434B microcomputer relay protection tester

Key Features:

◆434B microcomputer relay protection testerBuilt in high-performance industrial computer, Windows XP operating system, stable and reliable operation.

Standard four phase voltage and three-phase current are output simultaneously, with a voltage of 125V/phase and a current of 40A/phase. The parallel connection of three-phase current can reach up to 120A.

The 8.4-inch TFT true color display screen has a resolution of 800 × 600, making the overall operation of the single machine convenient and durable.

The domestic industry is the first to adopt imported brushed stainless steel panels, stainless steel keyboards, and touch sensitive mice, overcoming the disadvantages of inflexible and easily damaged operation of trackball mice.

The power amplifier adopts high fidelity linear power amplifier, which ensures the accuracy of small current and the stability of large current.

Equipped with an independent DC auxiliary voltage source output to provide power to relays or protective devices that require DC working power.

◆ Can connect laptops and desktop computers for testing, using USB interface to communicate directly with PC.

Product Overview:

◆434B microcomputer relay protection testerMeet all on-site testing requirements. It can be used to test various traditional relays and protection devices, as well as various modern microcomputer protections, especially for transformer differential protection and backup automatic switching devices, making testing more convenient and efficient.

The APWR434B model has a standard four phase voltage and three-phase current output simultaneously, with a voltage of 125V/phase and a current of 40A/phase. The three-phase current can reach up to 120A in parallel. Among them, APWR434B is a built-in industrial control model, while APWR434 is a non industrial control model that can only be operated with an external laptop. The usage method and technical parameters of these two models are the same.

All technical indicators meet the standards of DL/T624-1997 "Technical Conditions for Microcomputer based Test Devices for Relay Protection" issued by the Ministry of Electric Power.

Single machine independent operation, built-in high-performance industrial computer, with a main frequency of 300-600MHz and 128M memory, running Windows XP operating system.

The domestic industry is the first to adopt imported brushed stainless steel panels, stainless steel keyboards, and touch sensitive mice, overcoming the overall ease of operation and durability of trajectory machines.

◆ Equipped with GPS synchronization test function.

Technical Specifications:

◆ AC current source:

Phase current output (effective value): 0-40A/phase, accuracy 0.2%.

Three phase parallel output (effective value): 0-120A/Three phase in-phase parallel output.

Long term allowable operating value (effective value) of phase current: 10A.

Maximum output power per phase: 420VA.

The maximum output power of three-phase parallel current is 900VA.

Three parallel current maximum output allowed working time: 10s.

Frequency range: 0-1000Hz, accuracy: 0.001Hz.

Harmonic frequency: 2-20 times.

Phase: 0-360 °, accuracy: 0.1 °.

◆ DC current source:

Current output: 0- ± 20A/phase, accuracy 0.2%.

◆ AC voltage source:

Phase voltage output (effective value): 0-125V/phase, accuracy: 0.2%.

Line voltage output (effective value): 0-250V.

Phase voltage/line voltage output power: 75VA/100VA.

Frequency range: 0-1000Hz, accuracy: 0.001Hz.

Harmonic frequency: 2-20 times.

Phase: 0-360 °, accuracy: 0.1 °.

◆ DC voltage source:

Phase voltage output amplitude: 0- ± 150V accuracy: 0.2%

Line voltage output amplitude: 0- ± 300V

Phase voltage/line voltage output power: 90VA/180VA

◆ Switching terminal:

Switching input terminals: 8 pairs.

Empty contact: 1-20mA, 24V device internal active output.

Potential flip: 0-6VDC is a low level; 15-250VDC is a high level.

Switching output terminals: 4 pairs, air contact, breaking capacity: 110V/2A, 220V/1A.

Time measurement range:

Range 1ms-9999s, measurement accuracy 1ms.

◆ Volume and weight:

Volume 365 (mm) × 400 (mm) × 195 (mm), approximately 18Kg

◆ Power supply:

AC220V±10%，50Hz，10A。