
AH 0 8/AH09
DIMENSIONS
Multi-Turn Coils
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Follow safe electrical work practices. See NFPA 70E in the USA, or applicable local codes.
• This equipment must only be installed and serviced by qualified electrical personnel.
• Read, understand and follow the instructions before installing this product.
• Turn off all power supplying equipment before working on or inside the equipment.
• Use a properly rated voltage sensing device to confirm power is off.
DO NOT DEPEND ON THIS PRODUCT FOR VOLTAGE INDICATION
• SECONDARY LEADS/TERMINALS OF CURRENT OUTPUT (e.g. 5A) CTs MUST BE SHORTED,
OR CONNECTED TO THE BURDEN AT ALL TIMES.
Failure to follow these instructions will result in death or serious injury.
DANGER
NOTICE
• This product is not intended for life or safety applications.
• Do not install this product in hazardous or classified locations.
• The installer is responsible for conformance to all applicable codes.
• Mount this product inside a suitable fire and electrical enclosure.
PRODUCT IDENTIFICATION
Model Description
AH08 20 turn multi-wrap coil
AH09 60 turn multi-wrap coil
INSTALLATION
1. Disconnect power to the conductors to be monitored before beginning
installation. Do not install the CTs before all connections are made.
2. Select the appropriate multi-turn coil for your application: use the AH08 for
connection to a 100A CT; use the AH09 for connection to a 300A CT.
3. Select CTs with 5A outputs and a current rating suitable for the conductor to be
monitored (e.g. 5000A:5A).
4. Wire CTs to the controller or energy meter. Place an AH08/AH09 coil through each
CT (see Wiring section, page 2).
5. Attach the AH08/AH09 terminals to the secondaries of the 5A CTs.
6. Install the 5A CTs around the primary conductors.
AH 0 8/AH09
A
B
C
AH08
A = 2.2” (56 mm) nom.
B = 1.5“ (38 mm) nom.
C = 1.2” (29 mm) max.
D = 1.25” (32 mm) max.
D
AH09
A = 2.5“ (64 mm) nom.
B = 1.5” (38 mm) nom.
C = 1.2” (29 mm) max.
D = 1.25” (32 mm) max.
OPERATION
The AH08 and AH09 multi-turn coils are intended for use in applications where the
monitored load exceeds the 2400A rating of power meters. A suitable 5A current
transformer (CT) is applied to the primary, high-current conductor. The AH08/AH09
then amplies this 0-5A signal for accurate sensing by a power meter.
The AH08 is a 20-turn coil suitable for 100A meters, such as the 100A Enercept
H8036-0100-2. The AH09 is a 60-turn coil suitable for 300A meters, such as the 300A
Enercept H8036-0300-2 or the H81xx Commercial Energy Meter.
CALCULATIONS
To correctly interpret data reported by the power meter, use a data multiplier:
Data multiplier = Primary current on the 5A transformer / current rating of the meter
Actual current = data multiplier * meter reading
Example: Using an Enercept 100A meter and AH08 20-turn coil to monitor a 5000A
conductor produces a meter reading of 40A.
multiplier = 5000A / 100A = 50
actual current = 50 * 40A = 2000A
(2 pages)
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