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Phase Unbalance Current Protection Relay

The Phase Unbalance Current Protection Relay is an electric control device. It can make a predetermined step change of the controlled quantity in the electrical output circuit when the change of the input quantity reaches the specified requirement.

Product Description

Description

The Phase Unbalance Current Protection Relay is an electric control device. It can make a predetermined step change of the controlled quantity in the electrical output circuit when the change of the input quantity reaches the specified requirement. The Phase Unbalance Current Protection Relay is usually used in the control circuit of automation, playing the role of automatic regulation, safety protection, conversion circuit, etc. If you are looking for such three-phase relays, our products definitely meet your requirements with superior quality.

Features

The Phase Unbalance Current Protection Relay provided by our company sells well all over the world with its excellent quality and reasonable price. Our relay uses a high-precision metering chip, which can effectively protect the circuit. In addition, it features thickened circuit boards and clear solder joints. It also adopts a high-definition display that shows data, power, etc. in real time. What's more, its material itself is flame retardant, which is quite safe and reliable.

HTHY-PMZ

.MCU Based/Panel Mounting Type

.3 Integral Current Transformers

.Over-current, Under-Current, Phase Loss, Phase Unbalance, Phase Reversal, Short current, Ground Fault.

.Locked Rotor Protection and current output (4~20mA)

.Digital Ammeter & Digital Troubleshooting

.Bar-graph Type LED Display

.Selectable Trip time-Current Characteristics

.Independently Adjustable Starting Trip Delay Trip Time

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HTHY-PMZ

Protection

HTHY-PMZ

Protective Item

Trip Time

Protective Item

Trip Time

Over-current

O-TIME

Short Circuit

0.03-0. 05sec

under-current

Preset Ut time

Ground Fault

Preset Et time

Phase Reverse

3 sec

Locked Rotor

0. 5sec after d-time

Phase Unbalancal

8 sec

Stall

0.05-10sec

Specification

Model


PMZ

Current Setting

Over-Current (oc)

Refer to current Setting ranged. 4)

Range

Under-current (uc)

Off/O. 5-less than"oc"sctting

Ground Fault Current (Ec)

Off

0. 3- 10A: definite time characteristics

0. 3-1A definite/inverse time characteristics, selectable

Time Setting

Starting Delay Time (dt)

Off-200sec, Adjustable

Over-Current Trip Delay (ot)

Defimite Time 0. 2~30sec

Inverse Time 1. OTOclass (30 curves)

Under-Current Trip Delay (ut)

0. 5-30sec, definite time characteristics, if uc"mode is OFF, then OFF is displayed automatically in"ut"mode

Ground Fault Trip Delay (Et)

Definite/Inverse: 0. 05, 0. 1-1-1 Osec

Ground Fault Starting Delay (Ed)

Off/l-10sec

Tolerance

Current

+5%

Time

±5%

Control Power

220

DC/AC85-250V, 50/60Hz

Output Relay

OL (SH)

2-SPST AC250V/3A Resistive

GR

1-SPST AC250V/3A Resistive

Emvorpment

Temperature Store

-60~80'C

Operation

-20~60°C

Humidity

30~90%RH Non-Condensing

Display

7_Segment LEDs

3 Phase current, Trip cause, Operating hour

Bar-Graph

Load factor for current setting (50-100%)

Insulation


Between casing and circuit: over 10M Q DC500V

Dielectric Strength

Between casing and circuit

Between casing and circuit AC2000V, 60Hz, I Min

Between open contacts

Between open contacts AC 1000V, 60Hz, IMin

Between circuit

Between circuit AC2000V, 60Hz, 1 Min

Electrostatic Discharge

IEC61000-4-2

Lever 3: Air Discharge: +8kV, Contact Discharge: +6kV

Radiated Electromagnetic Field Disturbance IEC61000-4-3

Lever 3: lOV/m, 150MHz & 450MHz Portable transceiver

EFT/Burst

IEC61000-4-4

Lever 3:±2kV, 1 min

Sui'ge

IEC61000F-5

Lever 3:1. x50us, ±4kV (0°, 90°, 180°, 270° )

IMhz Burst disturbance IEC61000-4-12

Lever 3:2. 5kV, 1MHz

Conducted Emission

En55011

Class B

Typical Wiring

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HTHY-PMZ (CT-through Type)

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HTHY-PMZ (Terminal Type)


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