Home ProductCurrent Relay
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 |
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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 |
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0. 3- 10A: definite time characteristics |
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0. 3-1A definite/inverse time characteristics, selectable |
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Time Setting |
Starting Delay Time (dt) |
Off-200sec, Adjustable |
Over-Current Trip Delay (ot) |
Defimite Time 0. 2~30sec |
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Inverse Time 1. OTOclass (30 curves) |
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Under-Current Trip Delay (ut) |
0. 5-30sec, definite time characteristics, if uc"mode is OFF, then OFF is displayed automatically in"ut"mode |
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Ground Fault Trip Delay (Et) |
Definite/Inverse: 0. 05, 0. 1-1-1 Osec |
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Ground Fault Starting Delay (Ed) |
Off/l-10sec |
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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 |
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Humidity |
30~90%RH Non-Condensing |
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Display |
7_Segment LEDs |
3 Phase current, Trip cause, Operating hour |
Bar-Graph |
Load factor for current setting (50-100%) |
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Insulation |
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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 |
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Between circuit |
Between circuit AC2000V, 60Hz, 1 Min |
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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
HTHY-PMZ (CT-through Type)
HTHY-PMZ (Terminal Type)