Wenzhou Ginri Power Automation Co., Ltd. |
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Phase Unbalance Three Phase Voltage Monitoring Relay 2 C/O Contacts
CE Cetification
High-precision: phase sequence protector uses a powerful
microprocessor chip, the traditional technology uses AC sampling
technology, voltage measurement accuracy of ± 1%, the new
technology uses true RMS measurement technology, measurement is
more accurate, the error is less than 1%, at the same time The
three-phase power supply phase voltage values can be displayed
separately, which is equivalent to the functions of three voltage
meters. ZHRV wide power frequency: phase sequence protector can be
applied to 45 ~ 65HZ, to ensure universal use.
Wide power supply voltage: The phase sequence protector can be
applied to phase voltages of 150-300V (line voltage 250-500V),
which greatly reduces the size of the phase sequence protector,
making it easy for users to choose, and at the same time reducing
the amount of spare parts funds.
Independent Normally Open, Normally Closed Output: The phase
sequence protector adopts high-power double-group contact relays,
which can independently control devices with different voltage
levels, and is more widely used.
Installation method: The phase sequence protector base adopts rail
type and has two M4 screw holes. It can be installed on HT35 rails
or M4 screws. The two mounting methods are more flexible and
convenient.
Humanized Voltage Imbalance Protection: The phase sequence
protector internally creates an optimized mathematical model that
automatically adjusts the operating time based on the three-phase
voltage unbalance and does not require user settings.
Sets three-phase voltage display, over-voltage protection,
under-voltage protection, phase loss protection (phase-failure
protection), voltage imbalance protection, phase sequence
protection (wrong phase protection) in one, using a powerful
microprocessor chip and non-easy Loss of storage technology,
display using high-definition ultra-wide temperature Chinese liquid
crystal, with full-featured, stable performance, intuitive display,
easy operation.
♦ Features
-- Compact modular size
-- Three-phase monitoring of phase sequence, phase loss, over- and
undervoltage and phase unbalance
-- Adjustable over- and undervoltage threshold
-- Adjustable trip time
-- Powered by the measuring circuit
-- 2 C/O contacts
-- 5 LEDs for status indication
♦ Protective Functions
-- Phase sequence
-- Phase loss
-- Overvoltage
-- Undervoltage
-- Phase unbalance
♦ Typical Applications
• Pumps • Fans
• Blowers • Motors
• Compressors
♦ Approvals
• CE • CCC
♦ Technical data
Type | JVRD-W |
Measuring circuit | L1,L2,L3 |
Rated voltage | 220VAC,380VAC,440VAC, |
Monitoring functions | phase sequence,phase loss,overvoltage, |
Voltgae setting range | ±5%~±20% adjustable |
Indicators | phase sequence,phase loss,overvoltage, |
Output contacts | 2 C/O |
Contact capacity | 6A,250VAC |
Dimensions(H*W*D) | 79*23*79mm |
Mounting | DIN Rail |