Table of Contents
Advertisement
Connecting the Phase Current Inputs
-1A
-5A (standard)
Refer to the 9700 Power
Meter's label for the current
input option purchased.
(&ÃQPX@SÃH@U@SÃDITU6GG6UDPIÃ6I9Ã76TD8ÃT@UVQ
Voltage
Direct Connection to
Option
Wye Systems up to:
-120
120 VAC line-to-neutral,
208 VAC line-to-line
-277
277 VAC line-to-neutral,
480 VAC line-to-line
-347
347 VAC line-to-neutral,
600 VAC line-to-line
PTs are required for all Delta systems. PTs are required for all Wye and
Single Phase systems with voltage levels greater than those indicated in the
table above.
Using Potential Transformers
The inputs of devices equipped with the 120 option can be used with PTs
that have secondaries rated at 120 VAC or less. This can include 100/√3,
110/ √3, 100, 110, or 120 VAC secondaries. Devices equipped with the 277
option can be used with PTs that have secondaries rated up to 277 VAC,
such as 220 VAC.
V1 Input Connection
The 9700 Power Meter uses the V1 input as the reference for frequency for
all power and energy related measurements. For any system configuration,
the V1 input must be connected to ensure accurate readings and correct
operation of the 9700 Power Meter.
Voltage Reference (Vref) Input Connection
The voltage reference terminal, Vref, of the 9700 Power Meter serves as the
zero voltage reference for voltage readings. A good, low impedance Vref
connection is essential for accurate measurement. Connection should be
made using a dedicated 14 AWG (4.0 mm
The 9700 Power Meter uses CTs to sense the current in each phase of the
power feed and (optionally) in the neutral or ground conductor. AWG 14
2
(4.0 mm
) wire is recommended for all phase current connections. CTs
should be connected to the device via a shorting block or test block to
facilitate the safe connection and disconnection of the CTs.
Direct Connection to Single
Phase Systems up to:
120 VAC line-to-neutral or
240 VAC line-to-line
277 VAC line-to-neutral or
554 VAC line-to-line
2
) wire.
"
Advertisement
Table of Contents
